MAGELLAN HEALTH SERVICES INC
8-K, 1997-12-17
HOSPITALS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT




     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


Date of Report:                                 December 17, 1997


Date of earliest event
reported:                                       December 4, 1997




                         MAGELLAN HEALTH SERVICES, INC.
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter).


        Delaware                    1-6639                 58-1076737
- -----------------------  ----------------------  -------------------------------
(State of incorporation)(Commission File Number)(IRS Employer Identification No)



3414 Peachtree Road, N.E., Suite 1400, Atlanta, Georgia               30326
- -----------------------------------------------------------------------------
         (Address of principal executive offices)                   (Zip Code)



               (404) 841-9200
- ---------------------------------------------------
(Registrant's telephone number, including area code)






<PAGE>



Item 2.  Acquisition or Disposition of Assets

         On December 4, 1997,  the  Registrant  (the  "Company"  or  "Magellan")
acquired  the   outstanding   common  stock  of  Human  Affairs   International,
Incorporated  ("HAI"),  a wholly-owned  subsidiary of Aetna Insurance Company of
Connecticut  and  a  unit  of  Aetna  U.S.  Healthcare,   Inc.  ("AUSHC"),   for
approximately  $122.1  million in cash.  HAI manages the care of over 15 million
covered lives through employee assistance programs and managed behavioral health
plans.  The  Company  funded the  acquisition  of HAI with cash on hand and will
account for the acquisition of HAI using the purchase method of accounting.

         Subsequent to the consummation of the HAI acquisition,  the Company may
be required  to make  additional  annual  contingent  payments  over a five-year
period of up to $60 million per year for an aggregate of $300 million,  to AUSHC
(the "Contingent  Payments").  The amount and timing of the contingent  payments
will depend upon HAI's  receipt of  additional  covered lives under two separate
calculations. Under the first calculation, the Company may be required to pay up
to $25 million per year for each of five years following the  acquisition  based
on the net  increase in  "incremental  lives" in specified  products.  Under the
second  calculation,  the  Company  may be required to pay up to $35 million per
year  for  each of five  years  based  on the net  cumulative  increase  in "HMO
incremental  lives"  in  certain  products.  The  Company  expects  to fund  the
Contingent  Payments,  if any, with a combination  of cash on hand,  future cash
flows from  operations  and amounts  borrowed  pursuant to its Revolving  Credit
Agreement.

         The total consideration in the HAI acquisition, including the potential
Contingent  Payments,  was determined through arm's length negotiations  between
representatives of Magellan and AUSHC . No directors or officers of Magellan and
its affiliates or AUSHC and its affiliates had any material  relationship  prior
to the HAI acquisition.

         Magellan and its provider business  affiliates and AUSHC and its health
insurance and  behavioral  managed care  affiliates  transacted  business in the
ordinary course prior to the HAI acquisition.

         The Company and HAI entered into a Master Service  Agreement with AUSHC
whereby  AUSHC and HAI will provide  access to and  coordinate  the provision of
behavioral  health care services to AUSHC members.  The Master Service Agreement
covers approximately 58% of HAI's initial annual revenues.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

Financial Statements

         The following HAI Financial  Statements,  together with the independent
auditors' reports thereon, are included herein:

1)       Audited Consolidated Balance Sheets as of December 31, 1996 and 1995;
2)       Audited Consolidated Statements of Income for the years ended 
         December 31, 1996 and 1995;
3)       Audited Consolidated Statements of Stockholder's Equity for the years
         ended December 31, 1996 and 1995;
4)       Audited Consolidated Statements of Cash Flows for the years ended 
         December 31, 1996 and 1995;
5)       Unaudited Consolidated Balance Sheet as of September 30, 1997;
6)       Unaudited Consolidated Statements of Income for the nine months ended 
         September 30, 1997 and 1996;
7)       Unaudited Consolidated Statement of Stockholder's Equity for the nine 
         months ended September 30, 1997 and
8)       Unaudited Consolidated Statements of Cash Flows for the nine months 
         ended September 30, 1997 and 1996.



                                        2

<PAGE>



           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                   (A Wholly Owned Subsidiary of Aetna Inc.)


                        Consolidated Financial Statements

                           December 31, 1996 and 1995


                   (With Independent Auditors' Report Thereon)

                                        3

<PAGE>



                          Independent Auditors' Report
                          ----------------------------


The Board of Directors and Stockholder of
Human Affairs International, Incorporated:

We have audited the  accompanying  consolidated  balance sheets of Human Affairs
International,  Incorporated  and  subsidiaries,  (a wholly owned  subsidiary of
Aetna  Inc.),  as of December  31, 1996 and 1995,  and the related  consolidated
statements of income,  stockholder's  equity,  and cash flows for the years then
ended.  These  consolidated  financial  statements are the responsibility of the
Company's  management.  Our  responsibility  is to  express  an opinion on these
consolidated financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly,  in all  material  respects,  the  financial  position of Human  Affairs
International,  Incorporated  and subsidiaries as of December 31, 1996 and 1995,
and the  results  of their  operations  and their  cash flows for the years then
ended in conformity with generally accepted accounting principles.



                                                       /s/ KPMG Peat Marwick LLP
                                                       -------------------------
February 7, 1997, except as to
         note 10 which is as of
         February 27, 1997


                                        4

<PAGE>

<TABLE>
<CAPTION>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                          (A Wholly Owned Subsidiary of Aetna Inc.)

                           CONSOLIDATED BALANCE SHEETS


                                                                                           September 30,         December 31,
                                                                                                          --------------------------
                                                                                              1997            1996           1995
                                                                                           ------------   -----------    -----------
                                  Assets                                                    (Unaudited)
<S>                                                                                       <C>             <C>           <C> 
Current assets:
       Cash and cash equivalents                                                           $36,255,658    $33,446,435    $22,294,437
       Receivables:
            Contract service  fees,  less  allowance  for  doubtful  accounts of
                 $68,422 at September 30, 1997 and December 31, 1996 and
                 $375,748 at December 31, 1995                                               6,771,313      6,364,124      6,206,738
            Related party (note 6)                                                           5,547,515      2,957,865      2,250,953
            Income taxes (note 3)                                                              130,188         99,584           --
            Other current assets                                                                29,162        423,471        269,180
            Deferred income taxes (note 3)                                                     364,629        364,629        419,309
                                                                                           -----------    -----------    -----------

                 Total current assets                                                       49,098,465     43,656,108     31,440,617
                                                                                           -----------    -----------    -----------

Property, equipment, and leasehold improvements, less accumulated
       depreciation and amortization (note 2)                                                  241,923        406,044        846,285
Cost in excess of net assets acquired of purchased subsidiaries, less
       accumulated amortization of $205,006 at September 30, 1997 and $143,504
       at December 31, 1996 and $61,502 at December 31, 1995 (note 8)                          615,016        676,518        758,520
Noncurrent deferred income taxes (note 3)                                                       56,751        364,498        808,821
Other assets                                                                                    21,033         63,006         62,995
                                                                                           -----------    -----------    -----------

                                                                                           $50,033,188    $45,166,174    $33,917,238
                                                                                           ===========    ===========    ===========

                   Liabilities and Stockholder's Equity

Current liabilities:
       Unearned contract service fees                                                      $ 4,260,590    $ 4,591,431    $ 4,832,356
       Accounts payable and accrued liabilities                                             11,776,208      8,231,292      6,948,838
       Related party (note 6)                                                                9,441,603      2,454,957      6,793,418
       Current installments of note payable (note 8)                                              --          333,333        333,333
       Current installments of noncompete and salary continuation
            agreements (note 7)                                                                   --             --          500,932
       Current installments of obligations under capital leases (note 5)                         7,098          7,058          9,453
       Income taxes payable (note 3)                                                         1,328,814           --          823,439
                                                                                           -----------    -----------    -----------

                 Total current liabilities                                                  26,814,313     15,618,071     20,241,769

Note payable, less current installments (note 8)                                                  --             --          333,333
Obligations under capital leases, less current installments (note 5)                             2,635         10,112         18,093
Other long-term liabilities                                                                      2,737          2,404         92,519

Stockholder's equity (notes 6 and 10):
       Common stock, no par value.  Authorized 50,000 shares;
            issued and outstanding 10,000 shares                                                 1,000          1,000          1,000
       Additional paid-in capital                                                                 --       11,092,000     11,092,000
       Retained earnings                                                                    23,212,503     18,442,587      2,138,524
                                                                                           -----------    -----------    -----------

                 Total stockholder's equity                                                 23,213,503     29,535,587     13,231,524

Commitments and contingencies (notes 5, 9 and 10)
                                                                                           -----------    -----------    -----------
                                                                                           $50,033,188    $45,166,174    $33,917,238
                                                                                           ===========    ===========    ===========
</TABLE>
See accompanying notes to consolidated financial statements.

                                        5

<PAGE>
<TABLE>
<CAPTION>



           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                        Consolidated Statements of Income

                                                                      Nine Months ended


                                                                         September 30,                   Year ended December 31,
                                                               -------------------------------       -------------------------------
                                                                   1997                1996               1996              1995
                                                               ------------       ------------       ------------       ------------
                                                                (Unaudited)        (Unaudited)
<S>                                                            <C>                <C>                <C>                <C>    

Revenues:
       Contract service fees (note 6)                          $ 88,845,581       $ 78,033,338       $105,923,687       $ 94,148,402
       Interest                                                   1,166,952          1,100,649          1,538,769          2,240,216
                                                               ------------       ------------       ------------       ------------

            Total revenues                                       90,012,533         79,133,987        107,462,456         96,388,618
                                                               ------------       ------------       ------------       ------------

Expenses (note 6):
       Operating costs                                           67,128,675         59,828,799         80,696,520         70,209,268
       Interest                                                         900                673              1,033              1,701
       Depreciation and amortization                                219,458            404,455            517,404            822,273
       Noncompete employment agreement (note 7)                        --              105,708            105,708            262,824
       Minority interest                                               --                 --                 --               71,524
                                                               ------------       ------------       ------------       ------------

            Total expenses                                       67,349,033         60,339,635         81,320,665         71,367,590
                                                               ------------       ------------       ------------       ------------

            Income before income taxes                           22,663,500         18,794,352         26,141,791         25,021,028

Income tax expense (note 3)                                       8,985,584          7,343,152          9,837,728          9,775,720
                                                               ------------       ------------       ------------       ------------

            Net income                                         $ 13,677,916       $ 11,451,200       $ 16,304,063       $ 15,245,308
                                                               ============       ============       ============       ============

</TABLE>
See accompanying notes to consolidated financial statements.


                                        6

<PAGE>

<TABLE>
<CAPTION>


          HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES 
                   (A Wholly Owned Subsidiary of Aetna Inc.)

                 CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY

                      Nine months ended September 30, 1997
                           (unaudited) and years ended
                           December 31, 1996 and 1995



                                                                                                     Retained
                                                                                Additional           earnings              Total
                                                                Common           paid-in           (accumulated        stockholder's
                                                                 stock           capital             deficit)             equity
                                                            ------------       ------------        -------------       -------------
<S>                                                         <C>                <C>                 <C>                 <C>  
Balances at December 31, 1994                               $      1,000       $ 18,692,000        $   (706,784)       $ 17,986,216

Dividend to parent                                                  --                 --           (12,400,000)        (12,400,000)

Return of capital to parent                                         --           (7,600,000)               --            (7,600,000)

Net income                                                          --                 --            15,245,308          15,245,308
                                                            ------------       ------------        ------------        ------------

Balances at December 31, 1995                                      1,000         11,092,000           2,138,524          13,231,524

Net income                                                          --                 --            16,304,063          16,304,063
                                                            ------------       ------------        ------------        ------------

Balances at December 31, 1996                                      1,000         11,092,000          18,442,587          29,535,587

Dividend to parent (unaudited)                                      --                 --            (8,908,000)         (8,908,000)

Return of capital to parent (unaudited)                             --          (11,092,000)               --           (11,092,000)

Net income (unaudited)                                              --                 --            13,677,916          13,677,916
                                                            ------------       ------------        ------------        ------------

Balances at September 30, 1997 (unaudited)                  $      1,000       $       --          $ 23,212,503        $ 23,213,503
                                                            ============       ============        ============        ============

</TABLE>
See accompanying notes to consolidated financial statements.


                                        7

<PAGE>
<TABLE>
<CAPTION>



           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                      Consolidated Statements of Cash Flows

                                                                             Nine Months ended
                                                                               September 30,              Years ended December 31,
                                                                       ----------------------------    -----------------------------
                                                                            1997            1996            1996            1995
                                                                       ------------    ------------    ------------    -------------
                                                                        (Unaudited)    (Unaudited)
<S>                                                                    <C>             <C>             <C>             <C>    
Cash flows from operating activities:
       Net income                                                      $ 13,677,916    $ 11,451,200    $ 16,304,063    $ 15,245,308
       Adjustments to reconcile net income to net cash provided
          by operating activities:
              Depreciation and amortization                                 219,458         404,455         517,404         822,273
              Loss on disposal of assets                                     41,776          10,378          32,066          77,260
              Increase (decrease) in allowance for doubtful accounts          7,407         150,000        (314,733)        314,733
              (Increase) decrease in contract service fees receivable      (414,595)     (2,127,925)        157,347         539,966
              Decrease (increase) in related party receivable            (2,589,650)       (152,662)       (706,912)       (196,706)
              Decrease (increase) in income tax receivable                  (30,604)      1,069,259         (99,584)           --
              Decrease (increase) in other current assets                   394,308         175,582        (154,291)         13,674
              Decrease in deferred tax assets                               307,747         470,598         499,003         167,190
              Decrease (increase) in other assets                            41,971              (9)            (11)          3,027
              Decrease in unearned contract service fees                   (330,840)       (557,382)       (240,925)       (234,116)
              Increase (decrease) in accounts payable and accrued 
                 liabilities                                              3,544,916         820,325       1,282,454      (1,497,670)
              Increase (decrease) in payable to related party             6,986,646      (3,931,504)     (4,338,461)     (1,396,534)
              Increase (decrease) in noncompete and salary 
                 continuation agreements payable                               --          (500,932)       (500,932)         34,180
              Increase (decrease) in income taxes payable                 1,328,814       1,050,060        (823,439)     (3,133,475)
              Increase (decrease) in other long-term liabilities                333         (72,764)        (90,115)       (331,729)
              Increase in minority interest                                    --              --              --            71,524
                                                                       ------------    ------------    ------------    ------------

                 Net cash provided by operating activities               23,185,603       8,258,679      11,522,934      10,498,905
                                                                       ------------    ------------    ------------    ------------

Cash flows from investing activities:
       Capital expenditures                                                 (39,696)        (44,698)        (35,895)       (209,328)
       Proceeds from disposal of fixed assets                                 4,087           4,949           8,668          34,818
       Distribution to minority interest                                       --              --              --          (309,610)
       Payment for purchase of minority interest (Note 8)                  (333,333)       (333,333)       (333,333)       (333,334)
                                                                       ------------    ------------    ------------    ------------

                 Net cash used in investing activities                     (368,942)       (373,082)       (360,560)       (817,454)
                                                                       ------------    ------------    ------------    ------------

Cash flows from financing activities:
       Principal payments on capital lease obligations                       (7,438)           --           (10,376)        (16,839)
       Return of capital to parent                                      (11,092,000)           --              --        (7,600,000)
       Dividends paid to parent                                          (8,908,000)           --              --       (12,400,000)
                                                                       ------------    ------------    ------------    ------------

                 Net cash used in financing activities                  (20,007,438)           --           (10,376)    (20,016,839)
                                                                       ------------    ------------    ------------    ------------

Net increase (decrease) in cash and cash equivalents                      2,809,223       7,885,597      11,151,998     (10,335,388)

Cash and cash equivalents, beginning of period                           33,446,435      22,294,437      22,294,437      32,629,825
                                                                       ------------    ------------    ------------    ------------

Cash and cash equivalents, end of period                               $ 36,255,658    $ 30,180,034    $ 33,446,435    $ 22,294,437
                                                                       ============    ============    ============    ============

Supplemental Disclosures of Cash Flow Information

Interest paid                                                          $        900    $        673    $      1,033    $      1,701
Income taxes paid                                                         7,138,190       5,559,681      11,647,990      12,742,005

Supplemental Disclosures of Noncash Investing and Financing Activities

Capital lease obligations incurred for office equipment                $       --      $       --      $       --      $     25,248
Note payable to a related party for acquisition of minority interest           --              --              --           666,666

</TABLE>

See accompanying notes to consolidated financial statements.




                                        8

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995




(1)      Organization and Summary of Significant Accounting Policies

         (a)      Description of Business

                  Human  Affairs  International,  Incorporated  is a provider of
                  employee  behavioral health assistance  programs and a managed
                  behavioral  health  care  company.   The  employee  assistance
                  programs  are  provided  for  clients'   employees  and  their
                  families  and  include  the  management  of  the  delivery  of
                  behavioral  health  services that deal with personal  problems
                  that  can  interfere  with an  employee's  well-being  and job
                  performance.  These problems may include,  among other things,
                  psychological  disorders,  family or marital  issues,  alcohol
                  and/or other drug abuse, stress,  depression, and anxiety. The
                  managed  behavioral  health care program  manages the clinical
                  services  delivered  for the treatment of  psychiatric  and/or
                  substance abuse conditions  through the process of negotiating
                  clinical  quality  at a  reasonable  price in order to achieve
                  optimal  care.  The  Company   provides   services   primarily
                  throughout the Continental United States, Alaska, and Hawaii.

         (b)      Basis of Presentation

                  The accompanying consolidated financial statements include the
                  accounts of Human Affairs International,  Incorporated and its
                  wholly owned  subsidiaries,  Human  Affairs  International  of
                  California, Incorporated and Human Affairs of Alaska which was
                  an unincorporated joint venture in 1994 (collectively referred
                  to as the Company). All significant  intercompany accounts and
                  transactions  have  been  eliminated  in  consolidation.   The
                  Company is a wholly owned  subsidiary of Aetna Life  Insurance
                  Company  (ALIC).  The Company's  ultimate parent is Aetna Inc.
                  (the Parent).  During 1996,  Aetna Life and Casualty  Company,
                  the Company's former parent, merged with U.S. Healthcare, Inc.
                  and each  became a wholly  owned  subsidiary  of a new holding
                  company, Aetna Inc.

                  The unaudited  consolidated  condensed financial statements of
                  the Company as of September 30, 1997,  and for the  nine-month
                  periods ended  September  30, 1997 and 1996,  were prepared by
                  the Company without audit. Certain information and

                                        9

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995



                  footnote disclosures normally included in financial statements
                  prepared in  accordance  with  generally  accepted  accounting
                  principles  have been condensed or omitted.  In the opinion of
                  management,  all  necessary  adjustments  (consisting  only of
                  normal recurring adjustments) have been made to present fairly
                  the consolidated  financial position and results of operations
                  and cash flows for these  periods.  The results of  operations
                  for the period ended  September 30, 1997, are not  necessarily
                  indicative  of  the  expected  results  for  the  year  ending
                  December 31, 1997.

         (c)      Cash Equivalents

                  The Company  considers all highly liquid debt instruments with
                  original  maturities  of  three  months  or  less  to be  cash
                  equivalents.  Cash equivalents consisted of money market funds
                  of $31,693,520  and $21,901,800 at December 31, 1996 and 1995,
                  respectively. At December 31, 1996 and 1995, the book value of
                  cash equivalents approximates fair value.

         (d)      Cost in Excess of Net Assets Acquired of Purchased 
                  Subsidiaries

                  These costs  represent the excess purchase price over the fair
                  value  of  the  net  assets  of  acquired  companies  and  are
                  amortized on a straight-line basis over a period of ten years.
                  During 1995,  additional  costs were incurred when the Company
                  acquired the remaining  interest of the Alaska Joint  Venture.
                  Amortization expense was $82,002 and $61,502 in 1996 and 1995,
                  respectively.

         (e)      Property, Equipment, and Leasehold Improvements

                  Property,  equipment,  and leasehold improvements are recorded
                  at cost.  Depreciation is calculated on a straight-line  basis
                  over the estimated useful lives of the assets which range from
                  three to ten years.

         (f)      Revenue Recognition

                  Contract services fees are primarily determined on a monthly
                  per capita amount and

                                       10

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995 



                  are  recognized  over  the  life  of  the  contract.  Unearned
                  contract  service fees are billed or collected  revenues  that
                  have not been  recognized as income pending the performance of
                  contract service obligations. These fees primarily represent 1
                  to  12  months  of  advance   billings  as  specified  in  the
                  contracts.

         (g)      Contract Service Costs

                  The direct  operating  costs  associated  with  servicing  the
                  contracts  are  expensed as incurred and included in operating
                  costs.  These  costs  are  directly  related  to the level and
                  timing of the services provided.  These direct operating costs
                  are accrued as services are rendered and include  estimates of
                  the  costs of  services  rendered  but not yet  reported.  The
                  Company  accrues for losses on  contracts  when it is probable
                  that the  expected  future  service  costs of a contract  will
                  exceed the service fees expected on the contract.

         (h)      Income Taxes

                  The Company is included in the consolidated federal income tax
                  return of the Parent and the Parent's other  subsidiaries.  In
                  accordance  with  a tax  sharing  arrangement,  the  Company's
                  current  federal income tax provisions are generally  computed
                  as if the Company  were filing a separate  federal  income tax
                  return; current income tax benefits, including those resulting
                  from carrybacks,  are recognized to the extent realized in the
                  consolidated return.

                  Deferred  income tax assets and liabilities are recognized for
                  the expected future tax consequences of temporary  differences
                  between  the  income  tax and  financial  statement  reporting
                  amounts of assets and liabilities.

         (i)      Use of Estimates

                  The  preparation  of financial  statements in conformity  with
                  generally accepted  accounting  principles requires management
                  to make  estimates  and  assumptions  that  affect the amounts
                  reported in the consolidated financial statements and

                                       11

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995



                  accompanying notes.  Actual results could differ from those 
                  estimates.


         (j)      Reclassifications

                  Certain  amounts in 1995 have been  reclassified to conform to
the 1996 presentation.

(2)      Property, Equipment, and Leasehold Improvements

         The  components  of property,  equipment,  and  leasehold  improvements
follow:

                                           1996                   1995
                                      ----------------       ----------------
Property and equipment               $      3,785,868      $       4,252,318
Leasehold improvements                        180,693                186,111
                                      ----------------       ----------------

                                            3,966,561              4,438,429

Less accumulated depreciation
     and amortizaiton                       3,560,517              3,592,144
                                      ----------------       ----------------

                                     $        406,044      $         846,285
                                      ================       ================



(3)      Income Taxes

         Income tax expense consists of the following:

                                          Current       Deferred         Total
                                        ----------     ----------     ----------
Year ended December 31, 1996:
     U.S. federal                       $8,017,571     $  192,764     $8,210,335
     State and local                     1,598,406         28,987      1,627,393
                                        ----------     ----------     ----------

                                        $9,615,977     $  221,751     $9,837,728
                                        ==========     ==========     ==========
Year ended December 31, 1995:
     U.S. federal                       $8,109,809     $  145,335     $8,255,144
     State and local                     1,498,721         21,855      1,520,576
                                        ----------     ----------     ----------

                                        $9,608,530     $  167,190     $9,775,720
                                        ==========     ==========     ==========












                                       12

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995




                  The following schedule  reconciles the computed "expected" tax
         expense  based on a U.S.  federal  corporate  tax rate of 35 percent in
         effect for the year, to the tax expense  reflected in the  accompanying
         consolidated financial statements:

                                                       1996           1995
                                                   -----------    ------------
Computed "expected" tax expense                    $ 9,149,627    $  8,757,360
State tax (net of federal income tax benefit)        1,057,805         988,374
Change in beginning-of-year valuation allowance
     allocated to income tax expense                  (389,395)        (18,984)
Other                                                   19,691          48,970
                                                    ----------     -----------

         Total tax expense                         $ 9,837,728     $ 9,775,720
                                                    ==========     =============


         The significant components of deferred income tax expense for the years
ended December 31, 1996 and 1995, are as follows:
                                                      1996           1995
                                                   ----------     ----------
Deferred tax expense (exclusive of the effects of
     other components listed below)                $  611,146     $  186,174
Decrease in beginning-of-year balance of the
     valuation allowance for deferred tax assets     (389,395)       (18,984)
                                                    ---------     ----------

                                                   $  221,751     $  167,190
                                                    =========     ==========






















                                       13

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995



         The tax effects of temporary differences that give rise to deferred tax
assets and deferred tax liabilities at December 31, 1996 and 1995, are presented
below:

                                                       1996             1995
                                                   -----------     -------------
Deferred tax assets:
Accounts receivable, principally due to
     allowance for doubtful accounts              $     23,338     $    143,724
Deferred compensation, due to accrual for
     financial reporting purposes                           --          209,217
Accrued liabilities not deductible until paid
     for tax reporting purposes                        253,664          357,701
HMO claims accrued not yet reported                    255,795          122,219
Rent payable on long-term lease forfeiture, due
     to accrual for financial reporting purposes        32,558           93,407
Software expense                                       253,654          465,290
Amortization due to goodwill                            18,278            7,842
Tax credit carryforwards                                38,652           37,398
Net operating loss carryforward                             --          368,337
                                                   ------------     ------------

         Total gross deferred tax assets               875,939        1,805,135

         Less valuation allowance                      136,957          526,352
                                                   ------------     ------------

         Total deferred tax assets                     738,982        1,278,783
                                                   ------------     ------------
Deferred tax liabilities-fixed assets, due to
     differences in depreciation methods                (9,855)         (50,653)
                                                   ------------     ------------

         Net deferred tax assets                  $    729,127     $  1,228,130
                                                   ============     ============

Net current deferred tax assets                   $    364,629     $    419,309

Net noncurrent deferred tax assets                     364,498          808,821
                                                   ------------     ------------

                                                  $    729,127     $  1,228,130
                                                   ============     ============


The valuation  allowance for deferred tax assets as of January 1, 1996 and 1995,
was  $526,352  and  $545,336,  respectively.  The change in the total  valuation
allowance  for the years ended  December  31,  1996 and 1995,  was a decrease of
$389,395  and  $18,984,  respectively.   Subsequently  recognized  tax  benefits
relating to the  valuation  allowance for deferred tax assets will be recognized
as  an  income  tax  benefit  in  the  consolidated  statements  of  operations.
Management believes that it is more

                                       14

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995




likely than not that the Company  will  realize the benefit of the net  deferred
tax asset in the future.  During 1996,  the Company  utilized net operating loss
carryforwards for tax return purposes of approximately $1,052,000.

(4)      Employee Retirement Plans

         The Company's employees are covered under the Parent's Employee Benefit
         Plans and are  entitled  to  benefits  earned  under  the plan  through
         December  31,  1996.   Eligible  employees  receive  pension  incentive
         savings, post retirement health care, and life insurance benefits.  The
         aggregate  charges to operations for all benefit plans are allocated by
         the  Parent  based  upon  measures  appropriate  for the  nature of the
         service  provided and are included in the overall  benefits  allocation
         from the Parent which approximates 23 percent of the Company's salaries
         and  wages.  The  related  liabilities  are  recorded  on the  Parent's
         financial statements.

(5)      Leases

         The Company is obligated under capital leases for equipment that expire
         at various  dates during the next five years.  At December 31, 1996 and
         1995,   equipment  of  $52,141  and  $48,215  and  related  accumulated
         amortization of $34,971 and $33,258, respectively,  were recorded under
         these capital leases.  Amortization of assets held under capital leases
         is included in depreciation expense.

         The Company  leases office space and equipment  under  operating  lease
         agreements.   Rent  expense  under  these  leases  was  $4,092,214  and
         $3,685,159 in 1996 and 1995, respectively.

         Future  minimum lease  payments under  noncancelable  operating  leases
         (with  initial  or  remaining  lease  terms in  excess of one year) and
         future  minimum  capital lease  payments as of December 31, 1996 are as
         follows:






                                       15

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995

<TABLE>
<CAPTION>


                                                                                                     Operating
                                                                                   Operating        Leases, net
                                                    Capital       Operating         sublease        of sublease
                                                    leases          leases          rentals           rentals
                                                   ----------     -----------     -------------     ------------
<S>                                              <C>              <C>            <C>              <C>    

Year ending December 31:
     1997                                        $     8,261     $ 2,909,298     $     (83,444)   $   2,825,854
     1998                                              5,669       2,653,337                --        2,653,337
     1999                                              5,361       2,164,973                --        2,164,973
     2000                                                 --       1,698,488                --        1,698,488
     2001                                                 --       1,689,914                --        1,689,914
     Thereafter                                           --       5,913,232                --        5,913,232
                                                   ----------     -----------     -------------     ------------

         Total minimum lease payments                 19,291     $17,029,242     $     (83,444)   $  16,945,798
                                                                  ===========     =============     ============

Less amount representing interest at 9%                2,121
                                                   ----------

         Present value of net minimum
            capital lease payments                    17,170

Less current installments of obligations
     under capital leases                              7,058
                                                   ----------

         Obligations under capital leases,
            excluding current installments       $    10,112
                                                   ==========
</TABLE>

(6)      Related Party Transactions

         The Company  utilizes  its  network of  providers  to service  existing
         contracts  of the  Parent  in the area of  focused  psychiatric  review
         (FPR), health maintenance organizations (HMO), managed choice (MC), and
         network services (NS). The Company provides  behavioral health care and
         utilization  management services to the Parent's members at a capitated
         rate per  member  per  month.  The  Company  recorded  FPR  revenue  of
         approximately   $14.1  million  and  $14.5  million,   HMO  revenue  of
         approximately   $16.8   million  and  $9.5   million,   MC  revenue  of
         approximately  $27.8  million  and $19.4  million,  and NS  revenue  of
         approximately   $4.5  million  and  $4.3  million  in  1996  and  1995,
         respectively, from Parent company agreements. Related party receivables
         of   $2,957,865   and   $2,250,953  at  December  31,  1996  and  1995,
         respectively,  are due from the Parent for balances  paid to the Parent
         from customers of the Company.



                                       16

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995



         Certain  administrative  and  support  functions  of  the  Company  are
         provided by the Parent and its affiliates.  The consolidated  financial
         statements  reflect  allocated  charges for these  services  based upon
         measures  appropriate for the type and nature of the services provided.
         The year ended December 31, 1996, was the first full year following the
         Parent company sale of its  property/casualty  division. As a result of
         this sale, the methodology of allocating the administrative and support
         functions performed by the Parent changed  significantly.  Accordingly,
         the amount  allocated  to the Company for the year ending  December 31,
         1996 increased  significantly over what it had been in prior years. The
         Company was charged  $15,159,017  and $8,399,540  during 1996 and 1995,
         respectively, for these allocated charges.

         The Company also rents  furniture,  fixtures,  and  equipment  from the
         Parent.  The rental  expense for these  items  totaled  $1,062,068  and
         $782,691 for December  31, 1996 and 1995,  respectively.  Additionally,
         the Parent pays  certain  direct costs on behalf of the Company such as
         payroll and office  supplies  which the  Company  then  reimburses  the
         Parent.  Balances of  $2,454,957  and  $6,793,418  were  payable to the
         Parent at December 31, 1996 and 1995, respectively, for these allocated
         charges and direct costs.

(7)      Non-Compete Employment Agreement

         During 1990,  the Company  terminated the employment of the officer and
         former  sole  stockholder  of the  Company.  Pursuant  to the  terms of
         employment  and  noncompete  agreements,  the officer  received  annual
         compensation  and benefits  through June 9, 1996, paid ratably over the
         period.  During the year ended  December 31, 1996, the Company paid all
         remaining amounts due to this officer which amounted to $500,932.

(8)      Acquisition of Joint Venture

         On April 1, 1995, the Company purchased the remaining minority interest
         of Human Affairs of Alaska Joint Venture for  $1,000,000.  Of the total
         purchase price  $333,334 was paid at closing,  $333,333 was paid during
         1996,  and the remainder was paid in April 1997.  The  acquisition  has
         been  accounted  for  using the  purchase  method  of  accounting  and,
         accordingly,  the acquired interest in assets and liabilities is stated
         at estimated fair values. This transaction  resulted in costs in excess
         of net assets acquired of approximately $820,000.

                                       17

<PAGE>


           HUMAN AFFAIRS INTERNATIONAL, INCORPORATED AND SUBSIDIARIES
                    (A Wholly Owned Subsidiary of Aetna Inc.)

                   Notes to Consolidated Financial Statements

                           December 31, 1996 and 1995




         The Former Joint Venture  Partner  entered into  Personal  Services and
         Bonus  Agreements  with the Company  wherein the Former  Joint  Venture
         Partner has agreed to serve as an employee of the Company through March
         2000.

(9)      Commitments and Contingencies

         The Company is involved in certain legal actions  arising in the normal
         course of business.  After taking into  consideration  legal  counsel's
         evaluation  of such  actions,  management  is of the opinion that their
         outcome  will  not  have  a   significant   effect  on  the   Company's
         consolidated financial statements.

(10)     Subsequent Event

         On February 27, 1997,  $20,000,000 was paid to the Parent. This payment
         represented  a return of  capital  of  $11,092,000  and a  dividend  of
         $8,908,000.



                                       18

<PAGE>



Unaudited Pro Forma Consolidated Financial Information

         The Unaudited Pro Forma Consolidated  Financial Statements are based on
the historical presentation of the consolidated financial statements of Magellan
and the  historical  operating  results  and  financial  position  of  HAI.  The
Unaudited Pro Forma  Consolidated  Statements  of Operations  for the year ended
September  30,  1997  give  effect  to the  HAI  acquisition  as if it had  been
completed on October 1, 1996. The Unaudited Pro Forma Consolidated  Statement of
Operations  for the year  ended  September  30,  1997 also  gives  effect to the
Crescent Transactions (as hereinafter described), which were consummated on June
17, 1997. The Unaudited Pro Forma Consolidated Balance Sheet as of September 30,
1997 gives effect to the HAI  acquisition as if it had occurred on September 30,
1997. The pro forma consolidated  statements of operations and balance sheets do
not give effect to hospital  acquisitions  and  closures  (prior to the Crescent
Transactions)  during  fiscal  1997  as such  transactions  and  events  are not
considered material to the pro forma presentation.

         The Crescent Transactions resulted in (i) the sale of substantially all
of the  Company's  domestic  provider  real  estate and related  equipment  (the
"Purchased  Facilities")  to Crescent Real Estate Equities  Limited  Partnership
("Crescent")  for $417.2 million  (before costs  estimated at $16.0 million) and
the Crescent  Operating,  Inc. ("COI") warrants ("COI Warrants") to acquire 2.5%
of the outstanding  common stock of COI, (ii) the creation of Charter Behavioral
Health System, LLC ("CBHS"),  which is 50% owned by both the Company and COI and
engages in the  behavioral  healthcare  provider  business,  (iii) the Company's
entry into the healthcare franchising business and (iv) the issuance by Magellan
of 2,566,622  warrants to Crescent  and COI  (1,283,311  Warrants  each) with an
exercise  price of $30 per share.  CBHS  leases the  Purchased  Facilities  from
Crescent under a twelve-year  operating  lease  ("Facilities  Lease) (subject to
renewal) for $41.7 million annually, subject to adjustment, with a 5% escalator,
compounded annually. The Warrants issued to Crescent and COI have been valued at
$25  million in the  Company's  Balance  Sheet.  The  exercise  price of the COI
Warrants  is  $18.32.  The COI  Warrants  have  been  ascribed  no  value in the
Company's Balance Sheet as the COI Warrants have nominal fair value. The Company
accounts for its 50%  investment in CBHS under the equity method of  accounting,
which  significantly   reduces  the  revenues  and  related  operating  expenses
presented in the Company's  Statement of Operations.  Divested Operations in the
Pro Forma  Statements of  Operations  represent  the  businesses  that are being
operated by CBHS after the closing of the Crescent Transactions. CBHS includes a
significant  portion of the business  included in Magellan's  provider  business
segment and a portion of Magellan's  corporate overhead. A summary of Magellan's
provider business operations for the year ended September 30, 1997 is as follows
(in thousands):
<TABLE>
<CAPTION>

                                                                                    Earnings
                                                                                Before Interest,
                                                                                  Income Taxes
                                                                                      and                   Depreciation
                                                        Net Revenue            Minority Interest          and Amortization
                                                   ---------------------     ---------------------     ---------------------
<S>                                                <C>                       <C>                       <C>                 
CBHS                                               $            555,324      $             63,169      $             20,073
Hospital-based joint ventures                                    99,962                    13,081                     3,205
European hospitals                                               29,236                     6,975                     1,221
Other                                                            45,130                    31,249                        29
                                                   ---------------------     ---------------------     ---------------------
                                                   $            729,652      $            114,474      $             24,528
                                                   =====================     =====================     =====================
</TABLE>

         The Company incurred a loss before income taxes,  minority interest and
extraordinary  items of approximately  $59.9 million as a result of the Crescent
Transactions, which was recorded during the year ended September 30, 1997.









                                       19

<PAGE>



         The Unaudited Pro Forma Statements of Operations  presentation  assumes
that the net  proceeds  from the Crescent  Transactions  are  deposited  with no
investment return after payment of indebtedness  outstanding under the Company's
Revolving  Credit  Agreement  and  industrial  revenue  bonds for certain of the
Purchased Facilities.  The remaining net proceeds from the Crescent Transactions
are  assumed  to be  partially  utilized  to fund  the HAI  acquisition.  If the
remaining net proceeds  from the Crescent  Transactions  (after  funding the HAI
acquisition) were assumed to be invested at Magellan's  historic  temporary cash
investment  rate of 5.5%  for the  year  ended  September  30,  1997  pro  forma
consolidated  net income and net income per common share would be $47.4  million
and $1.61 (primary) and $1.57 (fully diluted),  respectively, for the year ended
September 30, 1997.

         The  Unaudited  Pro  Forma  Consolidated  Financial  Statements  do not
purport to be indicative  of the results that actually  would have been obtained
if the operations  had been conducted as presented and they are not  necessarily
indicative of operating results to be expected in future periods.  The Unaudited
Pro Forma Consolidated  Financial Statements and notes thereto should be read in
conjunction  with the  historical  consolidated  financial  statements and notes
thereto of Magellan,  which are incorporated  herein by reference and HAI, which
appear elsewhere herein.
























                                       20

<PAGE>

<TABLE>
<CAPTION>


                 PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS
                                   (Unaudited)
                      For The Year Ended September 30, 1997
                    (in thousands, except per share amounts)


                                                       Divested
                                                      Operations -
                                        Magellan       Crescent        Pro Forma         Pro Forma                       
                                      As Reported     Transactions    Adjustments        Combined            HAI         
                                     -------------- --------------  --------------    --------------   --------------    
<S>                                  <C>            <C>             <C>               <C>              <C>   
Net Revenue                          $   1,210,696  $    (555,324)  $      55,463 (1) $     710,835    $     116,736     
                                     -------------- --------------  --------------    --------------   --------------    

Salaries, cost of care and other
   operating expenses                      978,513       (426,862)          4,719 (2)       556,370           88,002     
Bad debt expense                            46,211        (42,720)              0             3,491                0     
Depreciation and amortization               44,861        (20,073)           (177)(3)        24,611              312     
Interest, net                               45,377         (3,233)         (6,833)(4)        35,311           (1,604)    
Stock option expense                         4,292              0               0             4,292                0     
Equity in loss of CBHS                       8,122              0          12,028 (5)        20,150                0     
Loss on Crescent Transactions               59,868              0         (59,868)(6)             0                0     
Unusual items                                  357         (2,500)              0            (2,143)               0     
                                     -------------- --------------  --------------    --------------   --------------    

                                         1,187,601       (495,388)        (50,131)          642,082           86,710     
                                     -------------- --------------  --------------    --------------   --------------    
Income before income taxes
     and minority interest                  23,095        (59,936)        105,594            68,753           30,026     
Provision for income taxes                   9,238        (23,974)         42,238 (7)        27,502           11,480     
                                     -------------- --------------  --------------    --------------   --------------    
Income before minority interest             13,857        (35,962)         63,356            41,251           18,546     
Minority interest                            9,102              0               0             9,102                0     
                                     -------------- --------------  --------------    --------------   --------------    

Net income                           $       4,755  $     (35,962)  $      63,356     $      32,149 (4)$      18,546     
                                     ============== ==============  ==============    ==============   ==============    

Average number of common
    shares outstanding - primary            29,474                                           29,474                      
                                     ==============                                   ==============                     

Average number of common
    shares outstanding-fully diluted        30,167                                           30,167                      
                                     ==============                                   ==============                     

Net income per common
     share - primary                 $        0.16                                 $           1.09 (4)                  
                                     ==============                                   ==============                     

Net income per common
     share - fully diluted           $        0.16                                 $           1.07 (4)                  
                                     ==============                                   ==============                     



                                     
                                       Pro Forma        Pro Forma                                                         
                                      Adjustments      Consolidated     
                                    --------------   ---------------    
                                                                        
Net Revenue                         $     (13,885)(8)$      813,686                                                            
                                    --------------   ---------------     
                                                                         
Salaries, cost of care and other                                         
   operating expenses                     (10,914)(9)       633,458      
Bad debt expense                                0             3,491      
Depreciation and amortization               3,948 (10)       28,871      
Interest, net                                   0            33,707      
Stock option expense                            0             4,292      
Equity in loss of CBHS                          0            20,150      
Loss on Crescent Transactions                   0                 0      
Unusual items                                   0            (2,143)     
                                    --------------   ---------------     
                                                                         
                                           (6,966)          721,826      
                                    --------------   ---------------     
Income before income taxes                                               
     and minority interest                 (6,919)           91,860      
Provision for income taxes                 (2,768)(11)       36,214      
                                    --------------   ---------------     
Income before minority interest            (4,151)           55,646      
Minority interest                               0             9,102      
                                    --------------   ---------------     
                                                                         
Net income                          $      (4,151)   $       46,544 (12) 
                                    ==============   ===============     
                                                                         
Average number of common                                                 
    shares outstanding - primary                             29,474      
                                                     ===============     
                                                                         
Average number of common                                                 
    shares outstanding-fully diluted                         30,167      
                                                     ===============     
                                                                         
Net income per common                                                    
     share - primary                                 $         1.58 (12) 
                                                     ===============     
                                                                         
                                                                         
 Net income per common                               $         1.54 (12) 
      share - fully diluted                          ===============     
                                     
                                     
</TABLE>





     See Notes to the Pro forma Consolidated Financial Statements(Unaudited)




                                       21

<PAGE>
<TABLE>
<CAPTION>



                      PRO FORMA CONSOLIDATED BALANCE SHEET
                                   (Unaudited)
                               September 30, 1997
                                 (In thousands)

                                     ASSETS

                                                               Magellan                  Pro Forma        Pro Forma
                                                              as Reported      HAI      Adjustments      Consolidated
                                                              -----------  ---------    -----------      ------------
<S>                                                           <C>          <C>          <C>              <C>            
Current Assets:
       Cash and cash equivalents ..........................   $ 372,878    $  36,256    $ (122,100)(13)  $   275,830
                                                                                            (4,500)(13)
                                                                                            (6,704)(13)

       Accounts receivable, net ...........................     107,998        6,771         --              114,769
       Other ..............................................      26,162          524          (495)(15)       26,191
                                                              ---------    ---------    ----------       -----------

            Total Current Assets ..........................     507,038       43,551      (133,799)          416,790

Assets Restricted for Settlement of Unpaid
       Claims and Other Long-Term Liabilities .............      87,532         --           --               87,532

Property and Equipment:
       Land ...............................................      11,667         --           --               11,667
       Buildings and improvements .........................      70,174          179         --               70,353
       Equipment ..........................................      63,719        2,286         1,535 (14)       67,540
                                                              ---------    ---------    ----------       -----------

                                                                145,560        2,465         1,535           149,560
       Accumulated depreciation ...........................     (37,038)      (2,224)        2,224 (14)      (37,038)
                                                              ---------    ---------    ----------       -----------

                                                                108,522          241         3,759           112,522
       Construction in progress ...........................         692         --           --                  692
                                                              ---------    ---------    ----------       -----------

                                                                109,214          241         3,759           113,214

Other long-term assets ....................................      20,893           21         --               20,914
Deferred income tax assets ................................       1,158           57           (57)(15)        1,158
Investment in CBHS ........................................      16,878         --           --               16,878
Goodwill, net .............................................     114,234          615        82,673 (16)      197,522
Other intangible assets, net ..............................      38,673         --          20,668 (16)       59,341
                                                              ---------    ---------    ----------       -----------

                                                              $ 895,620    $  44,485    $  (26,756)      $   913,349
                                                              =========    =========    ==========       ===========

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
       Accounts payable ...................................   $  45,346        4,530    $   (3,894)(17)  $    45,982
       Accrued liabilities ................................     170,429       16,729           352 (18)      187,510
       Current maturities of long-term debt and
           capital lease obligations ......................       3,601            7         --                3,608
                                                              ---------    ---------    ----------       -----------

            Total Current Liabilities .....................     219,376       21,266        (3,542)          237,100

Long-term debt and capital lease obligations ..............     391,693            3         --              391,696
Reserve for unpaid claims .................................      49,113         --           --               49,113
Deferred credits and other long-term liabilities ..........      16,110            2         --               16,112
Minority interest .........................................      61,078         --           --               61,078
Commitments and contingencies
Stockholders' equity:
       Common stock .......................................       8,361            1            (1)(19)        8,361
       Additional paid-in capital .........................     340,645         --           --              340,645
       Accumulated deficit ................................    (129,955)      23,213       (23,213)(19)     (129,955)
       Warrants outstanding ...............................      25,050         --           --               25,050
       Common stock in treasury ...........................     (82,731)        --           --              (82,731)
       Cumulative foreign currency adjustments ............      (3,120)        --           --               (3,120)
                                                              ---------    ---------    ----------       -----------

            Total stockholders' equity ....................     158,250       23,214       (23,214)          158,250
                                                              ---------    ---------    ----------       -----------

                                                              $ 895,620    $  44,485    $  (26,756)      $   913,349
                                                              =========    =========    ==========       ===========

</TABLE>
 
    See Notes to the Pro Forma Consolidated Financial Statements(Unaudited)




                                       22

<PAGE>



              NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS

(1)  The pro forma adjustment to net revenue  represents  Franchise Fees paid to
     Magellan by CBHS  pursuant to the Master  Franchise  Agreement  for the 259
     days ended June 16, 1997. As part of the Crescent Transactions, CBHS leases
     the Purchased  Facilities  from Crescent  under the Facilities  Lease.  The
     annual base rent under the  Facilities  Lease begins at $40 million for pro
     forma  purposes  and  escalates  5%  per  year,  compounded  annually.  The
     Subordination  Agreement between the Company and Crescent provides that the
     Franchise Fees are  subordinated  in payment to the $40 million annual base
     rent, 5% escalator rent and the additional rent under the Facilities  Lease
     due  Crescent,  in certain  circumstances.  The Company will be entitled to
     pursue all available remedies for breach of the Master Franchise Agreement,
     except  that the  Company  does not have the right to take any action  that
     could reasonably be expected to force CBHS into bankruptcy or receivership.
     If CBHS  encounters a decline in earnings or financial  difficulties,  such
     amounts due Crescent will be paid before any Franchise  Fees are paid.  The
     Company receives from CBHS initial Franchise Fees of $78.3 million, subject
     to increase. The Company provides CBHS with an array of services, including
     advertising and marketing  assistance,  risk management services,  outcomes
     monitoring, consultation with respect to matters relating to CBHS' business
     in which  the  Company  has  expertise  and the  Company's  operation  of a
     telephone call center utilizing the "1-800-CHARTER" telephone number.

(2)  The pro  forma  adjustments  to  salaries,  supplies  and  other  operating
     expenses  represent  fees  payable to CBHS of $7.6  million for the 259 day
     period ended June 16, 1997 for the management of hospital-based  businesses
     controlled by Magellan that are less than wholly-owned by Magellan,  net of
     reductions  in  corporate  overhead of $2.9  million for the 259 day period
     ended June 16,  1997,  related to the  transfer of existing  personnel  and
     functions between Magellan and CBHS. Magellan personnel transferred to CBHS
     and  incremental   corporate  overhead  occurred  primarily  in  the  human
     resources, legal and finance and accounting functions.

(3)  The pro forma adjustment to depreciation  and  amortization  represents the
     amortization expense related to intangible assets that became impaired as a
     result of the Crescent Transactions.

(4)  The pro forma adjustment to interest expense, net, represents reductions in
     interest expense as a result of paying off the outstanding borrowings under
     the Revolving  Credit  Agreement  with no assumed  investment of the excess
     proceeds from the Crescent  Transactions.  If the excess  proceeds from the
     Crescent  Transactions  were assumed to be invested at Magellan's  historic
     temporary  cash  investment  rate of 5.5% for the year ended  September 30,
     1997,  pro forma  combined net income and net income per common share would
     be  $36.8   million  and  $1.25   (primary)   and  $1.22  (fully   diluted)
     respectively, for the year ended September 30, 1997.

(5)  The pro forma  adjustments to equity in loss of CBHS  represent  Magellan's
     percentage  interest  (50%) in CBHS' pro forma  loss for the 259 day period
     ended June 16, 1997.  Magellan's  investment in CBHS is accounted for under
     the  equity  method of  accounting.  The  timing  and terms of a 10% equity
     interest grant to CBHS  management will be addressed by the governing board
     of CBHS at a later date. The Company anticipates that the granting of a 10%
     equity  interest to CBHS  management will result in equally shared dilution
     of ownership  interest  between Magellan and COI and that the grant will be
     at an  exercise  price at least  equal to the fair value of the  underlying
     equity at the date of grant, which will not result in compensation  expense
     under the provisions of APB Opinion 25.  Magellan's  ownership  interest in
     CBHS  is  reflected  at its  initial  ownership  percentage  of 50% for the
     purposes of computing  pro forma equity in loss of CBHS.  The Condensed Pro
     Forma Statements of Operations are as follows (in thousands):

                                       23

<PAGE>
<TABLE>
<CAPTION>



                                                            For the Year Ended
                                                            September 30, 1997
                                          ------------------------------------------------------------------------
                                                            CBHS
                                                         Operations -
                                                        106 Days Ended
                                           Divested      September 30,   Pro Forma        Pro Forma
STATEMENTS OF OPERATIONS:                 Operations        1997        Adjustments       Consolidated
                                          ----------    --------------  -----------       ------------
<S>                                       <C>           <C>             <C>               <C>   

Net revenue                               $  555,324    $   213,730     $     2,565 (i)   $    771,619
                                          -----------   ------------    ------------      ------------

Salaries, supplies and other
  operating expenses                         426,862        210,277         103,723 (ii)       740,862
Bad debt expense                              42,720         17,437              --             60,157
Depreciation and amortization                 20,073            668         (17,333)(iii)        3,408
Interest, net                                  3,233          1,592             167 (iv)         4,992
Unusual items                                  2,500             --              --              2,500
                                          -----------   ------------    ------------      ------------
                                             495,388        229,974          86,557            811,919
                                          -----------   ------------    ------------      ------------
Income (loss) before income taxes             59,936        (16,244)        (83,992)           (40,300)
Provision for income taxes                    23,974             --         (23,974)(v)             --
                                          -----------   ------------    ------------      ------------

     Net income (loss)                    $   35,962    $   (16,244)    $   (60,018)      $    (40,300)
                                          ===========   ============    ============      ============
</TABLE>

(i)  Fees  from  Magellan  for  the  management  of  hospital-based   businesses
     controlled  by Magellan  that are less than  wholly-owned  by Magellan (See
     Note 2) less  non-recurring  collection  fees  receivable  from Magellan of
     approximately $5.0 million during the 106 days ended September 30, 1997.

(ii) The pro  forma  adjustments  to  salaries,  supplies  and  other  operating
     expenses are as follows (000's):

     Franchise Fees (See Note 1)                      $               55,463
     Rent Expense under the Facilities Lease                          44,665
     Additional Corporate Overhead (See Note 2)                        3,595
                                                      -----------------------
                                                      $              103,723
                                                      =======================

(iii)The pro forma adjustment to depreciation  and  amortization  represents the
     decrease in  depreciation  expense as a result of the sale of property  and
     equipment  to Crescent  by Magellan  and the  elimination  of  amortization
     expense related to impaired intangible assets.

(iv) The pro forma adjustment to interest, net, is computed as follows (000's):

     Interest expense on serviced IRBs                $               (3,233)
     Interest expense for new borrowings                               3,400
                                                      -----------------------
                                                      $                  167
                                                      =======================
     Average borrowings                                               60,000
     Borrowing rate                                                        8.%
                                                      -----------------------
                      Annual Interest                 $                4,800
                                                      =======================
                    259 Days Interest                 $                3,400
                                                      =======================

(v)  CBHS  is a  limited  liability  company.  Accordingly,  no tax  benefit  is
     presented as the tax  consequences  of CBHS  ownership will pass through to
     Magellan and COI.






                                       24

<PAGE>



(6)  The pro forma  adjustment to Loss on Crescent  Transactions  represents the
     elimination of the non-recurring losses incurred by Magellan as a result of
     consummating the Crescent Transactions on June 17, 1997.

(7)  The pro forma  adjustments to provision for income taxes  represent the tax
     expense  related to the pro forma  adjustments  at the  Company's  historic
     effective tax rate of 40%.

(8)  The  pro  forma  adjustments  to  net  revenue  represents  the  effect  of
     renegotiated  contractual rates between HAI and AUSHC as a direct result of
     the acquisition of HAI by Magellan.

(9)  The pro forma  adjustments  to salaries,  cost of care and other  operating
     expenses  represents the elimination of AUSHC's overhead  allocation to HAI
     of $17.2 million for the year ended  September 30, 1997, less bonus expense
     of $1.1 million for the year ended  September 30, 1997,  that was reflected
     in AUSHC's  financial  statements  for HAI's  benefit and  expenses of $5.1
     million  that  HAI will  incur to  absorb  corporate  functions  previously
     performed by AUSHC. The AUSHC corporate  functions absorbed by HAI include,
     but are not limited to, information technology,  human resources and legal.
     Magellan does not anticipate incurring any additional corporate overhead as
     a result of the HAI acquisition.

(10) The pro forma  adjustments to depreciation and amortization  represents (i)
     the change in the depreciation of HAI equipment  relating to the adjustment
     of HAI equipment to fair value and (ii) the change in amortization  expense
     which resulted from the  adjustments to intangible  assets recorded as part
     of the HAI purchase price  allocation.  The  calculation of the adjustments
     are summarized below (in thousands):

         Estimated Fair Value of Property and Equipment               $   4,000
         Estimated Useful Life (Years)                                /       5
                                                                      ---------
                  Estimated Annual Depreciation                       $     800
                                                                      =========
         Estimated Goodwill                                           $  83,288
         Estimated Useful Life                                        /      40
                                                                      ---------
                  Estimated Annual Amortization                           2,082
                                                                      =========
         Estimated Other Intangible Assets (primarily client lists)   $  20,668
         Estimated Useful Life                                        /      15
                                                                      ---------
                  Estimated Annual Amortization                       $   1,378
                                                                      =========

         Total Estimated Depreciation and Amortization                $   4,260
         HAI Historical Depreciation and Amortization                 $    (312)
                                                                      ---------
                  Pro Forma Adjustment                                $   3,948
                                                                      =========
         The  allocation of the HAI purchase  price to  equipment,  goodwill and
         identifiable  intangible  assets above and  estimated  useful lives are
         based on the  Company's  preliminary  valuations,  which are subject to
         change upon receiving independent appraisals for such assets.

         Subsequent to the consummation of the HAI acquisition, the Company may
         be required to make Contingent Payments during the first five Contract
         Years to AUSHC of up to an aggregate of $300 million.  The  Contingent
         Payments,  if any,  would be recorded as  goodwill  and client  lists,
         which would result in estimated additional annual amortization expense
         of  $11  million  to  $13  million  in  future  periods.  The  maximum
         Contingent Payment attributable to each Contract Year is $60 million.

(11)     The pro forma  adjustments to provision for income taxes  represent the
         tax expense  related to the pro forma  adjustments  at the  Company's 
         historic effective tax rate of 40%.


                                       25

<PAGE>



(12)     If the remaining excess proceeds from the Crescent  Transactions (after
         the HAI acquisition) were assumed to be invested at Magellan's historic
         temporary cash investment  rate, pro forma  consolidated net income and
         net income per common share would be $48.0 million and $1.63  (primary)
         and $1.59 (fully diluted),  respectively,  for the year ended September
         30, 1997.

(13)     The pro forma  adjustments to cash and cash  equivalents  represent (i)
         the  use of cash on hand to  fund  the HAI  purchase  price  of  $122.1
         million  and  related  transaction  costs  of  $4.5  million  and  (ii)
         estimated working capital  settlement  payment to AUSHC as agreed to by
         the parties in the Stock Purchase Agreement, as amended.

(14)     The pro forma  adjustments  to equipment and  accumulated  depreciation
         represents the changes necessary to value HAI equipment at fair value.

(15)     The pro forma  adjustment to other current  assets and deferred  income
         tax assets  represents the elimination of HAI tax obligations that will
         remain with AUSHC after the closing.

(16)     The pro forma  adjustments  to  goodwill  and other  intangible  assets
         represents  additions to effect for the HAI purchase price  allocation.
         See  Note  10 for  further  information  regarding  the  nature  of HAI
         intangible assets.

(17)     The  pro  forma   adjustments  to  accounts   payable   represents  the
         elimination of related party balances between HAI and AUSHC.

(18)     The pro forma  adjustment  to accrued  liabilities  represents  certain
         liabilities  assumed by  Magellan  from AUSHC  that were  reflected  in
         AUSHC's  financial  statements,  including accrued vacation and accrued
         incentive,  offset by the  elimination  of current income taxes payable
         that will remain with AUSHC after the closing.

(19)     The pro forma  adjustments  to common  stock  and  accumulated  deficit
         represent  the  elimination  of the net balance of HAI's  stockholder's
         equity.


                                       26

<PAGE>



Exhibits

2(a) Stock  Purchase  Agreement,  dated August 5, 1997,  between the Company and
     Aetna Insurance Company of Connecticut.

2(b) Master Service Agreement,  dated August 5, 1997, between the Company, Aetna
     U.S. Healthcare, Inc. and Human Affairs International, Incorporated.

2(c) Amendment to Stock Purchase Agreement,  dated December 4, 1997, between the
     Company and Aetna Insurance Company of Connecticut.

2(d) First  Amendment  to Master  Services  Agreement,  dated  December 4, 1997,
     between  the  Company,  Aetna  U.S.  Healthcare,  Inc.  and  Human  Affairs
     International, Incorporated.

23(a) Consent of KPMG Peat Marwick LLP.

99(a) Press release, dated August 5, 1997.

99(b) Press release, dated December 5, 1997




                                       27

<PAGE>


                                    SIGNATURE



         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.



Dated: December 17, 1997                         Magellan Health Services, Inc.
                                                  
                                                 By: /s/ Craig L. McKnight
                                                 ------------------------------
                                                 Executive Vice President and
                                                 Chief Financial Officer


                                       28


                                                                Execution Copy
- ------------------------------------------------------------------------------












                            Stock Purchase Agreement

                           dated as of August 5, 1997

                                     between

                     Aetna Insurance Company of Connecticut

                                       and

                         Magellan Health Services, Inc.

















- ------------------------------------------------------------------------------




<PAGE>



                                Table of Contents

                                                                            Page

Introduction...................................................................1

                                    ARTICLE I

                                   Definitions

1.1. Definitions...............................................................1
1.2. Defined Terms.............................................................3

                                   ARTICLE II

                                 Closing Matters

2.1. Closing Payment...........................................................4
2.2. Closing...................................................................4
2.3. Closing Balance Sheet.....................................................5
2.4. Adjustment of Closing Payment.............................................6

                                   ARTICLE III

                    Representations and Warranties of Seller

3.1. Corporate Existence and Power.............................................7
3.2. Corporate Authorization...................................................7
3.3. Governmental Authorization; Consents......................................7
3.4. Non-Contravention.........................................................8
3.5. Capitalization............................................................8
3.6. Subsidiaries..............................................................8
3.7. Financial Statements......................................................9
3.8. Properties................................................................9
3.9. No Undisclosed Material Liabilities......................................10
3.10. Litigation..............................................................10
3.11. Material Contracts......................................................10
3.12. Compliance with Laws....................................................12
3.13. Brokers' Fees...........................................................12
3.14. Intellectual Property...................................................12
3.15. Permits and Licenses....................................................12
3.16. Labor Matters...........................................................12
3.17. Insurance Policies......................................................13
3.18. Absence of Certain Commercial Practices.................................13
3.19. Assets..................................................................13
3.20. No Adverse Changes......................................................14
3.21. Disclosure..............................................................14





<PAGE>



                                   ARTICLE IV

                   Representations And Warranties Of Purchaser

4.1. Organization and Existence...............................................14
4.2. Corporate Authorization..................................................14
4.3. Governmental Authorization; Consents.....................................15
4.4. Non-Contravention........................................................15
4.5. Brokers' Fees............................................................15
4.6. Financing................................................................15
4.7. Purchase for Investment..................................................15
4.8. Litigation...............................................................15
4.9. Inspections..............................................................16

                                    ARTICLE V

                               Covenants Of Seller

5.1. Conduct of the Company...................................................16
5.2. Access to Information; Disclosure Supplements............................18
5.3. Notices of Certain Events................................................19
5.4. Resignations.............................................................19
5.5. No Shop..................................................................19
5.6. Contributed Assets.......................................................19

                                   ARTICLE VI

                             Covenants Of Purchaser

6.1. Confidentiality..........................................................20
6.2. Access...................................................................20
6.3.  Insurance...............................................................20
6.4. Use of Names.............................................................20
6.5. Headquarters Lease.......................................................21
6.6. Retention Arrangements...................................................21

                                   ARTICLE VII

                            Covenants Of Both Parties

7.1. Reasonable Efforts.......................................................21
7.2. Certain Filings..........................................................21
7.3. Public Announcements.....................................................21
7.4. Related Agreements.......................................................22
7.5. Home Office Lease........................................................22
7.6. Co-Located Space.........................................................22
7.7. Transition Services Standard.............................................22

                                       ii


<PAGE>



                                  ARTICLE VIII

                                   Tax Matters

8.1. Tax Definitions..........................................................22
8.2. Tax Representations......................................................23
8.3. Elections................................................................24
8.4. Termination of Existing Tax Sharing Agreements...........................25
8.5. Tax Returns..............................................................25
8.6. Other Tax Matters........................................................26
8.7. Cooperation on Tax Matters...............................................26
8.8. Certain Disputes.........................................................26
8.9. Tax Indemnification......................................................27

                                   ARTICLE IX

                                Employee Benefits

9.1. Employee Benefits Definitions............................................29
9.2. ERISA Representations....................................................29
9.3. Employees................................................................31
9.4. Pension Plan.............................................................31
9.5. Individual Account Plan..................................................31
9.6. Other Employee Plans and Benefit Arrangements............................31
9.7. Plans Following the Closing..............................................32
9.8. Medical and Dental Insurance Coverage....................................33
9.9. Assumption of Liabilities................................................33
9.10. Third Party Beneficiaries...............................................34

                                    ARTICLE X

                              Conditions To Closing

10.1. Conditions to Obligations of Each Party.................................34
10.2. Conditions to Obligation of Purchaser...................................34
10.3. Conditions to Obligation of Seller......................................36

                                   ARTICLE XI

                            Survival; Indemnification

11.1. Survival................................................................37
11.2. Indemnification.........................................................37
11.3. Procedures; Exclusivity.................................................39
11.4. Investigation...........................................................39



                                       iii


<PAGE>



                                   ARTICLE XII

                                   Termination

12.1. Grounds for Termination.................................................39
12.2. Effect of Termination...................................................40

                                  ARTICLE XIII

                                  Miscellaneous

13.1. Notices.................................................................40
13.2. Amendments; No Waivers..................................................41
13.3. Expenses................................................................41
13.4. Successors and Assigns..................................................41
13.5. Governing Law...........................................................41
13.6. Submission to Jurisdiction..............................................41
13.7. Waiver of Jury Trial....................................................42
13.8. Specific Performance....................................................42
13.9. Counterparts; Effectiveness.............................................42
13.10. Entire Agreement.......................................................42
13.11. Severability...........................................................42
13.12. Captions; Construction.................................................42
13.13. Third Party Beneficiaries..............................................42
13.14. No Set-off.............................................................42


                                    Exhibits

Exhibit A                  Form of Guaranty of Aetna U.S. Healthcare Inc.
Exhibit B                  Form of Master Agreement
Exhibit C                  Form of Transition Services Agreement
Exhibit D                  Form of Non-Competition Covenant















                                       iv


<PAGE>




          Stock   Purchase   Agreement,   dated  as  of   August  5,  1997  (the
"Agreement"),  between Aetna  Insurance  Company of  Connecticut,  a Connecticut
insurance corporation ("Seller"), and Magellan Health Services, Inc., a Delaware
corporation ("Purchaser").

                                  Introduction

             Seller is the  owner of  10,000  shares  (the  "Shares")  of common
stock,  no par value  (the  "Common  Stock"),  of Human  Affairs  International,
Incorporated, a Utah corporation (the "Company"), constituting all of the issued
and outstanding capital stock of the Company;

             Purchaser  desires to  purchase  the Shares from  Seller,  and
Seller  desires to sell the Shares to  Purchaser,  upon the terms and subject to
the conditions set forth in this Agreement;

             In  consideration  of the  foregoing and the  representations,  
warranties, covenants,  agreements and conditions  contained in this Agreement,
the parties agree as follows:

                                    ARTICLE I

                                   Definitions

1.1. Definitions.  (a) The following  terms, as used herein,  have the following
     meanings:

     "Affiliate"  means,  with  respect to any  Person,  any Person  directly or
indirectly  controlling,  controlled by, or under common control with such other
Person; provided that neither the Company nor any Subsidiary shall be considered
an Affiliate of Seller.

     "Balance Sheet" means the consolidated balance sheet of the Company and its
consolidated Subsidiaries as of June 30, 1997 referred to in Section 3.7.

     "Balance Sheet Date" means June 30, 1997.

     "Base Stockholder's Equity" means $15,500,000.00.

     "Closing  Balance Sheet" means a consolidated  balance sheet of the Company
and  its  consolidated  Subsidiaries  as at the  close  of  business  on the day
immediately preceding the Closing Date, together with the notes thereto.

     "Closing Date" means the date of the Closing.

     "Closing Stockholder's Equity" means the consolidated  stockholder's equity
of the Company and its consolidated  Subsidiaries as of the close of business on
the day  immediately  preceding  the  Closing  Date as set forth on the  Closing
Balance Sheet.

     "Disclosure  Schedule" means the disclosure schedule delivered by Seller to
Purchaser simultaneously with the execution of this Agreement.

     "Final  Stockholder's  Equity"  means Closing  Stockholder's  Equity (i) as
shown in Seller's


<PAGE>



calculation  delivered  pursuant to Section 2.3(a) if no notice of  disagreement
with respect  thereto is duly  delivered  pursuant to Section  2.3(b) or (ii) if
such a notice of disagreement  is duly  delivered,  (A) as agreed by the parties
pursuant to Section 2.3(c) or (B) in the absence of such agreement,  as shown in
the independent  accountant's  calculation delivered pursuant to Section 2.3(c);
provided  that Final  Stockholder's  Equity  shall not in any event be more than
Seller's  calculation  of Closing  Stockholder's  Equity  delivered  pursuant to
Section 2.3(a) nor less than  Purchaser's  calculation of Closing  Stockholder's
Equity delivered pursuant to Section 2.3(b).

     "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of 1976.

     "Intellectual   Property   Right"  means  any   trademark,   service  mark,
registration  thereof or  application  for  registration  therefor,  trade name,
invention,  patent,  patent  application,  trade  secret,  know-how,  copyright,
copyright  registration,  application for copyright  registration,  or any other
similar type of proprietary intellectual property right.

     "knowledge  of  Seller"  means the  actual  knowledge,  on the date of this
Agreement,  if any, of any of the officers,  directors or employees of Seller or
the Company set forth in Section 1.1 of the Disclosure Schedule.

     "Lien"  means,  with  respect  to any asset  (including  the  Shares),  any
mortgage,  lien,  pledge,  charge,  security  interest,  option,  restriction on
transfer or other encumbrance of any kind in respect of such asset.

     "Person" means an  individual,  a  corporation,  a  partnership,  a limited
liability  company,  an  association,  a trust or other entity or  organization,
including a government or political  subdivision or an agency or instrumentality
thereof.

     "Purchaser  Disclosure Schedule" means the disclosure schedule delivered by
Purchaser to Seller simultaneously with the execution of this Agreement.

     "Subsidiary"  means  any  entity  of which  securities  or other  ownership
interests  having  ordinary  voting  power to elect a  majority  of the board of
directors or other persons  performing  similar  functions are owned directly or
indirectly by the Company.

     (b)  Each of the  following  terms is  defined  in the  Section  set  forth
          opposite such term:


     Term                                                       Section
     ----                                                       ------- 
     Accounting Referee                                         8.8
     Benefit Arrangement                                        9.1
     Closing                                                    2.2
     Closing Payment                                            2.1
     Code                                                       8.1
     Combined State Tax                                         8.1
     Common Stock                                               Introduction
     Company                                                    Introduction
     Company Securities                                         3.5
     Contracts                                                  3.11


                                        2

<PAGE>




     Contributed Assets                                         3.19
     Customer Contracts                                         3.11
     Damages                                                    11.2
     De Minimis Claims                                          11.2
     Direct Rollover                                            9.5
     Employee Plans                                             9.2
     ERISA                                                      9.1
     ERISA Affiliate                                            9.1
     Federal Taxes                                              8.1
     Guarantor                                                  10.2(g)
     Indemnified Party                                          11.2
     Indemnifying Party                                         11.2
     Individual Account Plan                                    9.1
     Headquarters Lease                                         6.5
     Licenses                                                   3.15
     Master Agreement                                           10.2(g)
     Multiemployer Plan                                         9.1
     PBGC                                                       9.1
     Pension Plan                                               9.1
     Post-Closing Tax Period                                    8.1
     Pre-Closing Tax Period                                     8.1
     Purchaser Plan                                             9.5
     Purchaser Indemnified Parties                              11.2
     Related Transaction Agreements                             7.4
     Retention Arrangements                                     6.6
     Returns                                                    8.2
     Seller Indemnified Parties                                 11.2
     Shares                                                     Introduction
     Subsidiary Securities                                      3.6
     Tax                                                        8.1
     Tax Indemnification Period                                 8.1
     Tax Sharing Agreement                                      8.1
     Title IV Plan                                              9.1
     Transferred Employees                                      9.3
     Transition Services Agreement                              10.2(i)

     1.2.  Defined  Terms.  (a) All  references in this Agreement to "Articles",
"Sections" and other subdivisions are to the designated  Articles,  Sections and
other  subdivisions  of  this  Agreement.  The  words  "herein",   "hereof"  and
"hereunder" and other words of similar import refer to this Agreement and not to
any particular Article, Section or other subdivision.

     (b) In  this  Agreement  in the  computation  of  periods  of  time  from a
specified  date to a later  specified  date,  the word  "from"  means  "from and
including" and the words "to" and "until" each mean "to but excluding".

     (c) A reference  to  "including"  in this  Agreement  shall mean  including
without limitation.

                                        3

<PAGE>



     (d) A reference to a Person in this  Agreement  includes its successors and
permitted assigns (if any).

     (e) A reference  to any  agreement or contract in this  Agreement  includes
permitted amendments and supplements.

     (f) A  reference  to a law in this  Agreement  includes  any  amendment  or
modification to such law and any rules or regulations issued thereunder.

                                   ARTICLE II

                                 Closing Matters

     2.1 Closing  Payment.  Upon the terms and subject to the conditions of this
Agreement,  Seller agrees to sell to Purchaser, and Purchaser agrees to purchase
from Seller,  the Shares at the Closing free and clear of any and all Liens. The
consideration  payable at Closing  for the Shares  (the  "Closing  Payment")  is
$122,100,000 in cash, subject to adjustment as provided in Section 2.4.

     2.2 Closing.  The  consummation  of the  transactions  contemplated by this
Agreement (the "Closing") shall take place five business days following the date
on which all  conditions to Closing have been satisfied or waived at 10:00 a.m.,
at the offices of Howard, Darby & Levin, 1330 Avenue of the Americas,  New York,
New York,  or at such other time or at such other place as Purchaser  and Seller
may agree. At the Closing,

     (a)  Purchaser shall deliver to Seller:

     (i) the Closing Payment, by wire transfer of immediately available funds to
such  account as Seller may direct by written  notice  delivered to Purchaser by
Seller at least two business days prior to the Closing Date; and

     (ii) such other documents and certificates duly executed as may be required
to be delivered by Purchaser pursuant to the terms of this Agreement  (including
Section 10.3).

     (b) Seller shall deliver to Purchaser:

     (i)  certificates  for the Shares  duly  endorsed or  accompanied  by stock
powers  duly  endorsed  in blank,  with any  required  transfer  stamps  affixed
thereto; and

     (ii) such other documents and certificates duly executed as may be required
to be delivered  by Seller  pursuant to the terms of this  Agreement  (including
Section 10.2).

     2.3 Closing  Balance Sheet.  (a) (i) As promptly as  practicable  after the
Closing  Date,  Seller will cause the Closing  Balance  Sheet to be prepared and
will prepare a certificate based on such

                                        4

<PAGE>



Closing  Balance Sheet setting forth its  calculation  of Closing  Stockholder's
Equity. As promptly as practicable, but no later than 90 days, after the Closing
Date,  Seller will cause the Closing Balance Sheet together with its certificate
to be delivered to Purchaser.  Except as otherwise  provided in subsection  (ii)
below,  the  Closing  Balance  Sheet  shall (x) fairly  present in all  material
respects the consolidated financial position of the Company and its consolidated
Subsidiaries  as at the close of business on the day  immediately  preceding the
Closing Date in accordance with generally accepted accounting principles applied
on a basis  consistent  with those used in the  preparation of the Balance Sheet
(including  those  matters   discussed  in  Section  3.7(b)  of  the  Disclosure
Schedule), subject to normal, historically consistent year-end adjustments, none
of which  will be  material  in nature,  (y)  include  line items  substantially
consistent  with those in the Balance  Sheet and (z) be  prepared in  accordance
with accounting  policies and practices applied on a basis consistent with those
used in the preparation of the Balance Sheet.

     (ii)  Prior to the date of the  Closing  Balance  Sheet,  Seller  shall (i)
determine  the amount of all federal  and state  income  taxes (or a  reasonable
estimate  thereof) which (but for the last sentence of this paragraph)  would be
accrued as a current or deferred liability under generally  accepted  accounting
principles  ("Closing Accrued Tax Liabilities") on the Closing Balance Sheet and
(ii)  determine the amount (or reasonable  estimate  thereof) of all federal and
state current or deferred income tax assets ("Closing Accrued Tax Assets") which
would be recorded as an asset under generally accepted accounting  principles on
the  Closing  Balance  Sheet.  Prior to the date of the Closing  Balance  Sheet,
Seller  shall  assume all the Closing  Accrued Tax  Liabilities  and cause to be
transferred  to Seller (by dividend or otherwise)  the amount of all the Closing
Accrued  Tax Assets;  it being  understood  and agreed that the Closing  Balance
Sheet shall not contain any balances relating to any state or federal income tax
current or deferred assets or liabilities.

     If the Closing  Accrued  Tax  Liabilities  exceed the  Closing  Accrued Tax
Assets,  the difference shall be referred to as the "Net Accrued Tax Liability";
if the Closing  Accrued Tax Assets exceed the Closing  Accrued Tax  Liabilities,
the  difference  shall be  referred to as the "Net  Accrued Tax  Assets." In the
event the above determination  results in Net Accrued Tax Liability,  the Seller
shall be entitled to cause the Company, prior to the date of the Closing Balance
Sheet,  to dividend  cash to the Seller (or transfer to the Seller by adjustment
of  intercompany  accounts) in the amount of Net Accrued Tax  Liability.  In the
event the above  determination  results in Net Accrued  Tax  Assets,  the Seller
shall contribute to the Company, prior to the date of the Closing Balance Sheet,
cash (or  transfer to the Company by  adjusting  intercompany  accounts)  in the
amount of Net Accrued Tax Assets.

     (b)  If  Purchaser   disagrees   with  Seller's   calculation   of  Closing
Stockholder's Equity delivered pursuant to Section 2.3(a), Purchaser may, within
30 days after delivery of the documents referred to in Section 2.3(a), deliver a
notice to Seller disagreeing with such calculation and setting forth Purchaser's
calculation of such amount.  Any such notice of disagreement shall specify those
items or amounts as to which Purchaser disagrees,  and Purchaser shall be deemed
to have agreed with all other items and amounts contained in the Closing Balance
Sheet and the calculation of Closing  Stockholder's Equity delivered pursuant to
Section 2.3(a).

     (c) If a notice of disagreement shall be duly delivered pursuant to Section
2.3(b), the parties shall, during the 15 days following such delivery, use their
best efforts to reach  agreement  on the  disputed  items or amounts in order to
determine, as may be required, the amount of Closing Stockholder's Equity, which
amount shall not be more than the amount thereof shown in Seller's

                                        5

<PAGE>



calculation  delivered  pursuant  to  Section  2.3(a)  nor less than the  amount
thereof shown in Purchaser's  calculation  delivered pursuant to Section 2.3(b).
If,  during such period,  the parties are unable to reach such  agreement,  they
shall promptly  thereafter  cause an independent  accounting  firm of nationally
recognized standing  reasonably  satisfactory to Seller and Purchaser (who shall
not have any material relationship with Seller or Purchaser), promptly to review
this  Agreement and the disputed items or amounts for the purpose of calculating
Closing  Stockholder's  Equity.  In making such  calculation,  such  independent
accountants  shall  consider only those items or amounts in the Closing  Balance
Sheet or  Seller's  calculation  of  Closing  Stockholder's  Equity  as to which
Purchaser has disagreed.  Such independent  accountants  shall deliver to Seller
and  Purchaser,  as  promptly  as  practicable,  a  report  setting  forth  such
calculation. Such report shall be final and binding upon the parties hereto. The
cost of such  review and report  shall be borne (i) by Seller if the  difference
between Final Stockholder's Equity and Closing Stockholder's Equity as set forth
in Seller's  calculation of Closing  Stockholder's  Equity delivered pursuant to
Section 2.3(a) is greater than the difference between Final Stockholder's Equity
and Closing  Stockholder's  Equity as set forth in  Purchaser's  calculation  of
Closing  Stockholder's  Equity  delivered  pursuant to Section  2.3(b),  (ii) by
Purchaser if the first such  difference is less than the second such  difference
and (iii) otherwise equally by Seller and Purchaser.

     (d)The  parties  hereto  agree  that they  will,  and agree to cause  their
respective  independent  accountants and the Company to, cooperate and assist in
the  preparation  of the Closing  Balance Sheet and the  calculation  of Closing
Stockholder's  Equity and in the  conduct of the review  referred  to in Section
2.3(c),  including  without  limitation  the  making  available  to  the  extent
necessary of books, records, work papers and personnel.

     2.4 Adjustment of Closing Payment. (a) If Base Stockholder's Equity exceeds
Final Stockholder's Equity by at least $500,000,  Seller shall pay to Purchaser,
as an  adjustment  to the Closing  Payment,  in the manner and with  interest as
provided  in  Section  2.4(b),  the amount by which  Base  Stockholder's  Equity
exceeds Final Stockholder's  Equity. If Final Stockholder's  Equity exceeds Base
Stockholder's Equity by at least $500,000, Purchaser shall pay to Seller, in the
manner and with  interest  as provided  in Section  2.4(b),  the amount by which
Final Stockholder's  Equity exceeds Base Stockholder's  Equity. Any such payment
pursuant to this Section 2.4(a) shall be made at a mutually  convenient time and
place (i) within 40 days after Seller's delivery of the documents referred to in
Section   2.3(a)  if  no  notice  of   disagreement   with  respect  to  Closing
Stockholder's  Equity is duly delivered  pursuant to Section 2.3(b) or (ii) if a
notice of  disagreement  with  respect to Closing  Stockholder's  Equity is duly
delivered  pursuant  to Section  2.3(b) then within 10 days after the earlier of
(A)  agreement  between the parties  pursuant to Section  2.3(c) with respect to
Closing  Stockholder's  Equity and (B)  delivery of the  calculation  of Closing
Stockholder's Equity referred to in Section 2.3(c).

     (b) Method of Payment.  Any payments  pursuant to this Section 2.4 shall be
made by wire  transfer of  immediately  available  funds to such  account as the
payee may direct by written notice  delivered to the payor by the payee at least
two business days prior to the date of such  payment.  The amount of any payment
to be made  pursuant to this Section 2.4 shall bear  interest from and including
the Closing Date to but  excluding the date of payment at a rate per annum equal
to the rate publicly  announced from time to time by The Chase Manhattan Bank in
New York City as its prime  rate in effect  from time to time  during the period
from the Closing Date to the date of payment.  Such interest shall be payable at
the same time as the payment to which it relates and shall be  calculated  daily
on the

                                        6

<PAGE>



basis of a year of 365 days and the actual number of days for which due.

                                   ARTICLE III

                    Representations and Warranties of Seller

     Seller hereby represents and warrants to Purchaser that:

     3.1  Corporate  Existence  and Power.  Each of Seller and the  Company is a
corporation duly  incorporated,  validly existing and in good standing under the
laws of its jurisdiction of incorporation, and has all requisite corporate power
and  authority to carry on its business as now being  conducted.  The Company is
duly qualified to do business as a foreign  corporation  and is in good standing
in each  jurisdiction  where the character of the property owned or leased by it
or the nature of its activities make such  qualification  necessary.  Seller has
heretofore delivered to Purchaser true and complete copies of the certificate of
incorporation and bylaws of Seller and the Company as currently in effect.

     3.2 Corporate  Authorization.  The execution,  delivery and  performance by
Seller of this  Agreement  and the  consummation  by Seller of the  transactions
contemplated  hereby are  within  Seller's  corporate  powers and have been duly
authorized  by all  necessary  corporate  action on the part of  Seller  and the
shareholder of Seller. This Agreement constitutes a valid and binding obligation
of Seller,  enforceable against Seller in accordance with its terms,  subject to
(i) bankruptcy, insolvency, fraudulent transfer, moratorium,  reorganization and
other  similar laws  affecting  creditors'  rights  generally  and the rights of
creditors of insurance companies generally and (ii) general principles of equity
(regardless of whether considered in a proceeding at law or in equity).

     3.3  Governmental  Authorization;  Consents.  (a)  Except  as set  forth in
Section 3.3(a) of the Disclosure Schedule and except for applicable requirements
of the HSR Act,  neither the execution and delivery of this Agreement by Seller,
nor the  consummation  by Seller of the  transactions  contemplated  hereby will
require any action by or in respect of, or filing with, any  governmental  body,
agency, official or authority (other than actions or filings that are immaterial
to Purchaser,  the Company and the  Subsidiaries,  and the  consummation  of the
transactions contemplated hereby).

     (b) Except as set forth in Section  3.3(b) of the Disclosure  Schedule,  no
consent,  approval,  waiver  or  other  action  by any  Person  (other  than any
governmental body, agency, official or authority referred to in (a) above) under
any contract,  agreement,  indenture, lease, instrument or other document listed
in Section  3.11(a) of the Disclosure  Schedule is required or necessary for the
execution,  delivery  and  performance  of  this  Agreement  by  Seller  or  the
consummation of the transactions contemplated hereby.

     3.4 Non-Contravention. Except as set forth in Section 3.4 of the Disclosure
Schedule, the execution, delivery and performance by Seller of this Agreement do
not  and  will  not  (i)   contravene  or  conflict  with  the   certificate  of
incorporation or bylaws of Seller, the Company or any Subsidiary,  (ii) assuming
compliance  with the  matters  referred  to in  Section  3.3(a),  contravene  or
conflict in any material  respect with or constitute a violation in any material
respect of any provision of any law, regulation,  judgment, injunction, order or
decree binding upon or applicable to Seller, the Company or

                                        7

<PAGE>



any Subsidiary;  (iii)  constitute a default under, or give rise to any right of
termination,  cancellation or acceleration of any right or obligation of Seller,
the  Company  or any  Subsidiary  under,  or to a loss of any  benefit  to which
Seller,  the Company or any Subsidiary is entitled  under,  any provision of any
material  agreement,  contract or other material instrument binding upon Seller,
the Company or any  Subsidiary  or any material  license,  franchise,  permit or
other  similar  material  authorization  held  by  Seller,  the  Company  or any
Subsidiary  or (iv)  result in the  creation  or  imposition  of any Lien on any
material asset of Seller, the Company or any Subsidiary.

     3.5 Capitalization. The authorized capital stock of the Company consists of
50,000  shares of Common  Stock.  As of the date hereof,  there are  outstanding
10,000 shares of Common Stock.  All  outstanding  shares of capital stock of the
Company are duly  authorized,  validly  issued,  fully paid and  non-assessable.
Except as set forth in this  Section,  there are no  outstanding  (i)  shares of
capital stock or other voting securities of the Company,  (ii) securities of the
Company  convertible  into or exchangeable for shares of capital stock or voting
securities  of the Company or (iii)  options or other rights to acquire from the
Company,  and there is no obligation of the Company to issue, any capital stock,
voting  securities or securities  convertible  into or exchangeable  for capital
stock or voting  securities  of the Company (the items in clauses (i),  (ii) and
(iii) being referred to collectively as the "Company Securities").  There are no
outstanding  obligations of the Company or any Subsidiary to issue or deliver or
to repurchase, redeem or otherwise acquire any Company Securities. Seller is and
will be at the Closing the record and beneficial  owner of the Shares,  free and
clear of any Lien whatsoever,  and will transfer and deliver to Purchaser at the
Closing  valid  title to the  Shares  free and clear of any  Lien.  There are no
stockholder  agreements,  voting  agreements,  voting  trusts,  proxies or other
agreements in effect with respect to the voting or transfer of the Common Stock.

     3.6 Subsidiaries.  (a) Each Subsidiary is a corporation duly  incorporated,
validly  existing and in good  standing  under the laws of its  jurisdiction  of
incorporation,  has all requisite  corporate power and authority to carry on its
business  as now  conducted  and is duly  qualified  to do business as a foreign
corporation and is in good standing in each jurisdiction  where the character of
the  property  owned or leased by it or the nature of its  activities  make such
qualification  necessary. All Subsidiaries and their respective jurisdictions of
incorporation  are  identified  in Section  3.6(a) of the  Disclosure  Schedule.
Seller has  heretofore  delivered to Purchaser  true and complete  copies of the
certificate  of  incorporation  and bylaws of each  Subsidiary  as  currently in
effect.

     (b) Except as set forth in Section 3.6(b) of the Disclosure  Schedule,  all
of the  outstanding  capital  stock of, or other  ownership  interests  in, each
Subsidiary,  is owned,  of record and  beneficially,  by the  Company or another
Subsidiary,  free and  clear of any Lien  and free of any  other  limitation  or
restriction  (including any  restriction on the right to vote, sell or otherwise
dispose  of such  capital  stock or other  ownership  interests).  There  are no
outstanding (i) securities of the Company or any Subsidiary  convertible into or
exchangeable for shares of capital stock or other voting securities or ownership
interests in any  Subsidiary or (ii) options or other rights to acquire from the
Company or any  Subsidiary,  and there is no  obligation  of the  Company or any
Subsidiary,  to issue, any capital stock,  voting  securities or other ownership
interests in, or any securities convertible into or exchangeable for any capital
stock, voting securities or ownership interests in, any Subsidiary (the items in
clauses  (i)  and  (ii)  being  referred  to  collectively  as  the  "Subsidiary
Securities").  There  are  no  outstanding  obligations  of the  Company  or any
Subsidiary to repurchase, redeem or otherwise acquire any outstanding

                                        8

<PAGE>



Subsidiary Securities.

     (c)  Other  than the  Subsidiaries  identified  in  Section  3.6(a)  of the
Disclosure  Schedule,  there are no other  corporations,  partnerships,  limited
liability  companies,  joint  ventures or other entities in which the Company or
any Subsidiary  owns, of record or  beneficially,  any direct or indirect equity
interest or any right  (contingent or otherwise) to acquire the same.  There are
no stockholder  agreements,  voting agreements,  voting trusts, proxies or other
agreements in effect with respect to the voting or transfer of the capital stock
of any Subsidiary.

     3.7 Financial  Statements.  The audited  consolidated balance sheets of the
Company as of December 31, 1995 and 1996 and the related consolidated statements
of income, stockholder's equity and cash flows for each of the years then ended,
and the unaudited  consolidated balance sheet of the Company as of June 30, 1997
and the related  consolidated  statements of income and stockholder's equity for
the six month period then ended, respectively, attached hereto as Section 3.7(a)
of the  Disclosure  Schedule,  fairly  present  in  all  material  respects,  in
conformity with generally accepted accounting principles applied on a consistent
basis  (except  as may be  indicated  in the  notes  thereto  or as set forth on
Section 3.7(b) of the Disclosure Schedule),  the consolidated financial position
of the Company and its  consolidated  Subsidiaries  as of the dates  thereof and
their  consolidated  results  of  operations  and,  in the  case of the  audited
financial statements,  cash flows for the periods then ended (subject to normal,
historically  consistent  year-end  adjustments  in the  case  of the  unaudited
interim financial statements).

     3.8  Properties.  (a) Neither the Company nor any Subsidiary  owns any real
property. The Company and the Subsidiaries have good and marketable title to, or
in the case of leased  property  have valid  leasehold  interests in, all assets
reflected on the Balance Sheet or acquired after the Balance Sheet Date,  except
for assets sold, or leaseholds  terminated,  since the Balance Sheet Date in the
ordinary course of business consistent with past practices.  None of such assets
is subject to any Liens,  except: (i) Liens disclosed on the Balance Sheet; (ii)
Liens for  taxes not yet due or being  contested  in good  faith  (and for which
adequate accruals or reserves have been established on the Balance Sheet); (iii)
Liens which do not materially  detract from the value of such property or assets
as now used,  or materially  interfere  with any present or intended use of such
property or assets;  (iv) Liens  attaching by operation of law,  incurred in the
ordinary course of business consistent with past practices and securing payments
not past due; or (v) Liens with  respect to which  deposits or pledges have been
made to obtain the release of any such Liens described in clause (iv) above.

     (b) The accounts receivable reflected on the Balance Sheet and all accounts
receivable arising between the Balance Sheet Date and the date of this Agreement
arose from bona fide transactions in the ordinary course of business and are not
subject to offset or deduction, and the goods and/or services involved have been
sold, delivered and/or fully-performed.  Management of the Company believes that
adequate  provision has been made for  contractual  discounts and adjustments to
all such accounts receivable from third-party payors.

     3.9 No Undisclosed  Material  Liabilities.  To the knowledge of the Company
(after  reasonable  inquiry),  there are no  liabilities  of the  Company or any
Subsidiary  of any  kind  whatsoever,  whether  accrued,  contingent,  absolute,
determined,  determinable or otherwise,  other than (i) liabilities disclosed or
provided  for in the Balance  Sheet or in the notes to the  balance  sheet as of
December 31,

                                        9

<PAGE>



1996 referred to in Section 3.7, (ii) liabilities arising out of items disclosed
in Section 3.10 of the Disclosure  Schedule,  (iii) liabilities that the Company
is  retaining,  or the  Purchaser is assuming,  pursuant to Article IX, and (iv)
current  liabilities  accruing  in the  ordinary  course  of  business  that are
immaterial to the Company and the Subsidiaries taken as a whole.

     3.10  Litigation.  Except as set  forth in  Section  3.10 of the Disclosure
Schedule, there is no material action, suit, investigation,  proceeding or claim
made in writing  (other than claims made under benefit  plans  pursuant to which
the Company provides  behavioral health services) (whether insured or uninsured)
pending,  or to the knowledge of Seller  threatened,  against the Company or any
Subsidiary or any of their respective  properties before any court or arbitrator
or any governmental  body,  agency,  official or authority.  There is no action,
suit,  investigation  or  proceeding  pending,  or to the  knowledge  of  Seller
threatened,  against Seller,  the Company or any Subsidiary seeking to prohibit,
prevent  or  materially  alter or delay  the  consummation  of the  transactions
contemplated hereby.

     3.11 Material  Contracts.  (a) Section  3.11(a) of the Disclosure  Schedule
sets forth the following agreements,  contracts,  plans, leases, arrangements or
commitments (each, a "Contract" and, collectively, the "Contracts"):

          (i) any  agreement  providing  for the  delivery by the Company or any
     Subsidiary  of  behavioral   healthcare  services  for  non-Aetna  employee
     assistance  program and managed  behavioral  health business  providing for
     projected  annualized premiums (based upon June 30, 1997 business in force)
     to  the  Company  or  any   Subsidiary  of  $200,000  or  more   ("Customer
     Contracts");

          (ii) any provider contract between the Company or any Subsidiary and a
     third party  behavioral  healthcare  service provider (x) pursuant to which
     subcapitation or other alternative payment  arrangements are utilized,  and
     (y) in each of the nine regions served by the Company and the Subsidiaries,
     the largest  (measured by volume of services  provided)  provider  contract
     with respect to (1) in-patient  services,  (2) partial in-patient services,
     (3)  intensive  out-patient  services  and (4)  out-patient  services  (the
     "Provider Contracts");

          (iii) any agreement, other than Customer Contracts, Provider Contracts
     and License  Contracts  (as  defined  below),  for the  purchase or sale of
     goods, services, equipment or other assets providing for annual payments by
     or to the Company or any  Subsidiary  of  $150,000 or more,  other than any
     such  agreements  that are terminable by the Company or such  Subsidiary at
     will on thirty or fewer days' notice without any premium,  penalty or other
     similar  payment in excess of $10,000  becoming  payable by the  Company or
     such Subsidiary by virtue of such termination;

          (iv) any lease for real or  personal  property  in which the amount of
     payments  which the Company is required to make on an annual basis  exceeds
     $50,000;

                                       10

<PAGE>



          (v)  any  partnership,   joint  venture  or  other  similar  contract,
     arrangement or agreement;

          (vi) any  contract  relating to  indebtedness  for  borrowed  money or
     guarantee or the deferred  purchase  price of property  (whether  incurred,
     assumed,  guaranteed  or  secured  by any  asset)  in an  amount  exceeding
     $100,000;

          (vii)  any  contract  or  cost  allocation   arrangement  relating  to
     outstanding indebtedness,  liabilities or obligations for amounts owing to,
     or notes  or  accounts  receivable  from,  or  leases,  contracts  or other
     commitments  or  arrangements  with or for the benefit of, Seller or any of
     its  Affiliates,   other  than  any  such  unwritten   contracts,   leases,
     commitments  or  arrangements  which will be  terminated on or prior to the
     Closing Date without giving rise to any further  obligations on the part of
     the Company or such Subsidiary;

          (viii) any contract  relating to the acquisition or disposition of any
     asset or  business  (whether  by merger,  sale of stock,  sale of assets or
     otherwise)  material to the Company and the Subsidiaries  taken as a whole,
     where the transactions contemplated thereby have not been consummated as of
     the date hereof;

          (ix) any  contract  or other  agreement  that by its terms  limits the
     right  of the  Company  or any  Subsidiary  to  compete  (x) in any line of
     business,  (y) with any Person or (z) in any geographic area or which would
     so limit the right of the Company or any Subsidiary after the Closing Date;

          (x) any  contract  or other  agreement  relating  to any  Intellectual
     Property  Rights used by the Company or any  Subsidiary,  which contract or
     other agreement  provides for annual license payments in excess of $100,000
     ("License Contracts"); and

          (xi) any other contract or commitment not made in the ordinary  course
     of business that is material to the Company and the Subsidiaries taken as a
     whole.

     (b)Except as set forth in Section 3.11(b) of the Disclosure Schedule,  each
Contract  is a valid  and  binding  agreement  of the  Company  or a  Subsidiary
enforceable in accordance with its terms, subject to (i) bankruptcy, insolvency,
fraudulent transfer, moratorium, reorganization and other similar laws affecting
creditors'  rights generally and the rights of creditors of insurance  companies
generally  and  (ii)  general   principles  of  equity  (regardless  of  whether
considered  in a  proceeding  at law or in  equity),  and as of the date of this
Agreement is in full force and effect,  and neither the Company,  any Subsidiary
nor, to the  knowledge of Seller,  any other party  thereto is in default in any
material respect under the terms of any such Contract. Seller has made available
to Purchaser a true and correct copy of each Contract.

                                       11

<PAGE>



     (c)Except as set forth in Section  3.11(c) of the Disclosure  Schedule,  to
the knowledge of Seller as of the date of this Agreement,  no third party to any
of the  Contracts  intends to (i)  terminate or amend the terms  thereof or (ii)
refuse to renew same upon expiration of its current term.

     3.12  Compliance  with Laws.  Neither the Company  nor any  Subsidiary  has
violated or is in violation in any material respect of any applicable provisions
of any laws, statutes, ordinances, licenses, permits,  authorizations,  rules or
other  regulations.  Neither the Company nor any Subsidiary is in default in any
material  respect  under,  and no condition  exists that with notice or lapse of
time or both would  constitute  a default in any  material  respect  under,  any
order,  injunction or material judgment of any court, arbitrator or governmental
body, agency, official or authority.

     3.13 Brokers' Fees. Except for Merrill Lynch & Co., whose fees will be paid
by Seller, there is no investment banker,  broker,  finder or other intermediary
which has been  retained  by or is  authorized  to act on behalf of Seller,  the
Company or any  Subsidiary  who might be entitled to any fee or commission  from
Purchaser,  the Company or any of their respective  Affiliates upon consummation
of the transactions contemplated by this Agreement.

     3.14 Intellectual  Property. (a) Except as set forth in Section 3.14 of the
Disclosure Schedule,  each of the Company and its Subsidiaries owns or otherwise
has rights to use all  Intellectual  Property  Rights used in the conduct of the
Company's and such Subsidiaries' businesses as presently conducted.

     (b)(i)  Neither the Company nor any  Subsidiary is being sued or charged in
writing with or is a defendant in any claim, suit, action or proceeding relating
to its assets or business that involves a claim of  infringement of any material
Intellectual  Property  Rights and (ii) to the knowledge of Seller,  there is no
other  claim of such  infringement  by the  Company  or any  Subsidiary.  To the
knowledge of Seller, there is no continuing  infringement by any other Person of
any  of  the  material  Intellectual  Property  Rights  of  the  Company  or any
Subsidiary.

     3.15  Permits  and  Licenses.  Except as set forth in  Section  3.15 of the
Disclosure  Schedule,  each of the Company and its  Subsidiaries  possesses  all
permits, licenses and other authorizations (the "Licenses") of, and has made all
registrations  with, all  governmental or  accreditation  entities  necessary to
conduct the Company's and such Subsidiaries'  businesses as presently  conducted
(other than, in the case of Licenses and  registrations  for the Company,  Human
Affairs Alaska, Inc. or Human Affairs International of California, respectively,
such Licenses and registrations that are immaterial to such Person,  and, in the
case of Licenses and registrations for the other Subsidiaries, such Licenses and
registrations that are immaterial to the Company and the Subsidiaries taken as a
whole).  Except as set forth in  Section  3.15 of the  Disclosure  Schedule,  no
notice  from  any  governmental  or  accreditation   entities  with  respect  to
(including  an   investigation)   the   revocation,   termination,   suspension,
restriction,  modification or limitation of any material  License or the failure
to have any material License has been issued,  or given, to Seller,  the Company
or any Subsidiary,  nor, to the knowledge of Seller, is the issuance of any such
notice  or the  commencement  of any such  investigation  proposed,  pending  or
threatened.  A list of the material Licenses is set forth in Section 3.15 of the
Disclosure Schedule.

     3.16 Labor Matters.  There is no collective  bargaining agreement in effect
or, to the knowledge of Seller, other union organizational effort occurring with
respect to the employees of the

                                       12

<PAGE>



Company.  There  is no labor  strike,  dispute,  stoppage  or  lockout  pending,
affecting,  or to the  knowledge of Seller,  threatened  against the Company and
during  the past two  years  there has not been any such  action.  Except as set
forth  in  Section  3.16  of the  Disclosure  Schedule,  there  are no  charges,
administrative  proceedings  or formal  complaints  or, to the  knowledge of the
Seller,  investigations of discrimination  (including  discrimination based upon
sex, age, marital status, race, national origin,  sexual preference,  disability
or veteran status) pending before the Equal Employment Opportunity Commission or
any other governmental entities against the Company or any Subsidiary.

     3.17 Insurance Policies. Section 3.17 of the Disclosure Schedule sets forth
(i) a true  and  complete  list  of all  insurance  policies  and  other  surety
arrangements of any kind whatsoever  which relate to the assets or businesses of
the Company or any Subsidiary (the "Policies") and (ii) a summary description of
each pending claim asserting liability to the Company or any Subsidiary equal to
or greater than $500,000 under each of the Policies.  All of the Policies are in
full force and effect.  During the three-year  period ending on the date hereof,
no such insurance policies or other surety arrangements have been canceled by an
insurer and no  application  for any such  insurance  policies  or other  surety
arrangements has been rejected by an insurer.

     3.18 Absence of Certain Commercial  Practices.  To the knowledge of Seller,
none  of  Seller,  the  Company,  any  Subsidiary,  or any of  their  respective
directors, officers or employees has:

     (a) given, proposed to give, or agreed to give any material gift or similar
material  benefit to any  customer,  supplier or any other person (other than as
described in subsection (b) of this Section 3.18), for the purpose of furthering
the business of the Company or any Subsidiary;

     (b) in connection with the business of the Company or any Subsidiary,  used
any  corporate  or  other  funds  for   contributions,   payments,   gifts,   or
entertainment,  or made any  expenditures  relating to political  activities  to
government employees,  officials or others in violation of any applicable law or
established or maintained any unlawful or unrecorded funds; or

     (c) offered, paid, solicited or received any remuneration (as such term has
been interpreted under 42 U.S.C. ss. 1320a-7b(b)) to induce or in return for any
referral of healthcare  business or ordering of healthcare  items or services in
violation of any federal or state civil or criminal law.

To the knowledge of Seller, none of Seller, the Company, any Subsidiary,  or any
of their respective  directors,  officers, or employees has accepted or received
any unlawful contributions,  payments or gifts in connection with the businesses
of the Company and the Subsidiaries.

     3.19  Assets.  Except as  disclosed  on Section  3.19(a) of the  Disclosure
Schedule,  the assets and  properties  owned or leased by the Company are all of
the assets and  properties  necessary to conduct the business and  operations of
the  Company  as  currently  conducted  by the  Company.  Except as set forth on
Section  3.19(b) of the  Disclosure  Schedule,  Seller  covenants  and agrees to
contribute  or cause to be  contributed  or  transferred  to the  Company for no
additional  consideration,  good and  marketable  title,  free and  clear of all
Liens, to those assets and properties  (exclusive of  Intellectual  Property and
real  property)  ("Contributed  Assets")  set forth on  Section  3.19(b)  of the
Disclosure Schedule that are owned or leased by Seller or an Affiliate of Seller
and used  exclusively  or  principally  in the  business and  operations  of the
Company or its Subsidiaries. The contribution or transfer of the

                                       13

<PAGE>



Contributed  Assets  shall  not be taken  into  consideration  for  purposes  of
calculating  the Closing  Stockholder's  Equity.  The only assets and properties
(exclusive of Intellectual  Property and real property) within the categories of
assets and  properties set forth on Section  3.19(a) of the Disclosure  Schedule
which will not be Contributed  Assets are those assets and properties  which the
Company  will have the right to  utilize  pursuant  to the  Transition  Services
Agreement.  Section 3.19(c) of the Disclosure Schedule also sets forth a list of
the general  categories of services that have been historically  provided to the
Company and the Subsidiaries by Seller or its Affiliates.

     3.20 No  Adverse  Changes.  Except  as set  forth  in  Section  3.20 of the
Disclosure  Schedule,  since  the  Balance  Sheet  Date,  the  Company  and  the
Subsidiaries  have conducted  their  respective  businesses only in the ordinary
course  of  business,  and  none of  them  has:  (i)  through  the  date of this
Agreement,  suffered any material adverse change in its business,  properties or
financial  condition,   including  any  material  damage,  destruction  or  loss
affecting its assets, (ii) made any material increase in compensation payable or
to  become  payable  to any of its  employees  or made or  promised  to make any
material bonus payment to any of its employees,  or made any material  change in
personnel  policies,  insurance  benefits  or  other  compensation  arrangements
affecting any of its employees (other than increases, promises or changes in the
ordinary  course  consistent  with past  practices or pursuant to Benefit Plans,
Benefit  Arrangements  and  practices  in effect as of the Balance  Sheet Date);
(iii) sold,  transferred,  leased to others or otherwise  disposed of any of its
material assets (except for (x) inventory sold or used in the ordinary course of
business  consistent  with past  practices or (y) assets sold or disposed of and
replaced by other similar assets), canceled or compromised any debts owed to, or
claims  relating to, its assets,  business or  operations  which are of material
value or waived,  compromised or released any rights which are of material value
or (iv)  through the date of this  Agreement,  suffered any  termination  of any
Contract to which it is or was a party representing $500,000 or more of revenues
to the Company and the  Subsidiaries  for the 12-month period ending on the date
of this Agreement.

     3.21  Disclosure.  To the  knowledge  of  Seller,  as of the  date  of this
Agreement,  no  representation  or  warranty  of the Seller (as  modified by the
Disclosure Schedule) contained in this Agreement,  and no statement contained in
any certificate,  document or other instrument  furnished to the Purchaser by or
on behalf of Seller pursuant to this Agreement, contains any untrue statement of
a  material  fact or  omits  to  state a  material  fact  necessary  to make the
statements  contained  herein or therein,  in light of the  circumstances  under
which they were made, not misleading.

                                   ARTICLE IV

                   Representations And Warranties Of Purchaser

            Purchaser hereby represents and warrants to Seller that:

     4.1   Organization   and  Existence.   Purchaser  is  a  corporation   duly
incorporated,  validly  existing  and in good  standing  under  the  laws of its
jurisdiction  of  incorporation  and  has  all  requisite  corporate  power  and
authority to carry on its business as now conducted.

     4.2 Corporate  Authorization.  The execution,  delivery and  performance by
Purchaser  of  this  Agreement  and  the   consummation   by  Purchaser  of  the
transactions  contemplated  hereby are within  Purchaser's  corporate powers and
have been duly authorized by all necessary corporate action

                                       14

<PAGE>



on the  part of  Purchaser.  This  Agreement  constitutes  a valid  and  binding
obligation of Purchaser,  enforceable  against  Purchaser in accordance with its
terms, subject to (i) bankruptcy,  insolvency,  fraudulent transfer, moratorium,
reorganization and other similar laws affecting  creditors' rights generally and
(ii)  general  principles  of equity  (regardless  of  whether  considered  in a
proceeding at law or in equity).

     4.3  Governmental  Authorization;  Consents.  (a)  Except  as set  forth in
Section  4.3(a) of the Purchaser  Disclosure  Schedule and except for applicable
requirements  of the  HSR  Act,  neither  the  execution  and  delivery  of this
Agreement by Purchaser,  nor the  consummation by Purchaser of the  transactions
contemplated hereby will require any action by or in respect of, or filing with,
any  governmental  body,  agency,  official or authority  (other than actions or
filings that are immaterial to Seller,  the Company,  the  Subsidiaries  and the
consummation of the transactions contemplated hereby).

     (b)  Except as set forth in  Section  4.3(b)  of the  Purchaser  Disclosure
Schedule, no consent, approval, waiver or other action by any Person (other than
any governmental body,  agency,  official or authority referred to in (a) above)
under any material contract,  agreement,  indenture,  lease, instrument or other
document  to which  Purchaser  is a party or by which it is bound is required or
necessary  for the  execution,  delivery and  performance  of this  Agreement by
Purchaser or the consummation of the transactions contemplated hereby.

     4.4 Non-Contravention. The execution, delivery and performance by Purchaser
of this  Agreement  do not and  will not (i)  contravene  or  conflict  with the
certificate of  incorporation or bylaws of Purchaser,  (ii) assuming  compliance
with the matters  referred to in Section  4.3(a),  contravene or conflict in any
material  respect with or constitute a violation in any material  respect of any
provision of any law, regulation,  judgment, injunction, order or decree binding
upon Purchaser,  (iii)  constitute a default under, or give rise to any right of
termination,  cancellation  or  acceleration  of  any  right  or  obligation  of
Purchaser  under,  or to a loss of any  benefit to which  Purchaser  is entitled
under,  any  provision of any  material  agreement,  contract or other  material
instrument binding upon Purchaser or any material license,  franchise, permit or
other  similar  material  authorization  held by Purchaser or (iv) result in the
creation or imposition of any Lien on any material asset of Purchaser.

     4.5 Brokers' Fees. There is no investment banker,  broker,  finder or other
intermediary  which has been  retained by or is  authorized  to act on behalf of
Purchaser who might be entitled to any fee or  commission  from Seller or any of
its  Affiliates  upon  consummation  of the  transactions  contemplated  by this
Agreement.

     4.6 Financing. Purchaser has, and at all times until the Closing will have,
funds sufficient to consummate the transactions contemplated hereby, which funds
are not,  and shall not,  be subject to any  contingencies  or  consents  by any
Person in order to consummate such transactions.

     4.7  Purchase  for  Investment.  Purchaser  is  purchasing  the  Shares for
investment for its own account and not with a view to, or for sale in connection
with, any distribution thereof.

     4.8  Litigation.  There is no action,  suit,  investigation  or  proceeding
(whether insured or uninsured) pending against, or to the knowledge of Purchaser
threatened against or affecting, Purchaser before any court or arbitrator or any
governmental body, agency or official which in any

                                       15

<PAGE>



manner  challenges or seeks to prevent,  enjoin,  alter or materially  delay the
transactions contemplated hereby.

     4.9 Inspections.  Purchaser is an informed and sophisticated  purchaser, is
familiar  with the business of the  Company,  and has engaged  expert  advisors,
experienced  in the  evaluation  and purchase of companies  such as the Company.
Purchaser has undertaken such  investigation  and has been provided with and has
evaluated such documents and information as it has deemed necessary to enable it
to make an informed and  intelligent  decision  with  respect to the  execution,
delivery and performance of this Agreement.  Purchaser  acknowledges that Seller
has made no  representation  or  warranty  as to the  Shares  or the  prospects,
financial or otherwise, of the Company or the Subsidiaries,  except as expressly
set forth herein.

                                    ARTICLE V

                               Covenants Of Seller

     Seller agrees that:

     5.1 Conduct of the Company.  From the date hereof  until the Closing  Date,
Seller shall cause the Company and the  Subsidiaries to conduct their businesses
in the ordinary course consistent with past practices.

     (a) Except as otherwise provided in this Agreement or Section 5.1(a) of the
Disclosure  Schedule,  from the date of this  Agreement  until the Closing Date,
without the prior written  consent of the Purchaser,  Seller will not permit the
Company or any Subsidiary to:

     (i) adopt or propose  any change in its  certificate  of  incorporation  or
bylaws;

     (ii)  merge or  consolidate  with any other  Person or  acquire  or lease a
material amount of assets of any other Person, except for those assets which are
owned by Seller or Affiliates of Seller and identified in Section 3.19(b) of the
Disclosure  Schedule which will be contributed or transferred to the Company for
no consideration;

     (iii)  declare,  set aside or pay any dividend or other  distribution  with
respect to any shares of capital stock of the Company, or repurchase,  redeem or
otherwise  acquire any  outstanding  shares of capital stock, or other ownership
interests in, the Company or any Subsidiary;

     (iv) incur,  assume or guarantee any  indebtedness for borrowed money other
than, in each case, (x) in a principal  amount not exceeding  $100,000 or (y) in
the ordinary course of business and in amounts and on terms consistent with past
practices;

     (v) create or assume any Lien on any material asset other than

                                       16

<PAGE>



         in the ordinary course of business consistent with past practices;

     (vi) make any loan,  advance or capital  contributions  to or investment in
any  Person,  other  than  loans,   advances  or  capital  contributions  to  or
investments  made (x) that are  immaterial  to the Company and the  Subsidiaries
taken as a whole,  (y) pursuant to existing  contracts or  commitments or (z) in
the ordinary course of business consistent with past practices;

     (vii) sell,  lease,  license or otherwise dispose of any material assets or
property  except (x)  pursuant  to  existing  contracts  or  commitments  (which
contracts or commitments are described in Section  5.1(a)(vii) of the Disclosure
Schedule) or (y) in the ordinary course consistent with past practices;

     (viii)  change any method of accounting  or  investment,  tax or accounting
practice,  except for any such change required by reason of a concurrent  change
in generally accepted accounting principles or law;

     (ix) enter  into or  consummate  any joint  venture,  partnership  or other
similar  arrangement or, except as otherwise  permitted or required  pursuant to
this Agreement, form any other new arrangement for the conduct of its business;

     (x) terminate, renew, amend or otherwise alter any of the material Customer
Contracts  or  other  Contracts,  except  in the  ordinary  course  of  business
consistent with past practices;

     (xi) except as otherwise  permitted or required pursuant to this Agreement,
enter into any written contract or other agreement with Seller, any Affiliate of
Seller or any  Affiliate of the Company  (other than written  contracts or other
agreements between or among the Company and the Subsidiaries);

     (xii) increase or otherwise  change the rate or nature of the  compensation
(including wages, salaries and bonuses) which is paid or payable to any employee
or  independent  contractor  of the  Company  or any  Subsidiary,  except in the
ordinary  course of  business  consistent  with past  practices  or  pursuant to
existing  Employee  Plans,  Benefit  Arrangements,  and practices with have been
disclosed to Purchaser;

     (xiii)  adopt or commit to adopt any employee  plan or benefit  arrangement
other than an Employee Plan or Benefit  Arrangement or make material  amendments
to any such Employee Plan or Benefit  Arrangement  except to the extent required
by law or necessary to preserve the nature of the benefits  provided  under such
plan or arrangement;

                                       17

<PAGE>



     (xiv) issue or commit to issue any  additional  shares of capital  stock or
option or warrant of the Company or any Subsidiary;

     (xv) enter into any  transaction,  contract  or  agreement  material to the
Company  and the  Subsidiaries  taken as a whole,  other than  transactions  and
commitments in the ordinary  course of business  consistent  with past practices
and other than those contemplated by this Agreement;

     (xvi) alter in any material respect the  consideration  paid or received by
the Company for those  services set forth on Section  3.19(c) of the  Disclosure
Schedule; or

     (xvii)agree or commit to do any of the foregoing.

Seller will not, and will not permit the Company or any  Subsidiary  to (i) take
or agree or commit to take any action  that would  make any  representation  and
warranty of Seller hereunder inaccurate in any material respect at, or as of any
time prior to, the Closing  Date or (ii) omit or agree or commit to omit to take
any action necessary to prevent any such  representation  or warranty from being
inaccurate in any material respect at any such time.

     (b)Except as otherwise  provided in this Agreement or Section 5.1(b) of the
Disclosure  Schedule,  from the date of this  Agreement  until the Closing Date,
Seller will cause the Company and the Subsidiaries to:

     (i)  maintain  their books and records in the usual,  regular and  ordinary
manner consistent with past practices;

     (ii) preserve their businesses and maintain all of their material Licenses;

     (iii) preserve  generally the goodwill of the businesses of the Company and
the Subsidiaries; and

     (iv)  continue  to  perform  in  the  ordinary   course  their   respective
obligations under the Contracts.

     5.2 Access to Information. (a) From the date hereof until the Closing Date,
Seller  will  give,  and will cause the  Company  and each  Subsidiary  to give,
Purchaser,  its  counsel,  financial  advisors,  auditors  and other  authorized
representatives reasonable access to the offices,  properties, books and records
of the  Company and the  Subsidiaries;  provided  that all such access  shall be
arranged solely by prior request made by Purchaser to the persons  designated by
Seller as the contact  people for such  purposes.  Purchaser  agrees not to, and
shall cause its  counsel,  financial  advisors,  auditors  and other  authorized
representatives not to, directly contact the Company, any Subsidiary,  or any of
their respective officers, directors or employees unless such designated contact
persons have approved such contact.

                                       18

<PAGE>



     (b) From the date hereof until the Closing Date,  Seller will furnish,  and
will cause the  Company  and each  Subsidiary  to  furnish,  to  Purchaser,  its
counsel, financial advisors,  auditors and other authorized representatives such
financial and operating data and other  information  relating to the Company and
the Subsidiaries as such Persons may reasonably request.

     (c) From the date  hereof  until  the  Closing  Date,  notwithstanding  the
foregoing,  Purchaser shall not have access to personnel  records of the Company
or any Subsidiary  relating to medical  histories or other  sensitive  personnel
information the disclosure of which could subject Seller to risk of liability.

     5.3 Notices of Certain Events. Seller shall promptly notify Purchaser of:

          (i) any notice or other  communication  from any Person  alleging that
     the consent of such Person is or may be  required  in  connection  with the
     transactions contemplated by this Agreement;

          (ii) any  notice  or other  communication  from  any  governmental  or
     regulatory   agency  or  authority  in  connection  with  the  transactions
     contemplated by this Agreement; and

          (iii)  any  actions,  suits,  claims,  investigations  or  proceedings
     commenced or, to its knowledge  threatened,  against Seller, the Company or
     any Subsidiary  that, if pending on the date of this Agreement,  would have
     been required to have been disclosed pursuant to Section 3.10.

     5.4  Resignations.  Seller  will  deliver to  Purchaser  at or prior to the
Closing Date the  resignations  of all officers and directors of the Company and
each Subsidiary who will be officers, directors or employees of Seller or any of
its Affiliates  after the Closing Date from their positions with the Company and
each Subsidiary.

     5.5 No Shop. Purchaser  contemplates the expenditure of substantial sums of
time  and  money  in  connection  with  legal,  accounting,  financial,  and due
diligence work to be performed in conjunction with the purchase of the shares as
contemplated   herein  (the   "Transaction")   and  may  forego  other  business
opportunities prior to the Closing. Accordingly,  Seller acknowledges and agrees
that,  from the date hereof through the Closing Date (or the termination of this
Agreement) (the "Restricted Period"),  neither Seller nor the Company,  directly
or indirectly, without Purchaser's prior written consent, shall initiate or hold
discussions  with any Person  (other  than  Purchaser  and its  representatives)
concerning  any  transaction   substantially   similar  to  the  Transaction  or
inconsistent  with the Transaction,  directly or indirectly,  whether by sale of
outstanding stock,  issuance of additional  securities,  merger,  consolidation,
sale or lease of  assets,  affiliation,  joint  venture,  or other  transaction.
During the Restricted Period, Seller will promptly notify Purchaser by telephone
and  thereafter  confirm in writing  via  telecopy  if any such  discussions  or
negotiations are sought in writing to be initiated with, or any such proposal or
possible proposal is received in writing,  directly or indirectly,  by Seller or
the Company and any such notice  will  include any terms and  conditions  of any
such proposal.

     5.6 Contributed  Assets.  Seller has previously  delivered to the Purchaser
lists of the

                                       19

<PAGE>



Contributed  Assets.  Seller has  informed the  Purchaser  that the lists it has
delivered  may need to be updated or revised.  Seller  agrees  that,  as soon as
reasonably  practicable  after the date hereof,  it will retain a business  firm
reasonably satisfactory to Purchaser for the purposes of taking an inventory and
valuation of the Contributed Assets and compiling a comprehensive list of all of
the Contributed Assets (the "Inventory List"). Purchaser shall have the right to
consult with the business  firm and observe the inventory  count and  valuation.
The fees and  expenses  of the  business  firm and the other costs of taking the
inventory  shall be borne  equally  by  Seller  and  Purchaser  and the fees and
expenses  of the  business  firm with  respect  to, and the other  costs of, the
valuation shall be borne by Purchaser.  At the Closing,  Seller shall deliver an
officer's  certificate  to the  Purchaser  stating  that the  Inventory  List is
complete and accurate in all material respects.

                                   ARTICLE VI

                             Covenants Of Purchaser

     Purchaser agrees that:

     6.1  Confidentiality.  All information and documents furnished to Purchaser
or any of the Persons  referred  to in Section  5.2 for any  purpose  under this
Agreement will be treated as  "Evaluation  Material"  under the  Confidentiality
Agreement dated March 10, 1997 between AHP Holdings, Inc. and Purchaser.  Seller
and Purchaser hereby agree that such  Confidentiality  Agreement shall terminate
and be of no further force and effect as of the Closing Date.

     6.2 Access.  Purchaser will cause the Company and the Subsidiaries,  on and
after the Closing  Date for a period of seven years  thereafter  (or such longer
period as may be necessary for income tax audit purposes or compliance with laws
purposes),  to afford promptly to Seller and its agents,  upon reasonable notice
to the persons  designated by Purchaser as the contact people for such purposes,
reasonable  access  during normal  business  hours to their  properties,  books,
records,  employees  and auditors to the extent  necessary  to permit  Seller to
determine any matter relating to its rights and obligations  hereunder or to any
period  ending on or before the Closing Date.  Seller will hold,  and will cause
its officers, directors, employees,  accountants, counsel, consultants, advisors
and agents to hold, in confidence,  unless  compelled to disclose by judicial or
administrative  process  or by  other  requirements  of  law,  all  confidential
documents and information  concerning the Company and the Subsidiaries  provided
to it pursuant to this Section 6.2. All access  afforded Seller pursuant to this
Section 6.2 shall be without  interference with the conduct of the businesses of
the Company and the  Subsidiaries  and shall be arranged solely by prior request
made by Seller to the persons  designated by Purchaser as the contact people for
such purposes.

     6.3 Insurance.  On or prior to the Closing, Seller shall purchase, or cause
to be purchased,  "tail" insurance coverage  (including  professional  liability
insurance  coverage),  with  limitations on liability of no less than $1,000,000
per claim and $7,000,000 in the aggregate and no more than  $5,000,000 per claim
and  $20,000,000 in the aggregate,  covering any and all claims that may be made
during the  period  beginning  on the  Closing  Date and  ending on the  seventh
anniversary  of the Closing Date in respect of any acts or  omissions  occurring
before  the  Closing  Date  by the  Company,  any  Subsidiary  or  any of  their
respective  employees,  contracted providers of behavioral  healthcare services,
subcontractors  or agents.  The parties shall negotiate in good faith and agree,
prior to Closing, within

                                       20

<PAGE>



the  range  specified   above,  on  the  appropriate  per  claim  and  aggregate
limitations on liability for such tail insurance.

     6.4 Use of Names.  After  the  Closing,  Purchaser  shall not use the names
"Aetna U.S.  Healthcare",  "Aetna",  "U.S.  Healthcare",  or any  combination or
derivation of the same in connection with the Company,  any Subsidiary or any of
their respective  operations,  or any other entity or operations associated with
Purchaser.  After the  Closing,  except as set  forth in the  Master  Agreement,
Seller and its Affiliates  shall not use the name "Human Affairs  International"
or any  combination  or derivation of the same in connection  with Seller or its
Affiliates  or any of  their  respective  operations,  or any  other  entity  or
operations associated with Seller.

     6.5  Headquarters  Lease.  With  respect  to the lease  (the  "Headquarters
Lease") of real property constituting the Company's  headquarters  facilities in
Sandy, Utah (the "Headquarters  Property"),  at the Closing,  Seller shall cause
Aetna Life Insurance  Company ("Aetna Life"),  as lessee under the  Headquarters
Lease, to sublet to the Company the Headquarters  Property on substantially  the
same terms and conditions as Aetna Life leases the Headquarters Property,  which
sublet shall be pursuant to a customary  sublease  agreement to be negotiated by
the parties prior to the Closing in good faith  (provided that the Company shall
not have any option to renew or extend the original term of the sublease).

     6.6  Retention  Arrangements.  From and after the Closing  Date,  Purchaser
agrees that it shall, and shall cause the Company to, assume  responsibility for
and comply with the terms and  conditions of the retention  agreements and other
arrangements set forth in Section 6.6 of the Disclosure Schedule (the "Retention
Arrangements");  provided  that Seller shall be  responsible  for any amounts in
excess  of  target  bonus  amounts  in the  aggregate  payable  pursuant  to the
Retention Arrangements.

                                   ARTICLE VII

                            Covenants Of Both Parties

     The parties hereto agree that:

     7.1  Reasonable  Efforts.  Subject  to the  terms  and  conditions  of this
Agreement,  each party will use all  reasonable  efforts to take, or cause to be
taken,  all  actions  and to do, or cause to be done,  all things  necessary  or
desirable under  applicable laws and regulations to consummate the  transactions
contemplated by this Agreement,  including,  without limitation, the preparation
and filing as promptly as  practicable  after the date of this  Agreement of (i)
all applicable  forms under the HSR Act and (ii) all applicable  forms necessary
in order to obtain any other required government approvals. Seller and Purchaser
each agree, and Seller, prior to the Closing, and Purchaser,  after the Closing,
agree to cause the  Company,  to  execute  and  deliver  such  other  documents,
certificates,  agreements  and other  writings and to take such other actions as
may be necessary or desirable in order to consummate or implement  expeditiously
the transactions contemplated by this Agreement.  Seller will use all reasonable
efforts,  in  cooperation  with  Purchaser,  to obtain those consents from third
parties with respect to the agreements  described in Items 1, 2 and 5 of Section
3.4 of the Disclosure Schedule.

     7.2 Certain Filings.  Seller and Purchaser shall cooperate with one another
(a) in

                                       21

<PAGE>



determining  whether  any  action  by or in  respect  of, or  filing  with,  any
governmental  body, agency,  official or authority is required,  or any actions,
consents,  approvals or waivers are required to be obtained  from parties to any
material  contracts,  in connection with the  consummation  of the  transactions
contemplated by this Agreement and (b) in taking such actions or making any such
filings,  furnishing  information  required in connection  therewith and seeking
timely to obtain any such actions, consents, approvals or waivers.

     7.3 Public  Announcements.  Each party agrees to obtain the approval of the
other party before issuing any press release or making any public statement with
respect to this Agreement or the transactions  contemplated  hereby,  except for
such press releases or public statements as may be required by applicable law or
any listing agreement with any national securities exchange.

     7.4 Related Agreements.  Each party acknowledges that the Master Agreement,
the Transition Services Agreement and the HMO and non-HMO Health Care Agreements
(collectively, the "Related Transaction Agreements") are an integral part of the
transactions  contemplated by this  Agreement.  Both parties agree to comply (or
cause their Affiliates to comply) with the Related Transaction Agreements.

     7.5 Home Office Lease.  Certain of the Company's employees currently occupy
space in Seller's home office (the "Home Office"). Prior to Closing, the parties
will discuss the necessity of maintaining  this  arrangement.  At the request of
the Company,  Seller or one of its  Affiliates  will enter into a lease with the
Company with respect to the  Company-occupied  space in the Home Office on terms
that are reasonably satisfactory to the parties,  provided that the term of such
lease shall be no longer than two years  following the Closing Date and the rent
due thereunder shall be at the same rate charged to other Aetna business units.

     7.6 Co-Located Space. The Company currently shares office space with Seller
or its Affiliates in a number of locations  identified on Section 3.11(a)(iv) of
the Disclosure  Schedule.  Unless prohibited under any applicable primary lease,
prior to the Closing, Seller and the Company will enter into sublease agreements
with respect to these shared locations on terms that are reasonably satisfactory
to Seller and the  Company.  The rent  charged to the  Company  pursuant to such
sublease   agreements   shall  be  determined  in  accordance   with  historical
methodologies.  Seller may increase the rent at any time to reflect increases in
its actual costs under the applicable  primary leases. The term of the subleases
shall be  mutually  agreed upon prior to the  Closing,  but shall not exceed the
shorter of (i) two years from the Closing  Date and (ii) the  remaining  term of
the primary lease;  provided  that, in connection  with Seller  terminating  the
primary lease or  subletting  the entire  leased  premises,  the sublease may be
terminated by Seller upon at least 180 days' prior written notice.

     7.7  Transition  Services  Standards.  Each party  agrees to use good faith
efforts  to  prepare  a  joint  description  of the  standards  of  quality  and
timeliness  that the  services to be  performed  under the  Transition  Services
Agreement  will be  performed,  which  description  will be attached  thereto as
Schedule C.

                                  

                                       22

                                  ARTICLE VIII

                                   Tax Matters

                                                        23




     8.1 Tax  Definitions.  The  following  terms,  as  used  herein,  have  the
following meanings:

     "Code" means the Internal Revenue Code of 1986.

     "Federal  Taxes" means United  States  Federal  income,  environmental  and
alternative or add-on minimum taxes.

     "Final  Determination"  shall  mean,  with  respect  to  Federal  Taxes,  a
"determination"  as defined in Section  1313(a) of the Code or  execution  of an
Internal  Revenue  Service  Form 870AD  and,  with  respect to Taxes  other than
Federal Taxes,  any final  determination  of liability in respect of a Tax that,
under  applicable law, is not subject to further appeal,  review or modification
through proceedings or otherwise, including but not limited to the expiration of
a statute of  limitations  or a period  for the  filing of claims  for  refunds,
amended returns or appeals from adverse determinations.

     "Post-Closing  Tax Period"  means any Tax period  ending  after the Closing
Date.

     "Pre-Closing Tax Period" means any Tax period ending on or before the close
of business on the Closing Date.

     "Tax" means (i) any net income,  alternative  or add-on  minimum tax, gross
income, gross receipts, sales, use, ad valorem, value added, franchise, profits,
license,  withholding  on amounts  paid to or by the Company or any  Subsidiary,
payroll,  employment,  excise, severance, stamp, occupation,  premium, property,
environmental  or windfall profit tax, custom,  duty or other tax,  governmental
fee or other like assessment or charge of any kind whatsoever, together with any
interest or any penalty,  addition to tax or  additional  amount  imposed by any
governmental authority (a "Taxing Authority")  responsible for the imposition of
any such tax  (domestic  or  foreign),  (ii)  liability  of the  Company  or any
Subsidiary  for the  payment of any  amounts of the type  described  in (i) as a
result of being a member of an  affiliated,  consolidated,  combined  or unitary
group for any period during the Tax  Indemnification  Period and (iii) liability
of the  Company or any  Subsidiary  for the  payment of any  amounts of the type
described in (i) as a result of any express or implied  obligation  to indemnify
any other Person.

     "Tax  Indemnification  Period" means (i) any  Pre-Closing Tax Period of the
Company or any Subsidiary, (ii) with respect to any Tax described in clause (ii)
of the  definition of "Tax",  any  Pre-Closing  Tax Period of the Company or any
Subsidiary  and the  taxable  year of any  member of a group  described  in such
clause (ii) which  includes  (but does not end on) the Closing  Date,  and (iii)
with respect to any Tax  described in clause (iii) of the  definition  of "Tax",
the  survival  period of the  indemnification  obligation  under the  applicable
contract.

     "Tax  Sharing  Agreement"  means  the  Amended  and  Restated  Tax  Sharing
Agreement executed by the Company on September 14, 1995.

     8.2  Tax  Representations.  Except  as  set  forth  in  Section  8.2 of the
Disclosure

                                       24

<PAGE>



Schedule,  (i)  all  Tax  returns,  statements,  reports  and  forms  (including
estimated  tax  returns  and  reports)  required  to be filed  with  any  Taxing
Authority  with  respect  to any  Pre-Closing  Tax Period by or on behalf of the
Company or any Subsidiary  (collectively,  the "Returns"),  have been filed when
due in accordance  with all  applicable  laws;  (ii) the Returns are correct and
complete in all material  respects;  (iii) the Company and the Subsidiaries have
timely paid,  withheld or made  provision for all Taxes shown as due and payable
on the Returns that have been filed;  (iv) the Company and the Subsidiaries have
made or will on or before the Closing Date make  provision for all Taxes payable
by the Company and the Subsidiaries for any Pre-Closing Tax Periods for which no
Return has yet been filed, excluding Taxes to the extent that Seller is required
under this Article VIII to pay, reimburse or indemnify Purchaser  therefor;  (v)
the charges, accruals and reserves for Taxes with respect to the Company and its
Subsidiaries  for any  Pre-Closing  Tax  Period  (excluding  any  provision  for
deferred  income taxes and excluding Taxes to the extent that Seller is required
under this Article  VIII to pay,  reimburse  or  indemnify  Purchaser  therefor)
reflected on the books of the Company and the Subsidiaries are adequate to cover
such Taxes;  (vi) all Returns filed with respect to taxable years of the Company
and the Subsidiaries  through the taxable year ended December 31, 1987 have been
examined and closed or are Returns  with-respect to which the applicable  period
for  assessment  under  applicable  law,  after giving  effect to  extensions or
waivers, has expired; (vii) neither the Company nor any Subsidiary is delinquent
in the payment of any Tax or has requested any extension of time within which to
file or send any Return,  which Return has not since been filed or sent;  (viii)
there are no  requests  for  rulings in respect of any Tax  pending  between the
Company or any Subsidiary and any Taxing Authority;  (ix) there are no liens for
Taxes upon the assets of the Company or any Subsidiary  except liens for current
Taxes not yet due; (x) Seller is not subject to  withholding  under Section 1445
of the Code with respect to any transaction contemplated hereby; (xi) since June
9,  1988,  neither  the  Company  nor any  Subsidiary  has been a  member  of an
affiliated  group other than one of which either  Aetna Inc. or Aetna  Services,
Inc.  (formerly Aetna Life and Casualty Company) was the common parent, or filed
or been included in a combined,  consolidated  or unitary  Return other than one
filed by Aetna, Inc. or Aetna Services,  Inc.  (formerly Aetna Life and Casualty
Company);  (xii) neither the Company nor any  Subsidiary is currently  under any
contractual obligation to indemnify any other Person with respect to Taxes or is
a party to any agreement,  other than the Tax Sharing  Agreement,  providing for
payments  with  respect to taxable  income or Taxes;  (xiii) no issues have been
raised in  writing  (and are  currently  pending)  by any  taxing  authority  in
connection  with any of the Tax  Returns  referred  to in  clause  (i),  and all
deficiencies  asserted or assessments  made as a result of any  examination by a
taxing  authority  of such Tax  Returns  have been  paid in full;  and (xiv) the
information  provided by Seller to Purchaser regarding (x) Seller's tax basis in
the stock of the Company and the  Subsidiaries,  (y) the tax basis of the assets
of the Company and the  Subsidiaries,  and (z) the state tax position of Seller,
the Company and the Subsidiaries,  is true and accurate as of the date hereof or
as of the relevant date specified therein in all material respects.

     8.3  Elections.  (i) Each of Seller and  Purchaser  shall  make  timely and
irrevocable  elections under Section 338(h)(10) of the Code and, if permissible,
similar  elections  under any  applicable  state or local  income  tax laws with
respect to the Company and each Subsidiary. Seller will not, and will not permit
the Company or any Subsidiary to take, cause or permit to be taken any

                                       25

<PAGE>



action  that would  disqualify  this  transaction  as a deemed  asset sale under
Section  338(h)(10) of the Code.  Each of Seller and Purchaser  shall report the
transaction  consistent  with such  elections  under  Section  338(h)(10) or any
similar  state or local  tax  provision  (the  "Elections")  and  shall  take no
position contrary thereto unless and to the extent required to do so pursuant to
a Final  Determination.  Seller  and  Purchaser  agree  that as a result  of the
Elections,  the deemed asset sales resulting from the Elections must be included
in the final  Return of the Company for the  Pre-Closing  Tax period to be filed
with any  Taxing  Authority  of a  jurisdiction  for  which  the  Elections  are
applicable.

     (ii) Each of Seller and Purchaser  shall execute at the Closing any and all
forms  necessary to effectuate  the Elections  (including,  without  limitation,
Internal  Revenue  Service  Form 8023-A and any similar  forms under  applicable
state and local income tax laws (the "Section 338  Forms")).  Each of the Seller
and the  Purchaser  shall cause the Section 338 Forms to be duly  executed by an
authorized  person  and shall  duly and  timely  file the  Section  338 Forms in
accordance with applicable Tax laws and the terms of this Agreement.

     (iii) Each of Seller and  Purchaser  agree that in making the  Elections it
shall  report the  Aggregate  Deemed  Sale Price (as  defined  under  applicable
Treasury  Regulations)  of the assets of the Company (the "ADSP") as  calculated
(x) by using only the  Closing  Payment,  as  adjusted  pursuant  to Section 2.4
hereof,  as the purchase  price of the Shares and (y) by not taking into account
as an assumed  liability  any  liability  for Taxes to the extent that Seller is
required  under this  Article  VIII to pay,  reimburse  or  indemnify  Purchaser
therefor. Each of Seller and Purchaser agrees to allocate such ADSP as set forth
in Section  8.3 of the  Disclosure  Schedule,  which  shall be  prepared  by the
parties prior to the Closing Date and which shall  reflect an allocation  agreed
to by the parties.  Each of Seller and Purchaser will reflect such allocation in
all  applicable  tax returns filed by any of them,  including but not limited to
the Section 338 Forms.  Each of Seller and  Purchaser  shall not take a position
before any Taxing Authority or otherwise  (including in any Return) inconsistent
with such  allocation  unless and to the extent  required to do so pursuant to a
Final Determination.

     8.4  Termination of Existing Tax Sharing  Agreements.  Any and all existing
tax  sharing  agreements  or  arrangements  binding  the  Company  or any of its
Subsidiaries (including,  without limitation, the Tax Sharing Agreement) and any
other  agreement,  express  or  implied,  relating  to taxable  income  shall be
terminated as of the Closing Date.

     8.5 Tax Returns.  (a) Seller  shall  timely  prepare all Tax Returns of the
Company and the Subsidiaries  for all Pre-Closing Tax Periods.  Such Tax Returns
shall be prepared in an manner  consistent  with past  practice and, on such Tax
Returns, no positions shall be taken,  elections made, or method adopted that is
inconsistent with positions taken,  elections made, or methods used in preparing
similar Tax Returns in prior  periods  without  the consent of  Purchaser  which
consent shall not be unreasonably withheld.

     (b) Seller  shall file or cause to be filed when due all Tax Returns of the
Company and the Subsidiaries for all Pre-Closing Tax Periods that are filed on a
consolidated,  combined,  or unitary basis by the Seller or the parent of Seller
(including all federal income Tax Returns), and

                                       26

<PAGE>



Seller  shall be  responsible  for the  contents of such Tax Returns and for the
payment of all Taxes shown to be due  thereon;  provided,  however,  that Seller
shall  furnish  Purchaser and the Company with copies of such Tax Returns of the
Company  and the  Subsidiaries,  on a  separate  company  basis,  within 30 days
following  the filing  date.  Seller  shall  prepare  and send to the Company as
promptly as  practicable  but at least five  business days prior to the due date
all other Tax  Returns  that are  required  to be filed by the  Company  and the
Subsidiaries  for all Pre-Closing Tax Periods,  and Seller or, after the Closing
Date, Purchaser shall file or cause to be filed when due such other Tax Returns.
At least five  business  days prior to the date on which the Taxes shown on such
other Tax Returns are required to be paid,  Seller shall provide  Purchaser with
the funds for the payment of all Taxes unpaid as of the Closing Date shown to be
due on such other Tax Returns and Purchaser shall be responsible for the payment
of all Taxes  unpaid as of the  Closing  Date  shown to be due on such other Tax
Returns,  provided that Purchaser's obligation to pay such Taxes shall not limit
Purchaser's  indemnification  rights against Seller  pursuant to Section 8.9. If
any such Tax Return shows an overpayment  of Taxes due,  Seller may credit (upon
written  notice to  Purchaser  to that  effect)  the amount of such  overpayment
against any payment  otherwise due from Seller to Purchaser under this Agreement
and any  amount  of the  overpayment  not so  credited  shall be  reimbursed  by
Purchaser to Seller no later than five  business days after the later of receipt
by Purchaser of Seller's  written request for  reimbursement  and the earlier of
Purchaser's  receipt  of a  refund  on  account  of  such  overpayment  and  the
application  of such  overpayment  to offset a Tax  liability of Purchaser or an
Affiliate of Purchaser otherwise due.

     (c) Purchaser shall prepare and file all Tax Returns of the Company and the
Subsidiaries for all Post-Closing Tax Periods. As promptly as practicable but at
least five business  days before the due date,  Purchaser  shall furnish  Seller
with  copies of all Tax  Returns of the  Company  and the  Subsidiaries  for any
Post-Closing  Tax Period that  includes the Closing Date. At least five business
days prior to the date on which the Taxes shown on such Tax Return are  required
to be paid,  Seller shall  provide  Purchaser  with funds for the payment of all
Taxes  shown  to be due  on  such  Tax  Returns  that  are  attributable  to the
Pre-Closing Tax Period and Purchaser shall be responsible for the payment of all
Taxes shown to be due on such Tax Returns,  provided that Purchaser's obligation
to pay such Taxes shall not limit  Purchaser's  indemnification  rights  against
Seller pursuant to Section 8.9.

     8.6 Other Tax Matters.  (a) All transfer,  documentary,  sales, use, stamp,
and registration  Taxes and fees (including any penalties and interest) incurred
in connection with this Agreement, shall be paid one-half by Seller and one-half
by Buyer when due, and each party will,  at its own expense,  file all necessary
Returns and other documentation with respect to all such transfer,  documentary,
sales, use, stamp, registration and other taxes and fees.

     (b)Certification  to the effect  that  Seller is not a "foreign  person" as
defined in Section  1445 of the Code shall be signed by Seller and  delivered to
Purchaser prior to the Closing.

     8.7  Cooperation on Tax Matters.  (a) Purchaser and Seller shall  cooperate
fully,  as and to the  extent  reasonably  requested  by  the  other  party,  in
connection with any audit, litigation

                                       27

<PAGE>



or other  proceeding  with  respect  to Taxes  and with the  preparation  of any
Returns.  Such  cooperation  shall  include  the  retention  and (upon the other
party's  request) the provision of records and information  which are reasonably
relevant to any such audit,  litigation or other proceeding and making employees
available on a mutually  convenient basis to provide additional  information and
explanation of any material provided hereunder. The Company and Seller agree (i)
to retain all books and records  with  respect to Tax matters  pertinent  to the
Company and its  Subsidiaries  relating to any  Pre-Closing  Tax Period,  and to
abide by all record retention agreements entered into with any Taxing Authority,
and  (ii)  to  give  the  other  party   reasonable   written  notice  prior  to
transferring,  destroying or  discarding  any such books and records and, if the
other party so  requests,  the Company or Seller,  as the case may be, shall not
destroy or discard  such books and  records  and shall  allow the other party to
take possession of such books and records.

     (b)Purchaser  and Seller  further  agree,  upon request,  to use their best
efforts  to obtain  any  certificate  or other  document  from any  governmental
authority  or customer of the Company or any  Subsidiary  or any other Person as
may be necessary to mitigate,  reduce or eliminate any Tax that could be imposed
(including,  but not limited to, with respect to the  transactions  contemplated
hereby).

     (c)Purchaser and Seller further agree,  upon request,  to provide the other
party with all information  that either party may be required to report pursuant
to section 6043 of the Code and all Treasury Regulations promulgated thereunder.

     8.8 Certain  Disputes.  Disputes  arising  under this  Article VIII and not
resolved by mutual  agreement as stated herein shall be resolved by a nationally
recognized  accounting firm with no affiliation or relationship  whatsoever with
Purchaser,  Seller or their  Affiliates (the  "Accounting  Referee")  chosen and
mutually  acceptable  to both  Purchaser and Seller within five business days of
the  date on  which  the need to  choose  the  Accounting  Referee  arises.  The
Accounting Referee shall resolve any disputed items within 30 days of having the
item referred to it pursuant to such  procedures  as it may require.  The costs,
fees and expenses of the Accounting  Referee shall be borne equally by Purchaser
and Seller.

     8.9 Tax Indemnification. (a) The covenants, agreements, representations and
warranties  of the  parties  hereto  contained  in this  Article  VIII or in any
certificate  or other  writing  delivered  pursuant to this  Article  VIII or in
connection  herewith  shall survive the Closing until February 28, 1999 or until
expiration of the applicable statutory period of limitation, if later.

     (b) Seller hereby indemnifies the Purchaser Indemnified Parties against and
agrees  to hold  them  harmless  from  (i) any  (x)  Tax of the  Company  or any
Subsidiary and (y) liabilities,  costs, expenses (including,  without limitation
reasonable expenses of investigation and attorneys' fees and expenses),  losses,
damages, assessments, settlements or judgments arising out of or incident to the
imposition, assessment or assertion of any Tax, and any liability as transferee,
in each case related to the Tax Indemnification Period and in each case incurred
or suffered by Purchaser,  any of its Affiliates or, effective upon the Closing,
the Company or any Subsidiary; and

                                       28

<PAGE>



(ii) any and all  Damages  incurred or  suffered  by the  Purchaser  Indemnified
Parties arising out of any misrepresentation or breach of warranty,  covenant or
agreement  made or to be performed by Seller  pursuant to this Article VIII. The
indemnification  set forth in the  preceding  sentence  shall not apply to or in
respect of Taxes of the Company or any  Subsidiary to the extent that such Taxes
were funded by a payment by Seller to Purchaser  pursuant to Sections  8.5(b) or
8.5(c).  Purchaser hereby indemnifies the Seller Indemnified Parties against and
agrees to hold them  harmless  from any and all Damages  incurred or suffered by
the Seller Indemnified Parties arising out of any misrepresentation or breach of
warranty, covenant or agreement made or to be performed by Purchaser pursuant to
this Article VIII.

     (c)For  purposes  of Section 8.5 and this  Section  8.9, in the case of any
Taxes that are imposed on a periodic  basis and are payable for a taxable period
that includes  (but does not end on) the Closing  Date,  the portion of such Tax
related to the portion of such taxable  period  ending on the Closing Date shall
(x) in the case of any Taxes  other than Taxes  based upon or related to income,
be deemed to be the amount of such Tax for the entire taxable period  multiplied
by a fraction the numerator of which is the number of days in the taxable period
ending on the Closing Date and the denominator of which is the number of days in
the entire taxable period,  and (y) in the case of any Tax based upon or related
to income be deemed  equal to the amount  which would be payable if the relevant
taxable  period  ended on the Closing  Date.  Any credits  relating to a taxable
period  that begins  before and ends after the Closing  Date shall be taken into
account as though the relevant  taxable  period ended on the Closing  Date.  All
determinations  necessary to give effect to the foregoing  allocations  shall be
made  in a  manner  consistent  with  prior  practice  of the  Company  and  its
Subsidiaries.

     (d)Purchaser agrees to give prompt notice to Seller of the assertion of any
claim, or the commencement of any suit, action or proceeding in respect of which
indemnity may be sought hereunder,  which Purchaser deems to be within the ambit
of this Section 8.9 (specifying with  particularity the basis therefor) and will
give Seller such information with respect thereto as Seller may request.  Seller
may, at its own expense,  (i) participate in and, (ii) upon notice to Purchaser,
assume the defense of any such suit,  action or  proceeding;  provided that, (y)
Seller shall  thereafter  consult with  Purchaser  upon  Purchaser's  reasonable
request  for such  consultation  from time to time with  respect  to such  suit,
action or  proceeding  and (z) Seller shall not,  without  Purchaser's  consent,
which consent shall not be unreasonably  withheld,  agree to any settlement with
respect to any Tax if such  settlement  could  materially  adversely  affect the
past,  present or future Tax liability of Purchaser,  any of its  Affiliates or,
upon the Closing, the Company or any Subsidiary. If Seller assumes such defense,
Purchaser  shall have the right (but not the duty) to participate in the defense
thereof and to employ  counsel,  at its own expense,  separate  from the counsel
employed by Seller.  Whether or not Seller  chooses to defend or  prosecute  any
claim,  all of the parties hereto shall  cooperate in the defense or prosecution
thereof.

     (e)Seller agrees to give prompt notice to Purchaser of the assertion of any
claim, or the commencement of any suit, action or proceeding in respect of which
indemnity may be sought  hereunder  which Seller deems to be within the ambit of
this Section 8.9 (specifying with

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<PAGE>



particularity  the basis therefor) and will give Purchaser such information with
respect thereto as Purchaser may request. Purchaser may, at its own expense, (i)
participate  in and, (ii) upon notice to Seller,  assume the defense of any such
suit,  action or  proceeding;  provided  that,  (y) Purchaser  shall  thereafter
consult with Seller upon Seller's  reasonable request for such consultation from
time to time with respect to such suit,  action or proceeding  and (z) Purchaser
shall not,  without  Seller's  consent,  which consent shall not be unreasonably
withheld,  agree to any  settlement  with respect to any Tax if such  settlement
could materially  adversely affect the past,  present or future Tax liability of
Seller or any of its Affiliates. If Purchaser assumes such defense, Seller shall
have the right (but not the duty) to participate  in the defense  thereof and to
employ  counsel,  at its own  expense,  separate  from the  counsel  employed by
Purchaser.  Whether or not  Purchaser  chooses to defend or prosecute any claim,
all of the parties hereto shall cooperate in the defense or prosecution thereof.

     (f)Seller  shall not be liable  under this  Section 8.9 with respect to any
Tax resulting from a claim or demand the defense of which it was not offered the
opportunity  to assume as provided  under  Section  8.9(d)  hereof to the extent
Seller's  liability  under  Section  8.9(a) is  adversely  affected  as a result
thereof.  No  investigation by Purchaser or any of its Affiliates at or prior to
the Closing Date shall relieve Seller of any liability hereunder.

     (g)  Purchaser  shall not be liable  under this Section 8.9 with respect to
any Tax resulting from a claim or demand the defense of which it was not offered
the  opportunity to assume as provided under Section 8.9(e) hereof to the extent
Purchaser's  liability  under Section  8.9(a) is adversely  affected as a result
thereof.  No investigation by Seller or any of its Affiliates at or prior to the
Closing Date shall relieve Purchaser of any liability hereunder.

     (h) Any amounts owed by any party to any other party under this Section 8.9
shall be paid  within 10  business  days of notice  from such other  party.  Any
amounts  which are not paid within such 10-day  period shall accrue  interest at
the monthly "Federal  Short-Term  Rate" under Section  1274(d)(1)(C) of the Code
applicable to any period for which such intent is payable.

     (i) The indemnification  provided for hereunder shall not be subject to the
provisions  of  Article  XI  and  shall   constitute  a  separate  and  distinct
indemnification obligation of the parties hereto.

                                   ARTICLE IX

                                Employee Benefits

     9.1 Employee  Benefits  Definitions.  The following  terms, as used herein,
have the following meanings:

     "Benefit Arrangement" means any employment,  severance or similar contract,
arrangement  or  policy,  or any plan or  arrangement  providing  for  severance
benefits, insurance coverage (including any self-insured arrangements), workers'
compensation,  disability benefits, supplemental unemployment benefits, vacation
benefits, retirement benefits, deferred compensation, profit-sharing,

                                       30

<PAGE>



bonuses,  stock options,  stock appreciation  rights or other forms of incentive
compensation or post-retirement insurance,  compensation or benefits that (i) is
not an Employee Plan and (ii) is entered into or maintained, as the case may be,
by the Seller or any of its ERISA  Affiliates  and (iii)  covers any employee or
former employee of the Company or any Subsidiary of the Company.

     "ERISA" means the Employee Retirement Income Security Act of 1974.

     "ERISA Affiliate" of any entity means any other entity which, together with
such  entity,  would be treated as a single  employer  under  Section 414 of the
Code.

     "Individual  Account Plan" means the Aetna  Incentive  Savings Plan and the
U.S. Healthcare Savings Plan.

     "Multiemployer Plan" means each Employee Plan that is a multiemployer plan,
as defined in Section 3(37) of ERISA.

     "PBGC" means the Pension Benefit Guaranty Corporation.

     "Pension Plan" means the Pension Plan for Employees of Aetna Services, Inc.
and the Pension Plan for Employees of U.S. Healthcare.

     "Title IV Plan" means an Employee Plan, other than any Multiemployer  Plan,
subject to Title IV of ERISA.

     9.2. ERISA  Representations.  (a) Section 9.2(a) of the Disclosure Schedule
is an accurate and complete list of each "employee  benefit plan", as defined in
Section 3(3) of ERISA,  that (i) is subject to any  provision of ERISA,  (ii) is
maintained,  administered  or  contributed  to by the Seller or any of its ERISA
Affiliates  and (iii) covers any  employee or former  employee of the Company or
any Subsidiary.  Such plans are hereinafter referred to as the "Employee Plans".
Seller has furnished or made  available to Purchaser  copies of such plans (and,
if applicable,  related trust agreements) and all amendments thereto and written
interpretations thereof together with (i) the most recent annual report prepared
in connection  with any such plan (Form 5500 including  accompanying  schedules)
and (ii) if applicable,  the most recent actuarial  valuation report prepared in
connection  with  any such  plan.  Section  9.2(a)  of the  Disclosure  Schedule
identifies each Employee Plan that is a Title IV Plan.

     (b) Neither the Seller nor any ERISA  Affiliate  of Seller has incurred any
liability under Title IV of ERISA arising in connection with the termination of,
or complete or partial  withdrawal from, any plan covered or previously  covered
by Title IV of ERISA that could  become a liability  of the  Purchaser or any of
its ERISA Affiliates after the Closing Date.

     (c) Each  Employee  Plan that is intended  to be  qualified  under  Section
401(a)  of the Code and  each  amendment  thereto,  has been  determined  by the
Internal Revenue Service to be so qualified and no such  determination  has been
revoked  and  no  plan  amendment  that  is  not  the  subject  of  a  favorable
determination  letter would affect the qualification of the plan or the validity
of the plan's favorable determination letter. Seller has provided Purchaser with
the most recent  determination  letters of the Internal Revenue Service relating
to each such Employee Plan. Each Employee Plan has been

                                       31

<PAGE>



maintained in substantial  compliance  with its terms and with the  requirements
prescribed by any and all applicable  statutes,  orders,  rules and regulations,
including but not limited to ERISA and the Code.
No Employee Plan is a Multiemployer Plan.

     (d) Section 9.2(d) of the  Disclosure  Schedule is an accurate and complete
list of each Benefit  Arrangement.  Seller has  furnished  or made  available to
Purchaser copies of each Benefit Arrangement.  Each Benefit Arrangement has been
maintained in substantial  compliance  with its terms and with the  requirements
prescribed by any and all applicable statutes, orders, rules and regulations.

     (e) Except as set forth in Section 9.2(e) of the Disclosure Schedule, there
is no contract, agreement, plan or arrangement with respect to which the Company
or any  Subsidiary  has any  liability  that  provides  for the  payment  to any
employee  or former  employee  of the  Company  or any  Subsidiary  of more than
$75,000 in any calendar year.

     (f) Except as set forth in Section  9.2(f) of the Disclosure  Schedule,  no
employee  or former  employee  of the  Company or any of its  Subsidiaries  will
become  entitled to any bonus,  retirement,  severance,  job security or similar
benefit solely as a result of the transactions contemplated hereby.

     (g) Except as set forth in Section  9.2(g) of the Disclosure  Schedule,  to
the knowledge of Seller, there are no governmental inspections,  investigations,
audits or  examinations  currently  pending or  threatened  with  respect to any
Employee Plan or Benefit  Arrangement.  There exists no material action, suit or
claim (other than routine claims for benefits) with respect to any Employee Plan
or Benefit  Arrangement pending or to the knowledge of Seller threatened against
any of such plans or arrangements.

     (h)  Except as to  matters  described  in  Section  3.10 of the  Disclosure
Schedule,  to the knowledge of Seller,  there are no facts or events,  including
the consummation of the transaction  contemplated by this Agreement,  that could
lead to the imposition of any material  liability on the Purchaser or any of its
ERISA  Affiliates,  of  whatever  nature  including  the  provision  of employee
benefits  with  respect  to the  employment  of any  employees  of Seller or its
Subsidiaries who are not Transferred Employees.

     (i) Except as provided in Section  9.6(a),  all  material  benefits due and
payable to any of the Transferred Employees under the Employee Plans and Benefit
Arrangements  as of the Closing Date will be paid thereto by or on behalf of the
Seller.

     9.3.  Employees.  On or prior to the  Closing  Date,  Seller will cause all
employees  of the  Seller  or any of its  Subsidiaries  identified  by Seller on
Section 9.3 of the  Disclosure  Schedule  (by name and job title) as  performing
substantially  all of their  services to the Company's  business units to become
employees  of the  Company  or one of its  Subsidiaries.  With  respect  to each
individual  who, as of the Closing Date, is employed  (including  persons absent
from  active  service for any reason,  including,  but not limited to,  illness,
disability,  family and medical leave or other leave of absence, whether paid or
unpaid) by the Company or any of its  Subsidiaries or is otherwise  described in
Section 9.3 of the Disclosure Schedule ("Transferred  Employees"),  Purchaser or
one of its Affiliates  shall  continue the  employment of each such  Transferred
Employee, and provide each such Transferred Employee with at

                                       32

<PAGE>



least the level of base  salary per annum as in effect on the  Closing  Date for
such Transferred Employee, in each case for the longer of (i) three months after
the Closing Date and (ii) the remainder of the calendar year ending December 31,
1997.  Nothing  in this  Section  9.3 is  intended  to, or shall,  require  such
employer to employ a  Transferred  Employee on a basis other than as an employee
at will.

     9.4.  Pension Plan.  Seller and its Affiliates shall retain all liabilities
and obligations in respect of benefits accrued by both Transferred Employees and
former employees of the Company and its Subsidiaries  under the Pension Plan. No
Pension Plan assets shall be  transferred  to Purchaser or any of its Affiliates
or to any  plan of  Purchaser  or its  Affiliates.  It is  understood  that  the
Transferred  Employees will be fully vested in their accrued  benefits under the
Pension Plan as of the Closing Date.

     9.5.  Individual  Account  Plan.  Seller shall retain all  liabilities  and
obligations in respect of benefits  accrued by Transferred  Employees  under the
Individual  Account Plan. It is understood  that the  Transferred  Employees are
fully vested (or will become fully vested) in their account  balances  under the
Individual  Account Plan. On the Closing Date,  Seller shall take such action as
may be necessary,  if any, to permit each  Transferred  Employee to exercise his
rights  under  the  Individual  Account  Plan to effect a  distribution  of such
Transferred Employee's vested account balances under the Individual Account Plan
or to effect a tax-free  rollover of the taxable portion of the account balances
into an  eligible  retirement  plan,  if any,  (within  the  meaning  of Section
401(a)(31)  of the Code,  a "Direct  Rollover")  maintained  by  Purchaser  or a
subsidiary of Purchaser (the  "Purchaser  Plan") or to an individual  retirement
account.  Seller and Purchaser  shall work  together in order to facilitate  any
such  distribution  or  rollover  and to  effect a  Direct  Rollover  for  those
participants  who elect to roll over their  account  balances  directly into the
Purchaser  Plan in  accordance  with the terms and  conditions  of the Purchaser
Plan;  provided that nothing  contained herein shall obligate the Purchaser Plan
to accept a Direct  Rollover in a form other than cash or obligate  Purchaser to
establish or maintain a Purchaser Plan.

     9.6.  Other Employee Plans and Benefit  Arrangements.  (a) Purchaser  shall
assume and be liable for, and,  where  appropriate,  shall cause the Company and
its  Subsidiaries  to perform  all  obligations  in  respect of the  Transferred
Employees under the employee  agreements and  arrangements  described in Section
9.6(a)  of the  Disclosure  Schedule  (which  by  execution  of this  Agreement,
Purchaser or the Company,  as  applicable,  expressly  assumes as of the Closing
Date). Except to the extent specifically set forth herein and in Section 9.9, it
is understood  that  Purchaser  shall not assume and shall not be liable for any
obligations, responsibilities or liabilities under the Employee Plans or Benefit
Arrangements of Seller.

     (b) Subject to the provisions of Section 9.6(a),  and except as provided in
Sections 9.4 and 9.5,  Purchaser  shall assume and be liable for all liabilities
(including legal costs and fees) involving any Transferred  Employee relating to
any claim arising under any federal, state or local statute (including,  without
limitation,  Title VII of the Civil Rights Act of 1964,  the Civil Rights Act of
1991, the Age  Discrimination  in Employment Act of 1967, the Equal Pay Act, the
Americans  with  Disabilities  Act of 1990,  the Fair Labor  Standards  Act, the
Family and Medical Leave Act, and all other  statutes  regulating  the terms and
conditions of employment),  regulation,  executive order or ordinance, under the
common  law or in  equity  (including  any  claims  for  wrongful  discharge  or
otherwise), or under any policy, agreement, understanding or promise, written or
oral,  formal or  informal,  between  the  Company  or any  Subsidiary  and such
Transferred  Employee,  including  all such  liabilities  that  relate to events
occurring  on or  prior to the  Closing  Date or which  arise by  reason  of the
transactions contemplated by

                                       33

<PAGE>



this Agreement.  Nothing in the immediately  preceding sentence shall affect the
indemnification  rights that the parties would otherwise be entitled pursuant to
Article XI of this Agreement.

     (c) For the  calendar  year in which the Closing  Date  falls,  Transferred
Employees  shall be eligible to accrue the number of  vacation  days  calculated
under the Company's  vacation policy in effect  immediately prior to the Closing
Date,  a copy of which is attached to this  Agreement  as Section  9.6(c) of the
Disclosure Schedule.  Subject to Purchaser's policies and procedures  respecting
vacation time, so long as a Transferred  Employee is employed by the Company,  a
Subsidiary or any Affiliate of Purchaser, such Transferred Employee shall accrue
at least as many  vacation days as such person was scheduled to accrue under the
Company's  vacation policy as of the beginning of such calendar year.  Purchaser
will assume the vacation  liability  accrued by Transferred  Employees as of the
Closing Date in a manner consistent with the Company's existing policy as of the
date hereof.

     9.7. Plans Following the Closing.  (a) For the period from the Closing Date
through the date 12 months  after the  Closing  Date,  Purchaser  will cause the
Company to maintain  employee  benefit plans and arrangements for the benefit of
the Transferred Employees that are substantially  comparable in the aggregate to
the  Employee  Plans.  Notwithstanding  the  foregoing,  Purchaser  shall not be
obligated  or  required to  establish  or  maintain a defined  benefit  plan (as
defined in ERISA  Section  3(35) or Code Section  414(j)) for the benefit of any
Transferred  Employee.  Purchaser  will cause the  Company  to give  Transferred
Employees  full  credit for all  purposes,  including  eligibility,  vesting and
benefit accrual, under any such plans or arrangements  maintained by the Company
pursuant to this Section 9.7 for such Transferred  Employees' service recognized
for such purposes under the Employee Plans and Benefit Arrangements.

     (b) Without  limiting the generality of the foregoing,  for the period from
the Closing Date through the date 12 months  after the Closing  Date,  Purchaser
will maintain and make available to Transferred  Employees (i) medical,  dental,
and short-term disability plans that are substantially  comparable to the Seller
plans  identified in Section  9.7(b)(i) of the Disclosure  Schedule  without any
increase in required  contributions  by  Transferred  Employees  for  comparable
benefits in  accordance  with  Section 9.8 and (ii) a severance  package that is
identical to the Seller  severance plan  described in Section  9.7(b)(ii) of the
Disclosure Schedule.

     (c) For the period  beginning on the date 12 months after the Closing Date,
Purchaser  shall  provide  benefit  plans  and  programs  that  are at  least as
favorable as such plans and programs  that are  available to other  employees of
the Purchaser and its Affiliates generally and give Transferred Employees credit
for  service  with  Seller and any of its  affiliates  as well as  service  with
Purchaser  and any of its  Affiliates  for all purposes  including  eligibility,
vesting, and benefit accrual.

     (d)  Purchaser  shall cause any  Transferred  Employee who is on short-term
disability on the Closing Date to receive without  interruption on and after the
Closing Date short-term disability benefits provided by Purchaser  substantially
identical  to the  short-term  disability  benefits  provided  by Seller for the
Transferred  Employee.  Seller shall have no liability to Purchaser with respect
to such  benefits  provided by Purchaser.  If a Transferred  Employee who was on
short-term  disability  on the Closing Date  subsequently  becomes  eligible for
coverage  and  receives  benefits  under  Seller's  long-term  disability  plan,
Purchaser  shall have no  liability  to Seller  with  respect to such  long-term
disability coverage.

                                       34

<PAGE>



     9.8. Medical and Dental Insurance  Coverage.  (a) Purchaser shall cause all
employee  health  and  dental  plans  in  which  Transferred   Employees  become
participants  on or after the  Closing  Date to waive  any and all  pre-existing
condition  exclusions and waiting period  requirements and to recognize,  to the
extent such participation  commences other than at the beginning of a plan year,
expenses  previously  incurred for the period from the beginning of the calendar
year in which  the  Closing  Date  falls to the  Closing  Date for  purposes  of
applicable  deductible  rules to the extent such expenses are  recognized  under
Purchaser's plans in effect  immediately prior to the Closing Date. In addition,
Purchaser will continue short-term  disability benefits under the Company's sick
pay plan for any Transferred  Employee receiving such benefits as of the Closing
Date for so long as such Transferred Employee remains eligible for such benefits
(not to exceed 26 weeks).  Through the date 12 months  after the  Closing  Date,
Transferred  Employees  shall not be required to make  contributions  toward the
cost of the  applicable  coverage under  Purchaser's  health and dental plans in
excess of the  monthly  amounts,  if any,  they would have been  required to pay
under Seller's medical and dental insurance plans prior to the Closing Date.

     (b) For the period from the Closing  Date  through the date 12 months after
the Closing Date,  Purchaser agrees that in respect of any Transferred  Employee
who as of the Closing  Date is involved in a course of treatment  covered  under
Seller's  medical plans,  Purchaser  shall take no action in connection with the
continuation  of, or  establishment  of, coverage of such  Transferred  Employee
under Purchaser medical plans which will cause such Transferred Employee to have
to alter such  course of  treatment,  including  but not limited to, a change in
physician  or  location  of  covered  treatment,  in order  for such  course  of
treatment to be covered under the applicable Purchaser medical plan.

     9.9. Assumption of Liabilities. Except as otherwise provided in Section 9.4
or 9.5 or elsewhere  herein,  Purchaser agrees that,  effective on and after the
Closing  Date,  the Company and its  Subsidiaries  shall have all  liability and
responsibility  with respect to the  Transferred  Employees and Seller shall not
retain any, and shall not be deemed to have  retained  any, of such  liabilities
and responsibilities.  With respect to Transferred Employees,  and except to the
extent  provided in Section  9.6(a),  Seller shall retain those  obligations and
liabilities   relating  to  or  arising  under  any  Employee  Plan  or  Benefit
Arrangement that are attributable to benefits accrued or otherwise payable on or
prior to the  Closing  Date and are not  accrued as a  liability  on the Closing
Balance  Sheet and that  either  (i) are with  respect  to an  Employee  Plan or
Benefit  Arrangement set forth in Section 9.9 of the Disclosure Schedule or (ii)
arise  from   claims,   including   claims   challenging   the   administration,
interpretation,  or statutory or  regulatory  compliance  of an Employee Plan or
Benefit  Arrangement,  that are not routine  claims for benefits in the ordinary
course of operation of the Employee Plan or Benefit  Arrangement.  Except to the
extent  provided in the preceding  sentence or in Section 9.4 or 9.5,  Purchaser
shall, as of the Closing Date,  assume all obligations and liabilities of Seller
and any of its  Affiliates  in  respect  of  Transferred  Employees  under  each
Employee  Plan and Benefit  Arrangement;  provided  that,  except as provided in
Section 9.6 or 9.7,  nothing  contained  herein shall constitute a commitment or
obligation  on the part of  Purchaser  to  continue  any such  Employee  Plan or
Benefit Arrangement after the Closing Date.

    9.10 Third Party Beneficiaries. No provision of this Article IX shall create
any third party  beneficiary  rights in any  employee or former  employee of the
Company (including any beneficiary or dependent thereof) in respect of continued
employment  or resumed  employment,  and no  provision  of this Article IX shall
create any rights in any such persons in respect of any benefits that may be

                                       35

<PAGE>



provided,   directly  or   indirectly,   under  any  Employee  Plan  or  Benefit
Arrangement.

                                    ARTICLE X

                              Conditions To Closing

     10.1 Conditions to Obligations of Each Party.  The obligations of Purchaser
and Seller to  consummate  the Closing are  subject to the  satisfaction  of the
following conditions:

          (a) Any  applicable  waiting  period under the HSR Act relating to the
     transactions contemplated hereby shall have expired or been terminated.

          (b) No provision of any  applicable law or regulation and no judgment,
     injunction, order or decree shall prohibit the consummation of the Closing,
     and no  proceeding  challenging  this  Agreement  or seeking  to  prohibit,
     prevent or materially  alter or delay,  or materially  impair the value of,
     the  transactions  contemplated  hereby shall have been  instituted  by any
     governmental body, agency or authority having proper jurisdiction and shall
     be pending.

          (c) All  actions by,  authorizations,  consents  or  approvals  of, or
     filings with any governmental body, agency,  official or authority required
     in order to permit the  consummation  of the Closing  shall have  occurred,
     been filed or been obtained.

     10.2 Conditions to Obligation of Purchaser.  The obligation of Purchaser to
consummate the Closing is subject to the  satisfaction of the following  further
conditions:

          (a)(i)Seller  shall have performed in all material respects all of its
     obligations  hereunder  required to be  performed  by it on or prior to the
     Closing Date, (ii) the  representations  and warranties of Seller contained
     in this Agreement shall be true and correct as of the Closing Date with the
     same effect as though such  representations and warranties had been made on
     and as of such time, other than  representations  and warranties that speak
     as of a specific  date or time  (which  need only be true and correct as of
     such date or time);  provided  that the  condition set forth in this clause
     (ii)  shall be deemed  satisfied  if the  facts,  events  or  circumstances
     underlying any inaccuracies in any such  representations  and warranties as
     of  the  Closing   Date   (without   giving   effect  to  any   materiality
     qualifications or materiality  exceptions contained therein),  individually
     or in the  aggregate,  could not  reasonably be expected to have a material
     adverse  effect on the business,  properties or financial  condition of the
     Company and the  Subsidiaries  taken as a whole and (iii)  Purchaser  shall
     have  received a  certificate  duly  executed by an  authorized  officer of
     Seller to the foregoing effect.

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<PAGE>



          (b)  Purchaser  shall have  received the stock books,  stock  ledgers,
     minute books and corporate seal of the Company and the Subsidiaries.

          (c) Purchaser shall have received with respect to the Company and each
     Subsidiary  (i) a copy of its  certificate  or articles  of  incorporation,
     including  all  amendments,  certified  by the  Secretary of State or other
     appropriate  official of the  jurisdiction  of its  incorporation  and (ii)
     certificates from the Secretary of State or other  appropriate  official of
     the jurisdiction of its  incorporation to the effect that such person is in
     good  standing  or  subsisting  in such  jurisdiction,  listing all charter
     documents of such person on file.

          (d)  Purchaser  shall have received a  certificate,  dated the Closing
     Date  and  executed  by the  Secretary  or an  Assistant  Secretary  of the
     Company, in form and substance customary for transactions of this type.

          (e)  Purchaser  shall have received (i) a copy of the  certificate  or
     articles of incorporation, including all amendments, of Seller certified by
     the  Secretary  of State  or other  appropriate  official  of the  State of
     Connecticut  and (ii)  certificates  from the  Secretary  of State or other
     appropriate  official of the State of Connecticut to the effect that Seller
     is in good standing or subsisting in such jurisdiction, listing all charter
     documents of Seller on file.

          (f)  Purchaser  shall have received a  certificate,  dated the Closing
     Date and executed by the Secretary or an Assistant  Secretary of Seller, in
     form and substance customary for transactions of this type.

          (g)  Aetna  U.S.   Healthcare   Inc.,   a   Pennsylvania   corporation
     ("Guarantor"), shall have executed and delivered to Purchaser the Guaranty,
     substantially in the form attached as Exhibit A.

          (h)  Guarantor  shall have  executed and  delivered  to Purchaser  the
     Master Service  Agreement,  substantially in the form attached as Exhibit B
     (the "Master Agreement").

          (i)  Guarantor  shall have  executed and  delivered  to Purchaser  the
     Transition Services Agreement,  substantially in the form of Exhibit C (the
     "Transition Services Agreement").

          (j)  Guarantor  or one of  its  Affiliates  shall  have  executed  and
     delivered  to  Purchaser  the  HMO  and  non-HMO  health  care  agreements,
     substantially  in  the  form  of  the  applicable  Exhibit  to  the  Master
     Agreement.

          (k)  Guarantor  shall have  executed and  delivered  to Purchaser  the
     Non-Competition Covenant, substantially in the form of Exhibit D.

                                       37

<PAGE>



          (l)  Since  the date of this  Agreement,  there  has been no  material
     adverse change in the business,  assets, condition (financial or otherwise)
     or results of  operations  of the Company and the  Subsidiaries  taken as a
     whole  (other  than as a  result  of  changes  (i) in  general  conditions,
     including laws and  regulations,  applicable to the  behavioral  healthcare
     industry or (ii) in general economic conditions).

          (m) The essential  software  without which the business of the Company
     and the  Subsidiaries  could not operate in the ordinary  course  listed on
     Section 10.2(m) of the Disclosure  Schedule (or its functional  equivalent)
     being  available  for license by Purchaser  or the Company on  commercially
     reasonable terms.

     10.3  Conditions  to  Obligation  of Seller.  The  obligation  of Seller to
consummate the Closing is subject to the  satisfaction of the following  further
conditions:

          (a)(i)Purchaser  shall have performed in all material  respects all of
     its obligations hereunder required to be performed by it on or prior to the
     Closing  Date,  (ii)  the   representations  and  warranties  of  Purchaser
     contained  in this  Agreement  shall be true and  correct as of the Closing
     Date with the same effect as though such representations and warranties had
     been made on and as of such time, other than representations and warranties
     that  speak as of a  specific  date or time  (which  need  only be true and
     correct as of such date or time);  provided that the condition set forth in
     this  clause  (ii)  shall be  deemed  satisfied  if the  facts,  events  or
     circumstances  underlying any inaccuracies in any such  representations and
     warranties as of the Closing Date (without giving effect to any materiality
     qualifications or materiality  exceptions contained therein),  individually
     or in the  aggregate,  could not  reasonably be expected to have a material
     adverse  effect on the business,  properties or financial  condition of the
     Purchaser and it subsidiaries  taken as a whole and (iii) Seller shall have
     received a certificate duly executed by an authorized  officer of Purchaser
     to the foregoing effect.

          (b)  Seller  shall  have  received  (i) a copy of the  certificate  or
     articles of incorporation, including all amendments, of Purchaser certified
     by the Secretary of State or other appropriate official of the jurisdiction
     of Purchaser's  incorporation  and (ii)  certificates from the Secretary of
     State or other  appropriate  official of the  jurisdiction  of  Purchaser's
     incorporation  to  the  effect  that  Purchaser  is  in  good  standing  or
     subsisting in such jurisdiction, listing all charter documents of Purchaser
     on file.

          (c) Seller shall have received a  certificate,  dated the Closing Date
     and executed by the Secretary or an Assistant  Secretary of  Purchaser,  in
     form and substance customary for transactions of this type.

          (d) The Company shall have executed and delivered to

                                       38

<PAGE>



         Guarantor the Transition Services Agreement.

          (e)  Purchaser  and the Company  shall have  executed and delivered to
     Guarantor the Master Agreement.

          (f) The  Company  or one of its  Affiliates  shall have  executed  and
     delivered  to  Guarantor  the  HMO  and  non-HMO  health  care  agreements,
     substantially  in  the  form  of  the  applicable  Exhibit  to  the  Master
     Agreement.

          (g)  Purchaser  shall  have  executed  and  delivered  to  Seller  the
     Guaranty, substantially in the form of the applicable Exhibit to the Master
     Agreement.

                                   ARTICLE XI

                            Survival; Indemnification

     11.1 Survival. The covenants, agreements, representations and warranties of
the parties hereto  contained in this  Agreement or in any  certificate or other
writing  delivered  pursuant hereto or in connection  herewith shall survive the
Closing until the later of (x) the 12 month  anniversary of the Closing Date and
(y) January 31, 1999 (the "Expiration Date") or (i) in the case of Sections 3.2,
3.5,  3.6(b) and (c), 3.13,  4.2, 4.5, 6.1, 6.3, 6.4, 6.5 and 6.6  indefinitely,
(ii) in case of Section 6.2, for the period set forth therein, (iii) in the case
of the  covenants,  agreements,  representations  and  warranties  contained  in
Article VIII, as set forth in Section 8.9(a),  (iv) in the case of covenants and
agreements  contained in Article IX, for the periods specified therein, or if no
period is specified,  then  indefinitely.  Notwithstanding  the  foregoing,  the
covenants  and  agreements  contained in this Article XI shall survive until the
Expiration Date,  except (i) as to any claims for, or any claims that may result
in,  Damages  for  which  indemnity  may  be  sought   hereunder  of  which  the
Indemnifying  Party  has  received  written  notice  (describing  the  claim  in
reasonable  detail) from the Indemnified  Party on or before the Expiration Date
in  which  case the  indemnity  obligation  for such  claim  shall  survive  the
Expiration  Date  or  (ii)  as to  any  representation,  warranty  or  agreement
expressly surviving the Expiration Date as set forth in this Section 11.1.

     11.2   Indemnification.   (a)  Seller  hereby  indemnifies  Purchaser  and,
effective at the Closing, without duplication, the Company and the Subsidiaries,
and their respective  directors,  officers,  shareholders,  employees and agents
(collectively,  the "Purchaser  Indemnified Parties") against and agrees to hold
them harmless from any and all damage,  loss,  liability and expense  (including
without   limitation   reasonable   expenses  of  investigation  and  reasonable
attorneys' fees and expenses in connection with any action,  suit or proceeding)
("Damages")  incurred or suffered by the Purchaser  Indemnified  Parties arising
out of (x) any  misrepresentation  or breach of warranty,  covenant or agreement
made or to be  performed  by  Seller  pursuant  to this  Agreement  (other  than
pursuant to Article VIII),  (y) the  litigation  identified in Item 3 of Section
3.10 of the Disclosure  Schedule or (z) the litigation  identified in Item 21 of
Section 3.10 of the Disclosure  Schedule;  provided that (i) except as set forth
in Section 11.1, the Purchaser  Indemnified  Parties shall not have any right to
be  indemnified  under,  nor shall they make any claim pursuant to, this Section
11.2(a) after the Expiration Date, (ii) the Purchaser  Indemnified Parties shall
not have any right to be indemnified under, nor shall they make any

                                       39

<PAGE>



claim pursuant to, this Section 11.2(a) for any single claim for Damages of less
than $20,000 ("De Minimis  Claims"),  (iii) the  Purchaser  Indemnified  Parties
shall not have any right to be indemnified  under, nor shall they make any claim
pursuant to, this Section 11.2(a) unless the aggregate  amount of all Damages to
the  Purchaser  Indemnified  Parties  (other  than De  Minimis  Claims)  exceeds
$5,000,000,  in which case the Purchaser Indemnified Parties will be entitled to
indemnification  only to the extent to which such Damages (other than De Minimis
Claims) exceed $5,000,000 and (iv) Seller's maximum liability under this Section
11.2(a) shall not exceed the Closing  Payment,  as adjusted  pursuant to Section
2.4,  together with all amounts paid to Seller pursuant to the Master Agreement.
Notwithstanding  anything to the contrary set forth in the immediately preceding
sentence,  (1) Seller's  indemnification  obligations  pursuant to clause (y) of
such  sentence  shall not be  subject  to,  and shall  not  count  towards,  the
$5,000,000  deductible  described  in  clause  (iii) of such  sentence,  and (2)
although  Seller's  indemnification  obligations  pursuant to clause (z) of such
sentence  shall  be  subject  to,  and  shall  count  towards,  such  $5,000,000
deductible,  Seller  shall  be  obligated  to  undertake  the  defense  of  such
litigation,  through  counsel  of its own  choosing  (reasonably  acceptable  to
Purchaser)  at its own expense,  in  accordance  with the  provisions of Section
11.3.

     (b)Purchaser  hereby  indemnifies  Seller  and  its  directors,   officers,
shareholders,  employees  and  agents  (collectively,  the  "Seller  Indemnified
Parties")  against  and agrees to hold them  harmless  from any and all  Damages
incurred  or  suffered  by the Seller  Indemnified  Parties  arising  out of any
misrepresentation  or breach of warranty,  covenant or  agreement  made or to be
performed  by  Purchaser  pursuant to this  Agreement  (other  than  pursuant to
Article VIII); provided that (i) except as set forth in Section 11.1, the Seller
Indemnified  Parties shall not have any right to be indemnified under, nor shall
they make any claim pursuant to, this Section 11.2(b) after the Expiration Date,
(ii) the Seller  Indemnified  Parties shall not have any right to be indemnified
under,  nor shall they make any claim pursuant to, this Section  11.2(b) for any
De Minimis Claims, (iii) the Seller Indemnified Parties shall not have any right
to be indemnified under, nor shall they make any claim pursuant to, this Section
11.2(b)  unless the  aggregate  amount of all Damages to the Seller  Indemnified
Parties (other than De Minimis  Claims)  exceeds  $5,000,000,  in which case the
Seller  Indemnified  Parties  will be  entitled to  indemnification  only to the
extent to which such Damages (other than De Minimis  Claims)  exceed  $5,000,000
and (iv)  Purchaser's  maximum  liability  under this Section  11.2(b) shall not
exceed the Closing Payment,  as adjusted  pursuant to Section 2.4, together with
all amounts paid to Seller pursuant to the Master Agreement.

     (c)The amount of any and all Damages for which  indemnification is provided
pursuant  to  this  Article  XI  shall  be net of any  amounts  received  by the
Indemnified  Party under  insurance  policies  with  respect to such Damages (it
being understood that any proceeds  obtainable from a captive  insurance company
of the  Indemnified  Party or any  amounts  which the  Indemnified  Party  self-
insures  shall not be so taken  into  account).  In the event that any claim for
indemnification asserted under this Article XI is, or may be, the subject of the
Company's or any party's  hereto  insurance  coverages,  the  Indemnified  Party
agrees to promptly  notify the  applicable  insurance  carrier of such claim and
tender defense thereof to such carrier. Each Indemnified Party shall pursue such
claims  diligently  and shall  reasonably  cooperate  with  each such  insurance
carrier, and there shall be no payment obligation with respect to such claim for
indemnification  under this  Article XI for a period of one year after  making a
claim for such insurance. If insurance coverage is denied (in whole or in part),
or if no  resolution of an insurance  claim shall have occurred  within such one
year period, upon payment of the

                                       40

<PAGE>



relevant indemnification  obligation, the Indemnifying Party shall be subrogated
to the rights of the Indemnified Party against such insurance carrier.

     11.3 Procedures;  Exclusivity.  (a) The party seeking indemnification under
Section 11.2 (the  "Indemnified  Party") agrees to give prompt written notice to
the party against whom indemnity is sought (the  "Indemnifying  Party")  setting
forth in reasonable  detail the assertion of any claim,  or the  commencement of
any suit,  action or  proceeding,  in respect of which  indemnity  may be sought
under such Section.  The Indemnifying  Party shall have 45 days after receipt of
such notice (or five days prior to such lesser  time period as is  permitted  by
applicable  law or  administrative  rule to contest  such  claim) to  undertake,
through  counsel of its own choosing and at its own expense,  the  settlement or
defense thereof, and the Indemnified Party shall cooperate with it in connection
therewith; provided, however, that the Indemnified Party may participate in such
settlement or defense through counsel chosen by such Indemnified Party, provided
that the fees and  expenses of such counsel  shall be borne by such  Indemnified
Party.  The  Indemnified  Party  shall  not pay or settle  any  claim  which the
Indemnifying Party is contesting in good faith.  Notwithstanding  the foregoing,
the  Indemnified  Party  shall have the right to pay or settle  any such  claim;
provided that the terms of such settlement are not materially prejudicial to the
Indemnifying Party, and that in such event the Indemnified Party shall be deemed
to have waived any right of indemnity therefor by the Indemnifying Party. If the
Indemnifying  Party does not notify the  Indemnified  Party within 45 days after
the receipt of the Indemnified  Party's notice of a claim of indemnity hereunder
(or five days prior to such lesser time period as is permitted by applicable law
or  administrative  rule to contest such claim) that it elects to undertake  the
defense thereof,  the Indemnified Party shall have the right to contest,  settle
or  compromise  the claim but shall  not  thereby  waive any right to  indemnity
therefor by the Indemnifying Party.

     (b) After the Closing,  Sections  8.9 and 11.2 will  provide the  exclusive
remedy by either party for any misrepresentation,  breach of warranty,  covenant
or  other  agreement  or  other  claim  arising  out of  this  Agreement  or the
transactions contemplated hereby.

     11.4  Investigation.  Any investigation made at any time by or on behalf of
any party hereto shall not diminish in any respect whatsoever such party's right
to rely on the  representations  and warranties made by any other party pursuant
to this Agreement.

                                   ARTICLE XII

                                   Termination

     12.1 Grounds for Termination.  This Agreement may be terminated at any time
prior to the Closing:

     (i) by mutual written agreement of Seller and Purchaser; or

     (ii) at any time after March 31, 1998, by Seller or Purchaser  upon written
notification  of the  non-terminating  party  by the  terminating  party  if the
Closing  shall not have  occurred  on or before  such date and such  failure  to
consummate is not caused by a breach of this Agreement by the terminating party.

                                       41

<PAGE>



     12.2  Effect  of  Termination.  If this  Agreement  is  validly  terminated
pursuant  to  Section  12.1,  such  termination  shall be without  liability  or
obligation of either party (or any  shareholder,  director,  officer,  employee,
agent,  consultant or  representative  of such party) to the other party to this
Agreement;  provided  that if such  termination  shall  result  from the willful
failure  of  either  party to  fulfill a  condition  to the  performance  of the
obligations  of the other  party or to perform a covenant of this  Agreement  or
from a willful  breach by either  party to this  Agreement,  such party shall be
fully liable for any and all Damages  incurred or suffered by the other party as
a result of such failure or breach.  The provisions of Sections 3.13,  4.5, 6.1,
13.3,  13.5,  13.6 and 13.7 shall  survive any  termination  hereof  pursuant to
Section 12.1.

                                  ARTICLE XIII

                                  Miscellaneous

     13.1 Notices.  All notices and other  communications  hereunder shall be in
writing  and  shall be  deemed  given  upon  receipt  if  delivered  personally,
telecopied  (which  telecopy is  confirmed) or mailed by registered or certified
mail (return receipt requested) or the next day if by overnight delivery service
to the parties at the following  addresses (or at such other address for a party
as shall be specified by like notice):

                        if to Purchaser, to:

                           Magellan Health Services, Inc.
                           3414 Peachtree Road, N.E.
                           Suite 1400
                           Atlanta, Georgia  30319
                           Attention:  General Counsel
                           Telecopy:  404-814-5717

                        with a copy to:

                           Magellan Health Services, Inc.
                           3414 Peachtree Road, N.E.
                           Suite 1400
                           Atlanta, Georgia  30319
                           Attention:  Chief Financial Officer
                           Telecopy:  404-814-5793


                                       42

<PAGE>



                        if to Seller, to:

                           Aetna Insurance Company of Connecticut
                           c/o Aetna U.S. Healthcare Inc.
                           151 Farmington Avenue
                           Hartford, Connecticut 06156
                           Attention: Chief Legal Officer
                           Telecopy: 860-273-8340

                        with a copy to:

                           Howard, Darby & Levin
                           1330 Avenue of the Americas
                           New York, New York 10019
                           Attention: John P. Gourary
                           Telecopy: 212-841-1010


     13.2  Amendments;  No Waivers.  (a) Any provision of this  Agreement may be
amended or waived if, and only if,  such  amendment  or waiver is in writing and
signed, in the case of an amendment,  by Purchaser and Seller, or in the case of
a waiver, by the party against whom the waiver is to be effective.

     (b) No failure or delay by either party in exercising  any right,  power or
privilege  hereunder  shall operate as a waiver  thereof nor shall any single or
partial  exercise  thereof preclude any other or further exercise thereof or the
exercise of any other right, power or privilege.  The rights and remedies herein
provided  shall be  cumulative  and not  exclusive  of any  rights  or  remedies
provided by law, except as otherwise provided in Section 11.3(b).

     13.3  Expenses.  All costs and expenses  incurred in  connection  with this
Agreement shall be paid by the party incurring such cost or expense.

     13.4  Successors and Assigns.  The  provisions of this  Agreement  shall be
binding upon and inure to the benefit of the parties hereto and their respective
successors  and  permitted  assigns;  provided  that  neither  party may assign,
delegate  or  otherwise  transfer  any of its rights or  obligations  under this
Agreement  without  the prior  written  consent of the other party  hereto.  Any
purported assignment not permitted by this Section 13.4 shall be void.

     13.5 Governing Law. This  Agreement  shall be construed in accordance  with
and  governed  by the  law of the  State  of New  York,  without  regard  to any
applicable principles of conflicts of law.

     13.6 Submission to Jurisdiction.  Each of the parties hereto hereby submits
to the  exclusive  jurisdiction  of the  United  States  District  Court for the
Southern  District  of New York and of any New York State  court  sitting in New
York City for  purposes of all legal  proceedings  arising out of or relating to
this Agreement or the

                                       43

<PAGE>



transactions contemplated hereby. Each of the parties hereto irrevocably waives,
to the  fullest  extent  permitted  by law,  any  objection  which it may now or
hereafter  have to the laying of the venue of any  proceeding  brought in such a
court and any claim  that any such  proceeding  brought in such a court has been
brought in an inconvenient forum.

     13.7 Waiver of Jury Trial.  Each of the parties  hereto hereby  irrevocably
waives any and all right to trial by jury in any legal proceeding arising out of
or relating to this Agreement or the transactions contemplated hereby.

     13.8 Specific Performance. The parties acknowledge that money damages alone
would not a sufficient  remedy for any breach of Section 6.1 of this  Agreement,
and  that the non-  breaching  party  shall be  entitled  to  equitable  relief,
including injunction and specific performance,  as a remedy for any such breach.
Such  remedies  shall be in addition to all other  legal or  equitable  remedies
available to such party.

     13.9  Counterparts;  Effectiveness.  This  Agreement  may be  signed in any
number of counterparts, each of which shall be an original, with the same effect
as if the  signatures  thereto  and hereto were upon the same  instrument.  This
Agreement  shall become  effective  when each party hereto shall have received a
counterpart hereof signed by the other party hereto.

     13.10 Entire  Agreement.  This Agreement  constitutes the entire  agreement
between the parties with respect to the subject matter hereof and supersedes all
prior  agreements,  understandings  and  negotiations,  both  written  and oral,
between the parties with  respect to the subject  matter of this  Agreement.  No
representation,  inducement, promise,  understanding,  condition or warranty not
set forth herein has been made or relied upon by either party hereto.

     13.11  Severability.  This  Agreement  shall be deemed  severable,  and the
invalidity or  unenforceability of any term or provision of this Agreement shall
not affect the validity or enforceability of this Agreement or of any other term
hereof, which shall remain in full force and effect.

     13.12  Captions;   Construction.  The  captions  herein  are  included  for
convenience  of  reference  only and shall be  ignored  in the  construction  or
interpretation hereof. The parties acknowledge that this Agreement was initially
prepared by Seller,  and that all parties have read and  negotiated the language
used  in this  Agreement.  The  parties  agree  that,  because  all the  parties
participated in negotiating and drafting this Agreement, no rule of construction
shall apply to this Agreement which construes  ambiguous language in favor of or
against any party by reason of that party's role in drafting this Agreement.

     13.13 Third Party  Beneficiaries.  None of the provisions of this Agreement
shall be for the benefit of, or enforceable  by, any employee or creditor of any
party hereto.

     13.14 No Set-off. The parties hereto expressly waive any rights to set-off
against any amount or payment due hereunder that any party may have under law or
equity.



                                       44

<PAGE>



     In witness  whereof,  the parties  hereto here caused this  Agreement to be
duly  executed by their  respective  authorized  officers as of the day and year
first above written.

                           Magellan Health Services, Inc.



                           By  /s/ Mac Crawford
                              -------------------------------
                              Name:  Mac Crawford
                              Title:  Chairman, President and 
                                      Chief Executive Officer


                           Aetna Insurance Company of Connecticut



                           By  /s/ James H. Dickerson, Jr.
                              --------------------------------
                              Name:  James H. Dickerson, Jr.
                              Title:  Vice President


                                       45







                            MASTER SERVICE AGREEMENT

                                 EXECUTION SHEET

This Master Agreement  ("Agreement") is made and entered into by and among Aetna
U.S.  Healthcare Inc., on behalf of itself and all of its applicable  affiliates
(collectively,   "Aetna  USHC")   (other  than  Human   Affairs   International,
Incorporated  ("HAI") and its  subsidiaries),  Magellan  Health  Services,  Inc.
("Magellan") and HAI. As used in this Agreement,  "Contractor" refers to HAI and
its subsidiaries. As used in this Agreement, "Aetna USHC" may refer from time to
time to Aetna U.S. Healthcare Inc. and its affiliated  companies,  collectively,
including HAI and its subsidiaries prior to the Effective Date and excluding HAI
and its  affiliates  after the Effective  Date.  Aetna USHC and  Contractor  are
hereinafter  sometimes referred to collectively as "Parties" and individually as
a "Party".

The  "Effective  Date" of this  Agreement  shall  be the  date the  transactions
contemplated by the Stock Purchase  Agreement dated as of August 5, 1997 between
Aetna Insurance  Company of Connecticut and Magellan Health Services,  Inc. (the
"Stock  Purchase   Agreement")  are  consummated,   subject  to  any  applicable
regulatory approvals.

Aetna USHC and  Contractor  mutually  desire to enter into an agreement  whereby
Aetna USHC and Contractor will provide access to and coordinate the provision of
behavioral  health care  services to Members with the  objective  of  delivering
cost-effective, quality behavioral health care services.

This  Agreement  constitutes  the complete and  exclusive  contract  between the
parties with respect to the subject  matter  hereof and  supersedes  any and all
prior  or  contemporaneous  oral or  written  communications  or  proposals  not
expressly included herein.

In  consideration  of the mutual  covenants and promises stated herein and other
good and valuable  consideration,  the parties hereby enter into this Agreement.
By executing this  Agreement,  the parties  acknowledge and agree that they have
reviewed  all of the terms and  conditions  of this  Agreement  and intend to be
legally bound by same.

Aetna U.S. Healthcare Inc.                Magellan Health Services, Inc.

By:  /s/ James H. Dickerson, Jr.          By:  /s/ Mac Crawford
     ------------------------------            ---------------------------------
      Name: James H. Dickerson, Jr.             Name: Mac Crawford
      Title: Vice President                     Title: Chairman, President & CEO
      Date: August 5, 1997                      Date: August 5, 1997

                                          Human Affairs International, 
                                          Incorporated

                                          By:  /s/ Jack D. Williams
                                               ---------------------------------
                                                Name: Jack D. Williams
                                                Title: President & CEO
                                                Date: August 5, 1997

                                       -1-


<PAGE>




This  Agreement  is entered  into by and between  Aetna USHC,  Magellan and HAI,
which parties have signed the Execution Sheet attached hereto.

1.   Behavioral Healthcare Services

     A.   Contractor  provides,  and manages the  administration and utilization
          of,   behavioral   healthcare   benefits  in  multiple   jurisdictions
          throughout the United States.  It is the intention of the Parties that
          all Members for which Aetna USHC  compensates  Contractor  pursuant to
          Section 6 hereof  will be serviced  by or through  Contractor.  In the
          event that any  services  are  provided  to Members by  Magellan  or a
          subsidiary of Magellan (other than Contractor),  such services will be
          deemed to be provided by Contractor  for purposes of Section 7 of this
          Agreement.  In  addition,  in the event that  Contractor  transfers to
          Magellan or a  subsidiary  of Magellan  (other  than  Contractor)  any
          Member who receives Managed  Behavioral  Health services,  such Member
          shall be  deemed  to be a Member  for  purposes  of  Section 7 of this
          Agreement  so  long  as  such  Member  continues  to  receive  Managed
          Behavioral  Health services from Magellan or one of its  subsidiaries.
          In the event that the product  category  known as "Managed  Behavioral
          Health"  is  amended,  changed,  subdivided  or  combined  with  other
          categories  of products or services  without the intent of  preventing
          the counting of increase in Managed Behavioral Health Members,  and as
          a result of such action it becomes impossible or impracticable for the
          Parties  to  determine  the  number  of  Members   receiving   Managed
          Behavioral  Health  services,  Contractor  shall  be  deemed  to  have
          provided  such  services  to not less than the number of such  Members
          immediately  prior to such  event for  purposes  of  Section 7 of this
          Agreement.

          Commencing  on  the  Effective  Date,  Contractor  shall  provide  the
          services  described  in  Exhibits  A  [GENERIC  HMO  AGREEMENT]  and B
          [NON-HMO AGREEMENT] hereto  (collectively,  the "Vendor Contracts") in
          the markets  described  in  Schedules A [HMO  MARKETS]  and B [NON-HMO
          MARKETS],  respectively,  subject to the  qualifications  set forth in
          paragraphs B and C below.

     B.   Aetna USHC and Contractor  shall implement the Behavioral  Health Care
          Service  Agreements  substantially  in the  form  attached  hereto  as
          Exhibit A (the "HMO Agreement") for each of the markets  identified in
          Schedule A on the Effective Date, subject to any applicable regulatory
          approvals and licensing requirements. It is understood and agreed that
          the form of HMO Agreement  attached  hereto may need to be modified in
          each market in a manner that is  reasonably  acceptable  to Aetna USHC
          and Contractor to meet applicable regulatory requirements. The parties
          to the HMO  Agreements  shall  be the  applicable  HMO  subsidiary  or
          affiliate of Aetna USHC on the one hand and  Contractor  or one of its
          affiliates on the other.

     C.   Aetna  USHC and  Contractor  (or  Magellan)  may,  from  time to time,
          mutually  agree  to  enter  into HMO  Agreements  in other  geographic
          markets not identified on Schedule A.

     D.   Aetna USHC and Contractor shall enter into the Behavioral  Health Care
          Service Agreement substantially in the form attached hereto as Exhibit
          B (the  "Non-HMO  Agreement")  on the Effective  Date,  subject to any
          applicable  regulatory  approvals.  The Non-HMO Agreement shall govern
          the provision of services identified therein for Aetna USHC throughout
          the United States.


                                       -2-


<PAGE>



     E.   In order to  provide  services  pursuant  to this  Agreement,  Network
          Providers  must  have  executed  individual   Participating   Provider
          Addendum attached to the applicable HMO Agreement.  Contractor and all
          Network Providers will act as independent contractors of Aetna USHC in
          providing  Covered Services to Members.  Except as otherwise set forth
          in this  Agreement,  Aetna USHC shall not be liable for any provider's
          failure to  properly  perform  health  care  services to any Member or
          fulfill his/her/its obligations under applicable provider contract.

     F.   Network  Providers who are HMO Network  Providers shall participate in
          all Plans covering Members serviced by Contractor  throughout the term
          of  this  Agreement,  provided  they  continue  to meet  Aetna  USHC's
          participation criteria.

     G.   On an  ongoing  basis  Contractor  shall  identify  potential  Network
          Providers  who have agreed to  participate  in the Aetna USHC provider
          network and shall encourage such providers not currently participating
          with Aetna USHC to apply for participation with Aetna USHC. Aetna USHC
          agrees to accept for  participation any such provider that meets Aetna
          USHC's applicable  participation  criteria and agrees to the terms and
          conditions  required  by  this  Agreement.  It is  understood  by  the
          parties, however, that an HMO Network Provider cannot provide services
          pursuant to this Agreement  unless such provider  participates  in all
          Plans.


2.   Products/Publicity

     Aetna USHC shall have the primary  responsibility  for the  advertising and
     marketing of all Plans. Neither Party may advertise,  issue a press release
     or make  any  public  written  statement  about  the  other  Party  or this
     Agreement  without such other Party's prior written  approval,  which shall
     not be  unreasonably  withheld,  provided that neither Party shall need the
     approval  of the other  Party for  disclosure  relating  to this  Agreement
     within the text of any periodic  report (other than a press  release) filed
     with the  Securities  and Exchange  Commission  ("SEC"),  that both Parties
     recognize  this Agreement may be filed with the SEC as an exhibit to an SEC
     report and that this Section  shall not  prohibit  either Party from making
     any disclosure permitted by Section 17.A, B or C.


3.   Duties of Contractor and Magellan

     A.   Magellan shall, and shall cause its  subsidiaries  (including HAI), to
          comply with their  respective  obligations  of this  Agreement and all
          Vendor  Contracts  (including  the  HMO  Agreements  and  the  Non-HMO
          Agreement) entered into pursuant to this Agreement.

     B.   Contractor shall satisfy all regulatory and licensure requirements for
          the implementation  and continued  effectiveness of the HMO Agreements
          in all of the markets in which  Contractor  is providing  services and
          for the  implementation  and  continued  effectiveness  of the Non-HMO
          Agreement.

     C.   Contractor  shall  comply  with  all  federal  and  state  laws in all
          material  respects  applicable  to it related to this  Agreement,  the
          Vendor   Contracts  and  the  services  to  be  provided   thereunder,
          including, but not limited to statutes and regulations

                                       -3-


<PAGE>



          related    to    fraud,    abuse,    discrimination,     disabilities,
          confidentiality,  self-referral,  false claims and prohibition of kick
          backs.

     D.   Contractor shall use  commercially  reasonable best efforts to require
          that Network  Providers  properly  provide the Covered Services of the
          applicable Plan.

     E.   Contractor  shall  use  commercially   reasonable  best  efforts,   in
          cooperation  with Aetna USHC,  to review,  inform and educate  Network
          Providers  of  all  applicable  Aetna  USHC  policies  and  procedures
          delivered to HAI.


4.   Duties of Aetna USHC

     A.   Aetna  USHC  shall  cause  its  affiliates   located  in  the  markets
          identified  on  Schedule A hereto to enter  into and  comply  with the
          terms  of the HMO  Agreements  and the  Non-HMO  Agreement  for  their
          particular  markets,  consistent  with the  provisions  of  Section  1
          hereof.

     B.   Prior to the Effective  Date,  Aetna USHC shall satisfy all regulatory
          and licensure requirements  applicable to it for the implementation of
          the HMO  Agreements  in all of the  markets  identified  on Schedule A
          hereto and for the implementation of the Non- HMO Agreement.

     C.   Aetna  USHC  shall  comply  with all  federal  and  state  laws in all
          material  respects  applicable to it related to this Agreement and the
          Vendor Contracts.

5.     Provider Contracts/Network Rental Arrangement

     A.   Aetna USHC understands and agrees that Contractor is in the midst of a
          recontracting effort to establish provider contracts directly with all
          of its  participating  providers,  and  that  Contractor  may not have
          completed this effort prior to the Effective  Date.  Aetna USHC agrees
          to use  reasonable  efforts  to  assist  Contractor  in such  efforts.
          Contractor  may  therefore  need to avail itself of a portion of Aetna
          USHC's  behavioral  health  provider  network  for a  period  of  time
          following the Effective Date. Aetna USHC hereby agrees to enter into a
          network rental  arrangement  (the "Network Rental  Arrangement")  with
          Contractor on terms and conditions that are reasonably satisfactory to
          both  Parties  (at no fee to  Contractor)  for a  period  of one  year
          following  the Effective  Date.  Unless  prohibited by the  applicable
          contract,  the Network Rental  Arrangement  shall  encompass all Aetna
          USHC  behavioral  health  participating  providers who or which do not
          have a direct  contractual  relationship  with Contractor.  Except for
          cause,  Aetna USHC shall not  terminate  any  contracts  with any such
          participating  providers  until  termination  of  the  Network  Rental
          Arrangement.  Aetna USHC shall not, however, be obligated to renew any
          such  contracts that expire.  To the extent  necessary to maintain the
          quality of Contractor's  provider  networks,  the Parties may mutually
          agree to extend the  six-month  Network  Rental  Arrangement  for such
          longer period of time as may be appropriate  under the  circumstances.
          Upon request,  Contractor shall provide Aetna USHC with a mailing list
          of all  behavioral  health  providers who have entered into any direct
          contracts  of the type  described  above with  Contractor,  which will
          enable Aetna USHC to terminate  existing provider contracts with Aetna
          USHC (where it deems appropriate).


                                       -4-


<PAGE>



     B.   Subject to terms of the immediately  preceding  paragraph,  Contractor
          shall  cooperate  with Aetna  USHC's  efforts in the event  Aetna USHC
          concludes it is desirable to terminate (or terminate its participation
          in) any behavioral health provider  contracts to which Aetna USHC is a
          party, including but not limited to the three-party provider contracts
          entered into prior to the  Effective  Date and any  contracts to which
          Aetna USHC and the provider are the sole  contracting  parties.  Aetna
          USHC will use  commercially  reasonable best efforts to cooperate with
          and  assist  Contractor  in  enforcing  contracts  with  Participating
          Providers  utilized  by  Contractor  pursuant  to the  Network  Rental
          Agreement.

     C.   Contractor  shall  indemnify  and hold  Aetna USHC  harmless  from all
          claims, obligations,  liabilities or other causes of action (including
          costs and  counsel  fees)  (collectively,  "Claims")  relating  to the
          Network Rental  Arrangement,  behavioral health care services provided
          by  Contractor  or  any   Participating   Provider  or   Participating
          Provider's commercial relationship with Contractor,  except that Aetna
          USHC  will  not be  indemnified  for,  and  shall  indemnify  and hold
          Contractor  harmless  from,  all Claims  which arise from Aetna USHC's
          negligence or willful  misconduct in performing its obligations  under
          the Rental Network Agreement.


6.   Rates; Payment  Arrangements

     A.   The rates for services  provided under the HMO Agreements  shall be as
          set forth in Schedule A.

     B.   The rates for services  provided under the Non-HMO  Agreement shall be
          as set forth in Schedule B hereto.

     C.   If (a) Aetna USHC  changes the  Covered  Services or the level of care
          criteria  applicable to a Plan,  or implements a new Plan,  which will
          (in Aetna USHC's or Contractor's reasonable actuarial estimate) result
          in $.05 or more change (either increase or decrease) in the total cost
          of Covered  Services  per  Member per month  under such Plan (or if no
          applicable  Plan exists,  under the most  similar  Plan) from the then
          total  cost of the  Covered  Services  then in  effect  (whether  such
          addition results from a change in Plan structure or benefits or from a
          change in law or regulation), (b) Aetna USHC changes the co-payment or
          co-insurance  requirements  of a Plan  which  will,  in  Aetna  USHC's
          reasonable  actuarial  estimate  which  is  reasonably  acceptable  to
          Contractor,  result in a material change in the utilization of Covered
          Services,  (c) Aetna  USHC  implements  any  material  changes  in the
          policies  and  procedures  applicable  to  Contractor  (including  any
          amendments to  credentialing  criteria,  reporting  obligations,  etc)
          which will result in Contractor  becoming  obligated to perform a task
          it was  otherwise  not  obligated to perform and the  incurrence  of a
          material  increase in expense by  Contractor's  expense (which expense
          increase   shall   be   demonstrable   to  Aetna   USHC's   reasonable
          satisfaction),  or (d) an  advance  in  technology  materially  lowers
          treatment  costs,  the  Parties  shall  negotiate  in good faith for a
          period of sixty (60) days to make  appropriate  increases or decreases
          (as  appropriate)  to the rates  described  in this  Section 6. If the
          Parties are unable to agree upon such  increases,  the  Parties  shall
          resolve any dispute arising from such negotiation  pursuant to Section
          13 of this  Agreement.  If the  Parties  agree upon such  increase  or
          decrease in rates (whether  through  negotiations  or through  dispute
          resolution),

                                       -5-


<PAGE>



          the changed rates shall be effective as of the first date on which the
          applicable  event  described  above  have  occurred  or occur.  If the
          changed rates  described above are not utilized during any period when
          such changed rates should have been utilized,  the then-existing rates
          prior to such change in rates shall be utilized to pay  Contractor and
          any adjustment thereto necessary to reflect the changed rates shall be
          applied retroactively.  During any period in which any change in rates
          is  being  determined   pursuant  to  this  Section  (whether  through
          negotiations or through dispute resolution), Aetna USHC shall continue
          to pay to Contractor in accordance with the then-existing  rates prior
          to such change,  and upon  determination  of such changed rates and if
          the  effective  date of  such  change  is  prior  to the  date of such
          determination, any adjustment to the then-existing rates prior to such
          change shall be retroactively applied to such effective date.

     D.   In the event that Aetna  USHC's  reversals  of  Contractor's  clinical
          denials  that  are  consistent  with  Company's  standards,  policies,
          procedures and criteria become in the aggregate materially  burdensome
          to  Contractor,  Contractor may bring the resulting  incremental  cost
          increase issue to the Operating  Committee  pursuant to Sections 13.B.
          and 13.C of this Agreement.

7.   Contingent Payments

     A.   Tranche 1 and Tranche 2 Payments.  In respect of each  Contract  Year,
          Contractor  shall  promptly pay to Aetna USHC the "Tranche 1 Payments"
          and  "Tranche 2  Payments"  described  below,  if any,  calculated  in
          accordance  with, and payable pursuant to the terms and conditions of,
          this Section 7.

     B.   Certain  Defined  Terms.  For purposes of this Section,  the following
          terms shall have the following meanings:

          (i)  "Aggregate  Member  Months"  shall mean for any Contract Year (a)
               with respect to Tranche 1 Members,  the total  Member  Months for
               all Tranche 1 Members  during such  Contract  Year,  and (b) with
               respect  to Tranche 2 Members,  the total  Member  Months for all
               Tranche 2 Members during such Contract Year.

          (ii)"Base  Members"  shall mean (a) with respect to Tranche 1 Members,
               the Tranche 1 Members as of the last day of the month immediately
               prior to the Effective  Date (but in no event later than December
               31, 1997), and (b) with respect to Tranche 2 Members, the Tranche
               2 Members  as of the last day of the month  immediately  prior to
               the  Effective  Date (but in no event  later  than  December  31,
               1997).

         (iii)"Contract Year" shall mean each of the twelve-month periods ending
               on the last day of the month in which the  Effective  Date  takes
               place in 1998,  1999, 2000, 2001, and 2002. If the Effective Date
               shall be in 1998, the reference to Contract Years in this Section
               shall be one year later than as stated herein.

          (iv)"Equivalent  Members" for any Contract Year shall be determined as
               follows,  with respect to a designated  category or categories of
               Members  serviced by  Contractor:  (a)  determine  the  Aggregate
               Member Months for

                                       -6-


<PAGE>



               which  Contractor  provides  services to  designated  category or
               categories of Members  during the  applicable  Contract Year, and
               (b) divide by 12.

          (v)  "FPR" shall mean the provision to Members of one or more products
               or services  described  in Schedule C hereto,  regardless  of the
               name of such product or service and regardless of the identity of
               the affiliate of Contractor offering or providing such product or
               service.

          (iii)"HMO" shall mean the provision to Members of one or more products
               or services  described  in Schedule D hereto,  regardless  of the
               name of such product or service and regardless of the identity of
               the affiliate of Contractor offering or providing such product or
               service.

          (iv)"Initial  Contract  Year" shall mean the  Contract  Year ending in
               1998.

          (v)  "Managed  Behavioral  Health" shall mean the provision to Members
               of one or more  products  or  services  described  in  Schedule E
               hereto,  regardless  of the name of such  product or service  and
               regardless  of  the  identity  of  the  affiliate  of  Contractor
               offering or providing such product or service.

          (vi)"Managed  Choice"  shall mean the  provision  to Members of one or
               more  products  or  services  described  in  Schedule  F  hereto,
               regardless of the name of such product or service and  regardless
               of the  identity  of the  affiliate  of  Contractor  offering  or
               providing such product or service.

          (vii)"Member" shall mean, for purposes of this Section 7 only, (a) any
               Member (as defined in Section 19.B of this  Agreement) or (b) any
               member who  receives  Managed  Behavioral  Health  services  from
               Contractor  (regardless  of whether  such member is a member of a
               Plan or a plan  offered by an employer  that is not a customer of
               Aetna USHC).

         (viii)"Member Months" shall mean, for each Member, the number of months
               for which Contractor  provides  services and is compensated under
               this Agreement or any Vendor Contract.

          (ix)"Tranche  1  Cumulative  Incremental  Members"  shall  mean,  with
               respect  to any  Contract  Year,  (i) the  number  of  Equivalent
               Members  serviced by  Contractor  during such  Contract  Year for
               Tranche 1 Members,  minus (ii) (A) for each  Contract  Year other
               than the Initial Contract Year, the number of Equivalent  Members
               serviced  by  Contractor   for  Tranche  1  Members   during  the
               immediately  preceding  Contract  Year  or (B)  for  the  Initial
               Contract Year, the Base Members.

          (x)  "Tranche 2 Cumulative  Members"  shall mean,  with respect to any
               Contract Year, (i) the Equivalent  Members serviced by Contractor
               during such Contract  Year for Tranche 2 Members,  minus (ii) the
               Base Members.

          (xi)"Tranche  1  Members"  shall  mean  Members  for  whom  Contractor
               provides services in any of the following  categories of products
               or services:  Managed Choice,  Managed Behavioral Health, and HMO
               (including  conversions of  individuals  who are serviced only in
               the category  referred to by Contractor as "Network" members into
               Managed Choice, Managed

                                       -7-


<PAGE>



               Behavioral  Health,  and HMO Members,  but not conversions of FPR
               Members  into such  categories.  In the event the names of any of
               the above service or product categories are changed or any of the
               above  services or products are amended,  changed or  subdivided,
               the Member for whom Contractor provides such changed,  amended or
               subdivided service or product shall be deemed Tranche 1 Members.

          (xii)"Tranche  2  Members"  shall  mean  Members  for whom  Contractor
               provides  products or services in the category of HMO  (including
               conversions  of  service  with  respect  to  individuals  who are
               serviced  only  by  Contractor  in the  category  referred  to by
               Contractor  as  "Network"  members,  but not  conversions  of FPR
               Members into HMO  Members).  In the event the names of any of the
               above  service or product  categories  are  changed or any of the
               above  services or products are amended,  changed or  subdivided,
               the Member for whom Contractor provides such changed,  amended or
               subdivided service or product shall be deemed Tranche 2 Members.

          "Tranche 1 Multiplier" shall have the meaning set forth in Schedule H.

          (xi) "Tranche  2  Multiplier"  shall  have the  meaning  set  forth in
               Schedule H.

          (xii)"Tranche 1 Payment"  shall mean the aggregate  amount  payable to
               Aetna USHC  pursuant to Section  7.C.  with  respect to Tranche 1
               Members.

          (xiii)"Tranche 2 Payment"  shall mean the aggregate  amount payable to
               AUSHC pursuant to Section 7.C. with respect to Tranche 2 Members.

     C.  Tranche 1 Payment.

          (i) Upon the  expiration of each Contract  Year, the Tranche 1 Payment
     shall vest with  respect to such  Contract  Year in an amount  equal to the
     product  of (i) the  Tranche  1  Cumulative  Incremental  Members  for such
     Contract Year and (ii) the Tranche 1 Multiplier for such Contract Year. For
     purposes of this Section 7.C., the vested amount of Tranche 1 Payment shall
     be zero with respect to any Contract Year in which the Tranche 1 Cumulative
     Incremental Members is a negative number.

          (ii)Within  30  days  following  the  end of  each  Contract  Year,  a
     statement  regarding  the  calculation  of the  Tranche 1 Payment  for such
     Contract  Year  (the  "Tranche  1  Statement"),  including  the  supporting
     information  regarding  (A) the  Aggregate  Member Months for such Contract
     Year,  (B) the Base Members and (C) the vested and unpaid amounts as of the
     applicable  time and by each  previous  Contract Year and for such Contract
     Year (before and after any  adjustment  for such  Contract Year pursuant to
     clause (iv) of this Section  7.C),  shall be delivered in  accordance  with
     Section 7.E. below.

          (iii)  Within 15 days after  receipt  by Aetna  USHC of the  Tranche 1
     Statement in accordance  with  paragraph (ii) of this section 7.C. for each
     Contract  Year,  Contractor  shall pay to Aetna  USHC the lesser of (i) the
     vested  portion of the  Tranche 1 Payment  for such  Contract  Year and the
     vested and unpaid amount  relating to prior Contract Years as of the end of
     the immediately preceding

                                       -8-


<PAGE>



     Contract  Year (after any  adjustment  for such  Contract  Year pursuant to
     clause (iv) of this Section 7.C) and (ii)  $25,000,000.  To the extent that
     the vested and unpaid portion of the Tranche 1 Payment exceeds $25,000,000,
     the  Tranche 1 Payment  remitted to Aetna USHC shall be deemed to have been
     paid first from any vested but unpaid amounts from previous  Contract Years
     in order from the earliest  Contract Year for which vested  amounts  remain
     unpaid to the most recent  Contract  Year at the time of such  calculation.
     Except with respect to the Contract Year ending 2002, any vested but unpaid
     portion of the Tranche 1 Payment  shall be  available  for payment to Aetna
     USHC in future Contract Years,  subject to the provisions of paragraph (iv)
     of this  Section  7.C.  All vested but unpaid  amount of Tranche 1 Payments
     shall expire  following  the payment of the Tranche 1 Payment in respect to
     the Contract  Year ending in 2002,  except as otherwise  provided in clause
     (v) below.  Notwithstanding  anything  herein to the contrary,  in no event
     shall the  aggregate  Tranche 1  Payments  to Aetna USHC  hereunder  exceed
     $125,000,000.

          (iv) In the event that the number of Tranche 1 Cumulative  Incremental
     Members  in  respect to any  Contract  Year is a  negative  number due to a
     decrease in the number of Tranche 1 Cumulative Incremental Members for such
     Contract Year (as compared to the  immediately  preceding  Contract  Year),
     Aetna USHC will forfeit the right to receive a certain  portion  (which may
     be none or all) of the vested and unpaid  amounts of the  Tranche 1 Payment
     relating to  preceding  Contract  Years in  accordance  with the  following
     sentences.  For purposes of this calculation,  the vested and unpaid amount
     of the Tranche 1 Payment for all applicable Contract Years (the "vested and
     unpaid  balance")  will be  converted  to a number of  Tranche 1 Members by
     dividing the vested and unpaid balance for each applicable Contract Year by
     the Tranche 1 Multiplier for such Contract Year and rounding to the nearest
     whole number and  aggregating  all such  Tranche 1 Members  (the  resulting
     number  being  referred to as the "vested and unpaid  Tranche 1  Members").
     Once the vested and unpaid  balance  has been  converted  to the vested and
     unpaid  Tranche 1 Members,  Aetna USHC will  forfeit  the vested and unpaid
     Tranche 1 Members  equal to the  negative  number of  Tranche 1  Cumulative
     Incremental  Members during the Contract Year for which the  calculation is
     being made.  The vested and unpaid  Tranche 1 Members  will be forfeited in
     the order of Contract  Year from the earliest  Contract  Year for which the
     vested and unpaid Tranche 1 Members were converted.  To the extent that one
     or more  vested  and  unpaid  Tranche 1  Members  are  remaining  after the
     forfeiture  resulting  from the negative  Tranche 1 Cumulative  Incremental
     Members  has been  completed  as  described  above,  such vested and unpaid
     Tranche 1 Members  will be converted  back to vested and unpaid  balance by
     multiplying the number of each portion of such remaining  vested and unpaid
     Tranche 1 Members for each  Contract  Year by the Tranche 1 Multiplier  for
     the  Contract  Year in which  such  vested  and  unpaid  Tranche  1 Members
     originally  vested.  The resulting amount of vested and unpaid balance will
     be available for payment of the Tranche 1 Payment in accordance with clause
     (iii) above.

          (v) In the event that the  aggregate  Tranche 1 Payments paid to Aetna
     USHC in respect of all Contract Years is less than $125,000,000, Aetna USHC
     shall be  eligible to earn such  deficit  amount from any vested but unpaid
     balance  remaining  after  payment  of  Tranche 1 Payment in respect of the
     Contract  Year ending  2002.  In order to become  eligible to receive  such
     deficit  amount,  Aetna USHC must elect (by  written  notice to  Contractor
     delivered no later than 45 days following the

                                       -9-


<PAGE>



     expiration  of the Contract Year ending in 2002) to extend the term of this
     Agreement  and all HMO  Agreements  and the  Non-HMO  Agreement  for a term
     expiring the contract  year ending in 2005 and on the terms and  conditions
     which are in effect during the Contract  Year  expiring  2002. In the event
     that Aetna USHC makes such an  election,  Aetna USHC shall be  eligible  to
     receive  vested and unpaid  amount of  Tranche 1 Payments  (subject  to the
     annual  maximum  payment  of  $25,000,000  and  the  aggregate  maximum  of
     $125,000,000)  in respect of the extended  contract years expiring in 2003,
     2004  and 2005 on the  same  terms  and  conditions  applicable  (including
     eligibility,  calculation  and receipt  mechanics) to Tranche 1 Payments in
     respect of Contract  Years;  provided that (a) in no event shall Aetna USHC
     be entitled to receive an amount in excess of the vested and unpaid balance
     at the end of Contract  Year 2002 (after any  adjustment  for such Contract
     Year  pursuant to clause (iv) of this  Section  7.C) and (b) all vested and
     unpaid  amount of Tranche 1 Payments  shall  expire upon the earlier of (i)
     the  payment  of  aggregate  Tranche 1  Payments  of  $125,000,000  or (ii)
     expiration of the Contract Year ending 2005.

          (vi)  Contractor  shall  use  "best  efforts"  (as  defined  below) to
     maintain and grow the Managed  Behavioral Health business.  For purposes of
     this clause,  Contractor's  "best efforts" shall include retaining at least
     the  substantially  same  level  of  resources  currently  devoted  to such
     business by Contractor and not  increasing  rates charged for such business
     by Contractor above the reasonable  market rate, as reviewed and determined
     annually by the Operating Committee in accordance with Section 13.

D.   Tranche 2 Payment.

          (i) Upon the  expiration of each Contract  Year, the Tranche 2 Payment
     shall be an amount  equal to the lesser of: (a) (I) the  product of (A) the
     Tranche 2 Cumulative  Members for such  Contract Year and (B) the Tranche 2
     Multiplier applicable to such number of Tranche 2 Cumulative Members, minus
     (II) the  aggregate  of the  Tranche 2 Payments  paid to Aetna USHC for all
     previous  Contract Years and (b) $35,000,000.  For purposes of this Section
     7.D.,  this amount shall be zero with respect to any Contract Year in which
     the Tranche 2 Cumulative Members is a negative number.

          (ii)Within  30  days  following  the  end of  each  Contract  Year,  a
     statement  regarding  the  calculation  of the  Tranche 2 Payment  for such
     Contract  Year  (the  "Tranche  2  Statement"),  including  the  supporting
     information  regarding the  Aggregate  Member Months for such Contract Year
     and the Base Members,  shall be delivered in  accordance  with Section 7.E.
     below.

          (iii)  Within 15 days after  receipt  by Aetna  USHC of the  Tranche 2
     Statement in accordance  with  paragraph (ii) of this section 7.D. for each
     Contract Year,  Contractor  shall pay to Aetna USHC in accordance with this
     Section 7 the amount of Tranche 2 Payment  payable for such  Contract  Year
     calculated  in  accordance  with  clause (i)  above.  All rights to receive
     Tranche 2 Payment  shall  expire  following  the  payment of the  Tranche 2
     Payment in respect to the Contract Year ending in 2002, except as otherwise
     provided  in clause  (iv)  below.  Notwithstanding  anything  herein to the
     contrary,  in no event  shall the  aggregate  Tranche  2  Payment  to AUSHC
     hereunder exceed $175,000,000.


                                      -10-


<PAGE>



          (iv) In the event that the aggregate  Tranche 2 Payments paid to Aetna
     USHC in respect of all Contract Years is less than $175,000,000, Aetna USHC
     shall be eligible to earn such deficit amount.  In order to become eligible
     to receive such deficit amount, Aetna USHC must elect (by written notice to
     Contractor  delivered no later than 45 days following the expiration of the
     Contract Year ending in 2002) to extend the term of this  Agreement and all
     HMO  Agreements  and  the  Non-MHO  Agreement  for a term  expiring  in the
     contract year ending in 2005 and on the terms and  conditions  which are in
     effect during the Contract Year expiring 2002. In the event that Aetna USHC
     makes  such an  election,  Aetna  USHC shall be  eligible  to  receive  the
     remaining  Tranche 2 Payments (subject to the annual maximum of $35,000,000
     and the  aggregate  maximum of  $175,000,000)  in  respect of the  extended
     contract  years  expiring  in 2003,  2004 and  2005 on the same  terms  and
     conditions  applicable  (including  eligibility,  calculation  and  receipt
     mechanics)  to Tranche 2 Payments  in respect of Contract  Years;  provided
     that all rights to receive Tranche 2 Payments shall expire upon the earlier
     of (i) payment of the aggregate  Tranche 2 Payments of $175,000,000 or (ii)
     expiration of the contract year ending 2005.

     E.   Annual  Statements.   Prior  to  the  Effective  Date,  the  Operating
          Committee  shall  determine  the  process by which the Tranche 1 and 2
          Statements (including the methodology by which Members will be counted
          for  purposes of Section 6 and 7, with the  purpose of making  minimal
          changes from the existing  methodology  for counting  Members) will be
          prepared  and  delivered  to each Party in  accordance  with  Sections
          7.C(ii) and 7.D(ii).  During the 30-day period following expiration of
          each Contract  Year, the Operating  Committee  shall endeavor to agree
          upon and submit to Aetna  USHC and  Contractor  a  proposed  Tranche 1
          Statement  and Tranche 2  Statement.  If the  Operating  Committee  is
          unable to agree upon any such Statement,  the Parties agree to resolve
          their  differences in accordance  with Section 13. If the  differences
          among the members of the Operating  Committee are resolved pursuant to
          Section 13, the Tranche 1 and Tranche 2 Statements  shall be delivered
          to Aetna USHC and Contractor pursuant to such resolution,  which shall
          be binding upon both Parties.  Notwithstanding any objection raised by
          either Party pursuant to this Section E., Contractor shall deliver the
          undisputed  amount  due  hereunder  to Aetna USHC in  accordance  with
          Section 7.C(iii) or 7.D(iii), as the case may be.

     F.   If any Tranche 1 or 2 Payment is due hereunder on a non-business  day,
          such  Payment  shall be due and payable on the  immediately  following
          business day.

     G.   From the  Effective  Date until the end of Contract  Year ending 2002,
          Aetna USHC agrees not to utilize any vendor (i) for  servicing  of any
          FPR Members serviced by Contractor (other than any FPR Members covered
          by Plans  acquired  by  Aetna  USHC or one of its  affiliates  through
          purchase of stock or assets, or merger, consolidation or joint venture
          with another  entity,  or any other similar  transaction)  or (ii) for
          servicing  of HMO and  Managed  Choice  Members  which  would have the
          result of Aetna USHC not achieving any portion of Tranche 1 Payment or
          Tranche 2 Payment for any  Contract  Year,  provided  further that the
          Parties  agree that this Section G shall not prohibit  Aetna USHC from
          having  any Member (as  defined  in  Section  19.B of this  Agreement)
          serviced by any vendor  pursuant  to any  provider  arrangements  with
          integrated delivery systems or any existing contractual commitments of
          Aetna USHC as of the Effective Date. This Section G shall not apply to
          any market in which Contractor is unable to serve Members (whether due

                                      -11-


<PAGE>



          to  contractual,  licensure,  legal or regulatory  restrictions or any
          other reason). During each Contract Year, when and if Aetna USHC knows
          that it has  achieved  sufficient  number of  Tranche  1  Members  and
          Tranche 2 Members to be entitled to full  payment of Tranche 1 Payment
          and  Tranche 2 Payment  for such  Contract  Year,  Aetna  USHC will so
          inform  Contractor.  During the same period,  Aetna USHC agrees to use
          commercially  reasonable best efforts to encourage its customers to be
          serviced by Contractor for Managed Behavioral Health services.

     H.   Prior to the  Effective  Date,  the Parties  shall use best efforts to
          negotiate an agreement  regarding  Members covered by Plans (including
          the valuation method for such covered Members)  acquired by Aetna USHC
          or one of its  affiliates  through  purchase  of stock or  assets,  or
          merger,  consolidation  or joint venture with another  entity,  or any
          other transaction  (except any such transaction that are immaterial to
          Aetna USHC) during the term of this Agreement,  which the Parties will
          refer to as  "Tranche 3 Members"  and  "Tranche  3  Payments".  Unless
          adverse to either  Party,  the Parties  shall  amend and restate  this
          Agreement to reflect the agreement described above.


8.     Corporate Governance

     A.   Magellan  shall take such action as shall be necessary so that, on the
          date  hereof or such later date as Aetna  USHC  shall  designate,  the
          Aetna USHC  Representative(s) (as defined below) shall be appointed to
          the Board of Directors of Magellan (the "Magellan  Board") at the next
          annual  meeting  of  Magellan's  stockholders  for a  term  in  office
          expiring three years thereafter.  If no vacancy exists at the Magellan
          Board   at  the   time   of   such   appointment,   the   Aetna   USHC
          Representative(s)  shall have a right to  participate  (with no voting
          power) at the Magellan  Board  meetings  following the Effective  Date
          until  the  Aetna  USHC  Representative(s)  is  duly  elected  by  the
          stockholders.  During  the  term  of  this  Agreement  (including  any
          extensions or renewals thereof),  Magellan shall (i) include the Aetna
          USHC  Representative(s)  in the slate of nominees  recommended  by the
          Magellan Board for election as directors at each applicable meeting of
          stockholders  of  Magellan,   commencing  with  the  next  meeting  of
          stockholders,  to the  Magellan  Board  (unless  Aetna  USHC no longer
          wishes to have the Aetna USHC Representative(s)  serve on such board),
          and (ii) unless  otherwise  instructed by the shareholder in the proxy
          card,  cause the shares for which  Magellan's  management  or Board of
          Directors  holds proxies or is otherwise  entitled to vote (other than
          shares  individually owned by Magellan's  management or members of the
          Magellan Board in their  individual  capacity) to be voted in favor of
          the election of the Aetna USHC Representative(s). For purposes of this
          Agreement,  the "Aetna USHC Representative(s)" means such person(s) as
          may from  time to time be  specified  by Aetna  USHC,  and  reasonably
          acceptable  to Magellan  (who will  initially be Daniel S. Messina) to
          serve as Aetna USHC's  representative(s)  on the Magellan  Board,  the
          number  of such  person(s)  to be equal  to the  aggregate  number  of
          person(s)  that are  appointed by or represent  any Blue Cross or Blue
          Shield plan or its affiliates on the Magellan Board.  If, at any time,
          an  Aetna  USHC  Representative  no  longer  continues  to  serve as a
          director  on the  Magellan  Board for any reason  (including,  without
          limitation, resignation, death or disability), at the request of Aetna
          USHC,  Magellan shall use its best efforts to ensure that such vacancy
          shall be filled by another Aetna USHC Representative.


                                      -12-


<PAGE>



     B.   Magellan agrees to pay the Aetna USHC  Representative(s)  the standard
          Magellan   Board   compensation   and   benefits(including,    without
          limitation, all travel, lodging and other related expenses).

     C.   Notwithstanding  the foregoing,  Magellan agrees that if, at any time,
          Blue Cross and Blue Shield of New Jersey,  Inc.,  Health Care  Service
          Corporation,  Pierce County Medical Bureau,  Inc.,  Independence  Blue
          Cross or any  other  Blue  Cross or Blue  Shield  plan or any of their
          respective   successors,    assigns,   transferees,    affiliates   or
          subsidiaries  shall possess any rights with respect to  representation
          or participation on the Magellan Board, any committee thereof to which
          the full powers of the Board (such as the  executive  committee or the
          administrative  committee,  if any) are  delegated  or on the Board of
          Directors of Contractor, Aetna USHC shall be promptly notified of such
          rights and (upon Aetna USHC's  request)  shall be granted  rights that
          are  no  less  favorable  with  respect  to  such   representation  or
          participation.  In addition,  Magellan  shall not take any action that
          will significantly  reduce the rights of Aetna USHC  Representative(s)
          as member(s) of the Magellan Board, any committee thereof or the Board
          of  Directors  of  Contractor  (in  comparison  to the  other  members
          thereof).

     D.   Upon date of  termination  of this  Agreement in  accordance  with the
          provisions  hereof,  unless  superseded  or  succeeded  by  a  similar
          agreement,  the Aetna USHC  Representative(s)  shall  resign  from the
          Magellan Board.

9.   Term and Termination

     A.   This Agreement shall be effective for a term of six (6) years from the
          Effective Date and for an additional two (2) years thereafter if Aetna
          USHC delivers the notice of extension  contemplated  by Section 7.C(v)
          or 7.D(iv)  hereof.  This  Agreement  may not be  terminated by either
          Party hereto except as expressly stated in this Section 9.

     B.   An "Event of  Default"  shall be deemed to have  occurred  under  this
          Agreement with respect to any Party in the event that:

         (i)  (A) such Party fails to perform any  material  obligation  of such
              Party under this  Agreement  or breaches  any  obligation  of such
              Party under this Agreement having a material adverse effect on the
              business of the other  Party,  including  the health and safety of
              Members,  taken as a whole,  or (B) such Party  causes an event of
              default  under or a breach of the Non-HMO  Agreement and the other
              Party  terminates  the Non-HMO  Agreement in  accordance  with the
              termination provisions thereof;

         (ii) the direct or indirect  acquisition  by an entity that is a direct
              competitor  of Aetna  USHC  (with  respect  to the  businesses  or
              practices  prohibited  by  Section  11  of  this  Agreement)  of a
              controlling interest in Magellan or Contractor;

         (iii)the suspension or disbarment of Contractor from  participation  in
              the Medicare or Medicaid  programs unless Magellan or a subsidiary
              of Magellan  that is  reasonably  acceptable to Aetna USHC and has
              the necessary  license continues to provide the same services that
              Contractor  can no  longer  provide  due  to  such  suspension  or
              disbarment;


                                      -13-


<PAGE>



          (iv) the filing by such Party of a petition  under  Chapter 7 under
               the federal Bankruptcy Code;

          (v)  the  filing  by  such  Party  of a plan of  reorganization  under
               Chapter 11 of the federal  Bankruptcy  code in which the required
               parties have formally approved a plan of reorganization  prior to
               the filing of the bankruptcy  petition and without  participation
               by the other Party;

          (vi) the termination by either Party of this Agreement without cause;

          (vii)the closing, termination or substantial elimination by Contractor
               of any line of its  behavioral  healthcare  business  required to
               service the Tranche 1 Members; or

          (viii) the  termination  without  cause by  Contractor  of (A) the HMO
               Agreements  covering  more  than  50%  of the  Members  as of the
               Effective Date or (B) the Non-HMO Agreement;

          provided,  that if any event described above is curable, no such event
          shall be deemed to constitute  an "Event of Default"  unless the Party
          causing the event  shall fail to remedy such event  within a period of
          ninety  (90) days  after the other  Party  shall  have given the Party
          causing the event a written  notice of default  and  further  provided
          further that if the nature of the event requires more than ninety days
          to cure and the Party  causing the event has  substantially  completed
          such cure  within the ninety day period and  continues  diligently  to
          pursue  such cure,  such cure period  shall be  extended  for up to an
          additional  90 day period to permit the  breaching  Party to  complete
          such cure.  In the Event of Default by Magellan or  Contractor,  Aetna
          USHC shall receive  credit for purposes of Section 7 of this Agreement
          any  Members or Member  Months  decreased  or lost as a result of such
          Event  of  Default  during  the  cure  period.  In  the  event  of any
          suspension,  withdrawal,  expiration, non-renewal or revocation of any
          state or local  license,  certificate,  approval or  authorization  of
          Contractor  or  the  indictment,   arrest,  charge  or  conviction  of
          Contractor or any of its senior officers (in connection with providing
          services  on behalf of  Contractor)  for any  felony  related to moral
          turpitude or professional  practice  related to this Agreement,  Aetna
          shall not have a right to  terminate  this  Agreement,  provided  that
          Aetna USHC shall  receive  credit  for  purposes  of Section 7 of this
          Agreement any Members or Member  Months  decreased or lost as a result
          of such event.

     C.   Upon the  occurrence  of an Event of Default  with  respect to a Party
          (Aetna USHC on the one hand and  Magellan or  Contractor  on the other
          hand),  the other Party shall be entitled to terminate  this Agreement
          upon with notice to the Party  causing the Event of Default.  If under
          either an HMO Agreement or the Non-HMO  Agreement a breach or an event
          of default  occurs and such  breach or event of default  applies  both
          Agreements, the non-breaching Party shall treat the breach or event of
          default  in the same  manner  under both  Agreements.  Notwithstanding
          anything to the contrary herein,  in the event of a termination of the
          Agreement by Aetna USHC pursuant to clauses (iv) through  (viii) above
          (but not  clauses  (i)  through  (iii)  above),  Aetna  USHC  shall be
          entitled to receive as  liquidated  damages  (and in lieu of any other
          remedy available at law or in equity,  except that Aetna USHC shall be
          entitled to any indemnification rights arising under Section 16 not as
          a result  of an Event of  Default  described  in clause  (iv)  through
          (viii)  above) the  remaining  amount which would have been payable to
          Aetna USHC under Section 7 of this Agreement (as if all of Aetna

                                      -14-


<PAGE>



          USHC's  obligations for Tranche 1 and Tranche 2 Payments  described in
          Section  7 from the date of  termination  through  the  Contract  Year
          ending 2002 had been satisfied (which shall be $300,000,000  minus the
          amount of Tranche 1 Payment and  Tranche 2 Payment  paid to Aetna USHC
          prior to such time minus the amount of Tranche 1 Payment and Tranche 2
          Payment  forfeited by Aetna USHC prior to such time)),  which shall be
          payable in accordance with the scheduled time of payment under Section
          7 (except that all such  amounts  shall be payable at the time of such
          termination if the Agreement is terminated  pursuant to clause (iv) or
          (v) above).  In the event of any such  termination  pursuant to clause
          (i) through (iii) above, the non- breaching Party shall be entitled to
          pursue any remedy available at law or in equity.

     D.   In the event any amount due under  Section 7 of this  Agreement  is in
          dispute,  the amount in dispute shall be paid to an escrow agent in an
          interest  bearing  account  pursuant to the terms and conditions of an
          escrow agreement to be entered into prior to the first  anniversary of
          the Effective Date. The escrowed amount plus accrued interest shall be
          payable  to the  appropriate  party by the  escrow  agent  upon  final
          adjudication of the dispute in accordance with the escrow agreement.

     E.   Magellan  shall  provide a guaranty of all  obligations  of Contractor
          under  this  Agreement  substantially  in the  form  of  the  Guaranty
          attached hereto as Exhibit C.

     F.   The Parties hereto expressly waive any rights to set-off any amount or
          payment due  hereunder or any Vendor  Contract that any Party may have
          under law or equity.


10.  Relationship of Parties

     None of the provisions of this  Agreement is intended to create,  nor shall
     be deemed or  construed  to create,  any  relationship  between the Parties
     hereto other than that of independent  entities contracting with each other
     hereunder  solely  for the  purpose of  effecting  the  provisions  of this
     Agreement.  Neither  of the  Parties  herein,  nor any of their  respective
     employees,  shall be  construed or  represent  themselves  to be the agent,
     employee,  servant, employer or representative of the other. This Agreement
     is not a joint venture between the Parties.

11.  Restrictive Covenants

     Contractor,  Magellan and its wholly-owned  subsidiaries  agree that during
     the  term of this  Agreement,  Contractor,  Magellan  and its  wholly-owned
     subsidiaries  shall not directly or indirectly  enter into or engage in the
     ownership,  management,  operation  or  control  of any  entity  which is a
     managed care entity  offering  full health care  benefits.  Notwithstanding
     anything to the contrary set forth in the preceding  sentence,  Contractor,
     Magellan and its  wholly-owned  subsidiaries may engage in and own, manage,
     operate or  control  any entity  engaged in current  activities,  which are
     integrated  delivery  system  services,  specialty/limited  health  service
     managed care, third party administration of  specialty/limited  health care
     services, disease management,  utilization management,  network management,
     care management or specialty/limited  health care  provision/administration
     for government agencies, HMO's or insurers.



                                      -15-


<PAGE>



12.  Cooperation of the Parties

     A.   Contractor and Aetna USHC will maintain an effective liaison and close
          cooperation  with each other to (a)  maximize  the mutual  benefits of
          their  relationship,  (b)  enhance the  quality of  behavioral  health
          services provided to Members and (c) foster working relationships with
          network behavioral health providers.

     B.   Each  Party  will  exchange   such   financial   information,   Member
          demographics,  encounter  and clinical  data  necessary  for the other
          Party  to  perform  its  obligations   under  this   Agreement.   Such
          information will be exchanged electronically to the extent feasible to
          both  Parties.  In  addition,  each Party  agrees to provide the other
          Party reasonable access to the data (which, in the case of Contractor,
          is  derived  from  those  systems  described  in  Schedule  G),  at no
          additional  cost charged to the other Party,  which are  necessary for
          the other Party to perform its obligations  hereunder,  subject to the
          confidentiality  obligations set forth in this Agreement.  The Parties
          acknowledge  and agree that (i) Aetna USHC  intends to modify,  at its
          cost, the means by which Aetna USHC provides data to Contractor  under
          this  Agreement  (including  those that are  derived  from the systems
          described in Schedule G), and (ii) Contractor shall make all necessary
          modifications  to  its  system(s),  at its  cost,  to  administer  its
          business  on a  stand-alone  basis  within the time  period  specified
          below. Prior to the Effective Date, the Parties will develop a plan to
          implement such changes.  Each Party shall use commercially  reasonable
          best  efforts to implement  such plan and to complete  its  respective
          obligations  under such plan within nine  months  after the  Effective
          Date and shall in no event  complete its  obligations  under such plan
          later  than  fifteen  months  after  the  Effective  Date.  As soon as
          practicable  after  the  date  hereof,  Aetna  USHC  will  provide  to
          Contractor  a list  indicating  the  priority  in  which  it  requests
          Contractor  to  implement  the changes  described in clause (i) above.
          Aetna USHC will  consult with  Contractor  in the process of preparing
          this  list.  Contractor  agrees to make good  faith  efforts to follow
          Aetna USHC's priority list.


13.  Agreement Administration/Dispute Resolution

     A.   The Parties  shall  designate  an  Operating  Committee to oversee the
          operation of this  Agreement  and the related  Vendor  Contracts.  The
          Operating  Committee shall consist of equal numbers of representatives
          from each Party. The Operating Committee shall meet no less frequently
          than   annually.   The   Operating   Committee   shall   act  or  make
          recommendations by unanimous consent.

     B.   If any dispute or controversy  shall arise under this Agreement or any
          of the Vendor Contracts,  the parties shall make good faith efforts to
          resolve the dispute or  controversy  through  negotiations  within the
          Operating Committee.

     C.   If the  Operating  Committee  is unable to  resolve  such  dispute  or
          controversy  within 60 days, the Operating  Committee shall request in
          writing the  President  of each Party to resolve the  dispute.  If the
          President  of each  Party  are  unable to  resolve  such  disputes  or
          controversy  within  30 days  after  the  matter  is  referred  to the
          Presidents,  either party, after such period (but in no event prior to
          the  expiration of such period),  shall be entitled to bring an action
          at law or equity in a court of  competent  jurisdiction,  except  that
          this  Section  shall not  prohibit  either  Party  from  bringing  any
          equitable  action at any time if a delay in bringing such action could
          result in irreparable harm to such Party.



                                      -16-


<PAGE>



14.  Use of Name

Contractor consents to the use of its name and other identifying and descriptive
material in provider directories and in other materials and marketing literature
of Aetna USHC in all formats,  including,  but not limited to, electronic media.
Contractor shall not use Aetna USHC's names, logos,  trademarks or service marks
in marketing materials or otherwise, except as provided in this Agreement or any
Vendor Agreement, without Aetna USHC's prior written consent.

15.  Interference with Contractual Relations

Contractor  shall not: (a) counsel or advise,  directly or  indirectly,  payors,
sponsors or other  entities who are currently  under contract with Aetna USHC or
any  Affiliate to cancel,  modify,  or not renew said  contracts;  (b) impede or
otherwise  interfere  with  negotiations  which  Aetna USHC or an  Affiliate  is
conducting for the provision of Plans; or (c) use or disclose to any third party
membership  lists acquired  during the term of this Agreement for the purpose of
directly  or  indirectly  soliciting  individuals  who  were or are  Members  or
otherwise to compete with Aetna USHC or any  Affiliate.  Nothing in this Section
is  intended  or shall  be  deemed  to  restrict  any  communication  between  a
Participating  Provider and a Member determined by the Participating Provider to
be necessary  or  appropriate  for the  diagnosis  and care of the Member.  This
Section  shall  survive the  termination  of this  Agreement.  In the event of a
breach or a threatened  breach of this Section by  Contractor,  Aetna USHC shall
have the right of specific  performance and injunctive relief in addition to any
and all other  remedies  and  rights at law or in  equity,  and such  rights and
remedies  shall be  cumulative.  Nothing in this Section is intended to prohibit
Contractor from conducting activities permitted under Section 11.

16.  Indemnification

Each Party agrees to indemnify and hold the other Party harmless against any and
all  claims,  losses,  liabilities,  expense  and  costs  (including  reasonable
attorneys'  fees)  (collectively,  "Damages")  arising  from any of the services
(which, in the case of Contractor,  shall include all of the services  delegated
from Aetna USHC to Contractor under this Agreement,  any of the Vendor Contracts
or any other agreement  mutually entered into, except Damages resulting in whole
or in part from  negligence  or willful  misconduct  on the part of Aetna  USHC)
performed by the indemnifying party under this Agreement or the breach of any of
the indemnifying  party's  obligations under this Agreement or any of the Vendor
Contracts.

17.  Non-Disclosure

The terms and  conditions  herein  shall be treated by the  Parties as  strictly
confidential.  Accordingly,  the Parties  agree not to  directly  or  indirectly
disclose this  Agreement or the terms and conditions  herein,  including but not
limited to all schedules and financial  terms,  to any third party.  The parties
agree  that the  breach or  prospective  breach  of this  provision  will  cause
irreparable  harm for which  money  damages  may not be  adequate.  The  parties
therefore agree that in addition to any other remedies,  the non-breaching party
shall be entitled to injunctive or other equitable relief to restrain the breach
hereof. This provision shall not apply to:

     A.   disclosures  required by law (including  any  disclosure  permitted in
          Section 2 without prior approval), provided such disclosure is limited
          to the extent required by law; or

                                      -17-


<PAGE>




     B.   disclosures to the accountants  and attorneys  retained by each Party;
          or

     C.   information  that is within  the  public  domain  and which each party
          learns of through the public domain at the time of disclosure,  or was
          previously  known to the disclosing  party, or is or becomes  publicly
          available  without  breach of this  Agreement,  or is received  from a
          third  party  holding  such  information  legally and having the legal
          right to  disseminate  it  without  breach of this  Agreement  by such
          disclosing  party,  or is disclosed by the  disclosing  party with the
          written approval of the other party.

     This paragraph 17 shall survive termination of this Agreement.

18.  Miscellaneous

     A.   Waiver.  The waiver by either  Party of a breach or  violation  of any
          provision of this Agreement shall not operate as or be construed to be
          a waiver  of any  subsequent  breach  thereof.  To be  effective,  all
          waivers must be in writing and signed by the party to be charged.

     B.   Governing Law. This Agreement shall be governed in all respects by the
          laws of the State of Delaware.

     D.   Severability.  Any determination  that any provision of this Agreement
          or any application thereof is invalid, illegal or unenforceable in any
          respect in any instance  shall not affect the  validity,  legality and
          enforceability  of  such  provision  in  any  other  instance,  or the
          validity,  legality,  or enforceability of any other provision of this
          Agreement.

     E.   Inconsistencies.  If any term or provision of this Agreement  relating
          to Covered  Services is  inconsistent  with a term or  provision  of a
          non-insured  Plan, then as to individuals  entitled to receive Covered
          Services  through  said Plan,  the term or provision of the Plan shall
          prevail.

     F.   Assignment. This Agreement may be assigned,  subcontracted,  delegated
          or transferred by either Party to one of its wholly owned subsidiaries
          or an  affiliate  of such  Party  which is wholly  owned by the parent
          company  that wholly owns such Party,  unless it results in a material
          adverse effect on the other Party's interest under this Agreement.

     G.   Affirmative Action.  Aetna USHC is an Equal Opportunity Employer which
          maintains an Affirmative  Action Program.  To the extent applicable to
          Contractor,  Contractor  shall comply with the  following,  as amended
          from time to time:  Executive  Order  11246,  the Vietnam Era Veterans
          Readjustment Act of 1974, the Drug Free Workplace Act of 1988, Section
          503 of  the  Rehabilitation  Act  of  1973,  any  similar  legislation
          regarding  transactions relating to any government contract of Company
          or an Affiliate,  and any rules and regulations promulgated under such
          laws.

     H.   Headings.  The headings  contained in this  Agreement are included for
          purposes  of  convenience  only,  and shall not  affect in any way the
          meaning or  interpretation  of any of the terms or  provisions of this
          Agreement.

     I.   Notices.  Any notice  required  to be given  pursuant to the terms and
          provisions hereof shall be effective only if given in writing and sent
          by overnight delivery service with

                                      -18-


<PAGE>



          proof of  receipt,  or by  certified  mail return  receipt  requested.
          Notices shall be sent to the following addresses (which may be changed
          by giving notice in conformity with this section):

          To Contractor or Magellan at:

          Magellan Health Services
          3414 Peachtree Road, N.E.
          Suite 1400
          Atlanta, GA  30319
          Attention:  General Counsel and
                      Chief Financial Officer

          and to Aetna USHC at:

          980 Jolly Road
          Blue Bell, PA 19422
          Attention:  Chief Financial Officer and
                      Chief Legal Officer


     J.   Non-Exclusivity.  Except as  otherwise  set forth in Section 7 of this
          Agreement,  this Agreement is not exclusive,  and nothing herein shall
          preclude either party from contracting with any other person or entity
          for any purpose not inconsistent with this Agreement.

     K.   Entire Agreement. This Agreement (including any attached schedules)
       constitutes  the  complete  and sole  contract  between  the  parties and
       supersedes  any  and  all  prior  or  contemporaneous   oral  or  written
       communications or proposals not expressly included herein.

19.  Definitions

     When used in this Agreement, all capitalized terms shall have the following
meanings:

     A.   Covered Services.  Those Medically  Necessary  Services (as defined in
          HMO  Agreement)  which a Member is entitled to receive under the terms
          and conditions of a Plan.

     B.   Member. An individual covered by or enrolled in a Plan.

     C.   Network Provider. A physician,  hospital, or other individual,  entity
          or  facility  involved in the  delivery  of health  care or  ancillary
          services  (whether or not affiliated with Contractor) that meets Aetna
          USHC's   participation   criteria  and  agrees  to  accept  the  rates
          contemplated by this Agreement for Covered  Services.  A list of these
          providers as of the Effective  Date shall be provided by Contractor to
          Aetna USHC.

     D.   Participating Provider. Any physician, hospital, residential treatment
          facility,  skilled  nursing  facility,  or other  individual or entity
          involved in the delivery of health care or  ancillary  services who or
          which has entered into and continues to have a current valid  contract
          with Aetna USHC to provide Covered Services to Members, and has been

                                      -19-


<PAGE>



          credentialed  by Contractor  consistent  with Aetna USHC's  applicable
          credentialing policies.

     E.  Plan.  Any health  benefit  product or plan  issued,  administered,  or
         serviced  by Aetna USHC or one of its  Affiliates,  including,  but not
         limited to, HMO, preferred provider organization,  indemnity, Medicaid,
         Medicare and Worker's Compensation.

     F.  Proprietary  Information.  The information developed by or belonging to
         Aetna USHC or any third party payor including, but not limited to, this
         Agreement,  mailing lists,  patient lists,  employer lists,  Aetna USHC
         rates  and  procedures,  product  related  information  and  structure,
         utilization  review  procedures,  formats  and  structure  and  related
         information   and  documents   concerning   Aetna  USHC's  systems  and
         operations of its Plans.


                                      -20-





                             
                      AMENDMENT TO STOCK PURCHASE AGREEMENT


     This amendment (the "Amendment") to the Stock Purchase Agreement,  dated as
of  August  5,  1997  (the  "Agreement")  between  AETNA  INSURANCE  COMPANY  OF
CONNECTICUT ("Seller") and MAGELLAN HEALTH SERVICES,  INC. ("Purchaser") is made
and entered into as of the 4th day of December, 1997.

     WHEREAS,  Seller and Purchaser  desire to amend the Agreement in the manner
set forth in this Amendment;

     NOW,  THEREFORE,  in  consideration  of the premises and for other good and
valuable   consideration,   the  receipt  and   adequacy  of  which  are  hereby
acknowledged, the parties hereby agree as follows:

     1. Amendment to Section 1.1.

     The  definition  of  "Closing  Stockholder's  Equity" in Section 1.1 of the
Agreement is amended to read, in its entirety, as follows:

          "Closing  Stockholder's  Equity" means the consolidated  stockholder's
     equity of the Company and its consolidated  Subsidiaries as of the close of
     business on the day immediately  preceding the Closing Date as set forth on
     the Closing Balance Sheet less $4,000,000.

     2. Miscellaneous.

     a.  All  references  in the  Agreement  to the  "Agreement"  and any  other
references of similar import shall  henceforth  mean the Agreement as amended by
this  Amendment.  All  capitalized  terms used but not otherwise  defined herein
shall have the  meaning  ascribed  to them in the  Agreement  as amended by this
Amendment.

     b. Except to the extent specifically amended by this Amendment,  all of the
terms and  conditions  contained  in the  Agreement  shall be and remain in full
force and effect.

     c. This Amendment  shall be binding upon and inure to the benefit of Seller
and Purchaser and their respective successors and assigns.

     d. In the event of any inconsistency or conflict between this Amendment and
the Agreement,  the terms,  provisions  and  conditions of this Amendment  shall
govern and control.


                                       -1-




<PAGE>



                  IN WITNESS  WHEREOF,  the parties  hereto have  executed  this
Amendment as of the date first written above.

                              MAGELLAN HEALTH SERVICES, INC.


                              By:  /s/ Craig L. McKnight
                                   -----------------------
                                   Name: Craig L. McKnight
                                   Title: Executive Vice President & CFO

                              AETNA INSURANCE COMPANY OF
                                 CONNECTICUT


                              By:  /s/  Stephen R. Fisher
                                   -----------------------
                                   Name: Stephen R. Fisher
                                   Title: Assistant Secretary


                                       -2-






                  FIRST AMENDMENT TO MASTER SERVICES AGREEMENT


This First Amendment (this  "Amendment") to the Master Service Agreement is made
and entered  into as of the 4th day of December,  1997,  by and among Aetna U.S.
Healthcare  Inc.,  on  behalf  of itself  and all of its  applicable  affiliates
("Aetna USHC")(other than Human Affairs International,  Incorporated ("HAI") and
its subsidiaries), Magellan Health Services, Inc. ("Magellan") and HAI.

                                   WITNESSETH:

WHEREAS,  Aetna  USHC,  Magellan  and HAI have  entered  into a  Master  Service
Agreement dated as of August 5, 1997 (the "Agreement"); and

WHEREAS,  Aetna  USHC,  Magellan  and HAI desire to amend the  Agreement  in the
manner set forth in this Amendment;

NOW, THEREFORE, in consideration of the premises and for other good and valuable
consideration,  the receipt and adequacy of which are hereby  acknowledged,  the
parties hereby agree as follows:

1.  Amendment to Subsection 7.B(ii) of the Agreement.

Subsection  7.B(ii) of the Agreement is hereby amended to read, in its entirety,
as follows:

(ii) "Base  Members"  shall mean (a) with  respect  to  Tranche 1  Members,  the
     Tranche 1 Members as of September  30, 1997 and (b) with respect to Tranche
     2  Members,  the  Tranche 2 Members as of  September  30,  1997;  provided,
     however,  that with respect to Members whose Plan requires the selection of
     primary care physicians but who have not done so ("1111 Members"), all 1111
     Members in a Plan being  serviced by  Contractor  as of September 30, 1997,
     except for 1111 Members in a Plan written on the U.S.  Healthcare  platform
     in  Georgia,  will be included as Base  Members  with  respect to Tranche 1
     Members or Tranche 2 Members,  as  applicable,  and all other 1111  Members
     will not be  included  as Base  Members  with  respect to either  Tranche 1
     Members  or  Tranche 2  Members.

                                        1



<PAGE>



2.   Amendment to Subsections 7.B(xi) and (xii) of the Agreement.

Subsections  7.B(xi) and (xii) of the Agreement  are hereby  amended to read, in
their entirety, as follows:

(xi) Tranche 1 Members" shall mean Members for whom Contractor provides services
in any of the  following  categories  of products or services:  Managed  Choice,
Managed Behavioral Health, and HMO (including conversions of individuals who are
serviced only in the category  referred to by  Contractor  as "Network"  Members
into Managed Choice,  Managed Behavioral Health, and HMO Members,  and including
conversions  of FPR, CHA or CHI Members (who were not FPR, CHA or CHI Members as
of the Effective Date) into Managed  Choice,  Managed  Behavioral  Health or HMO
Members,  but not conversions of individuals who were FPR, CHA or CHI Members as
of the Effective Date into such categories).  Notwithstanding the foregoing, the
first two hundred fifty thousand (250,000)  individuals who were FPR, CHA or CHI
Members  as of the  Effective  Date  who  convert  to  Managed  Choice,  Managed
Behavioral  Health or HMO  Members  shall be counted  as  Tranche 1 Members  but
discounted at the rate of 75% for the first  Contract Year of this Agreement and
50%  thereafter  (so that each such  Member  is  deemed as only  one-quarter  or
one-half  Tranche 1 Member,  respectively).  After the first two  hundred  fifty
thousand  (250,000)  such  conversions  from FPR,  CHA or CHI Members to Managed
Choice,  Managed Behavioral Health or HMO Members,  no further  conversions from
individuals who were FPR, CHA or CHI Members as of the Effective Date to Managed
Choice,  Managed Behavioral Health or HMO Members shall be included or deemed as
Tranche 1 Members. In the event the names of any of the above service or product
categories  included  in  Tranche  1  Members  are  changed  or any of the above
services or  products  included  in Tranche 1 Members  are  amended,  changed or
subdivided,  the Member for whom  Contractor  provides such changed,  amended or
subdivided  service or product  shall  continue to be a Tranche 1 Member if such
Member would have otherwise  continued to be a Tranche 1 Member  notwithstanding
the change, amendment or subdivision of such product or service.

(xii)  "Tranche  2 Members"  shall mean  Members  for whom  Contractor  provides
products  or  services  in  the  category  of  HMO  (including   conversions  of
individuals  who are serviced only in the category  referred to by Contractor as
"Network" Members and including  conversions of FPR, CHA, CHI, Managed Choice or
Managed Behavioral Health Members (who were not FPR, CHA, CHI, Managed Choice or
Managed  Behavioral  Health Members as of the Effective  Date) into HMO Members,
but not  conversions  of  individuals  who were FPR ,  Managed  Choice,  Managed
Behavioral  Health,  CHA or  CHI  Members  as of the  Effective  Date  into  HMO
Members).  Notwithstanding  the  foregoing,  the first one million  five hundred
thousand  (1,500,000)  individuals  who were FPR,  CHA or CHI  Members as of the
Effective Date and who

                                        2



<PAGE>



convert to HMO Members  shall be counted as Tranche 2 Members but  discounted at
the rate of 50% (so that each such Member is deemed as only  one-half  Tranche 2
Member).  Upon the first one million  five  hundred  thousand  (1,500,000)  such
conversions from FPR, CHA or CHI Members to HMO Members,  no further conversions
from  individuals  who were FPR, CHA or CHI Members as of the Effective  Date to
HMO Members  shall be included or deemed as Tranche 2 Members.  In the event the
names of any of the above  service or product  categories  included in Tranche 2
Members are changed or any of the above services or products included in Tranche
2 Members are amended,  changed or subdivided,  the Members for whom  Contractor
provides such changed, amended or subdivided services or products shall continue
to be a Tranche 2 Member if such Member would have  otherwise  continued to be a
Tranche 2 Member  notwithstanding  the change,  amendment or subdivision of such
product or service

3. Amendment to Subsection 7.B of the Agreement.
Subsection 7.B is hereby amended by adding new  Subsections  7.B(xiii) and (xiv)
as follows:

(xiii) "CHA" shall mean the  provision to Members of one or more of the products
     or services  described  in Schedule F-1 hereto,  regardless  of the name of
     such product or service and  regardless of the identity of the affiliate of
     Contractor offering or providing such product or service.

(xiv)"CHI" shall mean the  provision  to Members of one or more of the  products
     or services  described  in Schedule F-1 hereto,  regardless  of the name of
     such product or service and  regardless of the identity of the affiliate of
     Contractor offering or providing such product or service.

4. Amendment to Subsection 7.E of the Agreement.

The second  sentence of  Subsection  7.E of the  Agreement is hereby  amended to
read, in its entirety, as follows:

During the  60-day  period  following  expiration  of each  Contract  Year,  the
Operating  Committee  shall  endeavor to agree upon and submit to Aetna USHC and
Contractor a proposed Tranche 1 Statement and Tranche 2 Statement.

5. Amendment to Subsection 7.G of the Agreement.

Subsection 7.G of the Agreement is hereby  amended to read, in its entirety,  as
follows:


                                        3



<PAGE>



     G.   Except pursuant to Section 7.H of this  Agreement,  from the Effective
          Date until the end of Contract Year ending 2002, Aetna USHC agrees not
          to utilize any vendor for  servicing  of any FPR  Members  serviced by
          Contractor  (other than any FPR Members  covered by Plans  acquired by
          Aetna  USHC or one of its  affiliates  through  purchase  of stocks or
          assets, or merger, consolidation or joint venture with another entity,
          or any other similar  transaction).  Except pursuant to Section 7.H of
          this Agreement,  from the Effective Date until the end of the Contract
          Year  ending  2002,  Aetna USHC  agrees not to utilize  any  vendorfor
          servicing  HMO Members or Managed  Choice  Members  until such time as
          Contractor  (including any of its  Affiliates) has been paid the first
          two and  one-half  million New Members  (as defined  below)  under the
          applicable  Vendor  Contracts.   Notwithstanding  the  foregoing,  the
          Parties  agree that this Section G shall not prohibit  Aetna USHC from
          having  any Member (as  defined  in  Section  19.B of this  Agreement)
          serviced by any vendor  pursuant  to any  provider  arrangements  with
          integrated delivery systems or any existing contractual  commitment of
          Aetna USHC as of the Effective Date. "New Member" shall mean as of any
          relevant  date of  determination,  the sum of (i)  the  number  of HMO
          Members  as of such  date of  determination  minus  the  number of HMO
          Members as of  September  30,  1997 (as  determined  under  Subsection
          7B(ii), as amended),  whether positive or negative and (ii) the number
          of Managed Choice Members as of such date of  determination  minus the
          number  of  Managed  Choice  Members  as of  September  30,  1997  (as
          determined under Subsection 7.B(ii), as amended),  whether positive or
          negative.  Notwithstanding  the  foregoing,  (a) each FPR,  CHA or CHI
          Member as of  September  30,  1997 who  converts  to a HMO or  Managed
          Choice  Member  shall be  discounted  at the rate of 55% (so that each
          such  Member  is deemed as only 45% of one New  Member),  (b)  Managed
          Behavioral  Health  Members as of September  30, 1997 who convert into
          HMO or Managed  Choice  Members  shall not be counted as "New Members"
          and (c) each FPR, Managed  Behavioral  Health,  CHA or CHI Member (who
          was not a FPR,  Managed  Behavioral  Health,  CHA or CHI  Member as of
          September  30,  1997) who converts to a HMO or Managed  Choice  Member
          shall be counted as a New  Member.  This  Section G shall not apply to
          any market in which Contractor is unable to serve Members (whether due
          to  contractual,  licensure,  legal or regulatory  restrictions or any
          other  reason).  Promptly  following  the  expiration of each Contract
          Year,  Aetna USHC will provide  Contractor with a statement  detailing
          the number of New  Members  as of the end of such  Contract  Year.  In
          addition,  when and if Aetna USHC knows that it has achieved 2,500,000
          New  Members  (as  described  herein),   Aetna  USHC  will  so  inform
          Contractor.  During the exclusivity period described above, Aetna USHC
          agrees to use  commercially  reasonable  best efforts to encourage its
          customers to be served by  Contractor  for Managed  Behavioral  Health
          services.



                                        4



<PAGE>



6. Amendment to Subsection 7.H of the Agreement.

Subsection 7.H of the Agreement is hereby  amended to read, in its entirety,  as
follows:

H.   Acquisitions/Right of First Offer

     (i)  For purposes of this  Subsection H, the following terms shall have the
          following meanings:

          a.   Acquired Healthcare Entity means the acquisition by Aetna USHC of
               all or any  portion of an HMO,  health  insurer or other  managed
               care entity offering health care benefits.

          b.   Behavioral  Healthcare Business means an entity which is engaged,
               in whole or in part, in the provision or management of Behavioral
               Healthcare Services, including the ownership, leasing, operation,
               administration  or management  of an entity or facility  which is
               engaged,  in whole or in part,  in the provision or management of
               Behavioral Healthcare Services.

          c.   Behavioral  Healthcare  Services  means the  provision  of mental
               health  and  substance  abuse  utilization  management,   network
               management,  care management or EAP services for and on behalf of
               an entity or healthcare plan (including self-insured plans) for a
               fee (or other direct or indirect financial benefit).

     (ii) Within  twenty (20) days  following the closing of an  acquisition  by
          Aetna USHC or any of its Affiliates of an Acquired  Healthcare  Entity
          (whether  through  an  acquisition  of  assets  or  stock,  merger  or
          consolidation,  joint venture or other similar  transaction)  (or such
          later  date  as  such  information  may  be  reasonably   obtained  or
          developed), Aetna USHC shall provide Contractor with written notice of
          such  acquisition,  which notice shall state  whether the provision of
          Behavioral   Healthcare   Services  for  the  Plans  of  the  Acquired
          Healthcare  Entity are  performed,  as of the  acquisition  date, by a
          vendor that is not an  affiliate  of the  Acquired  Healthcare  Entity
          (including  by a provider) (a "Third Party  Vendor") or by a component
          of the Acquired  Healthcare Entity itself or a combination thereof (in
          the latter case, the notice shall set forth in reasonable detail which
          categories  of  members  covered by Plans of the  Acquired  Healthcare
          Entity are  serviced  by a Third  Party  Vendor and which  members are
          serviced internally and the number of such members).  If the number of
          members covered by the

                                        5



<PAGE>



          Plans of the  Acquired  Healthcare  Entity are less than 750,000 as of
          the  acquisition  date or if more than (50%) of the members (as of the
          acquisition  date)  covered  by the Plans of the  Acquired  Healthcare
          Entity which receive provision of Behavioral Healthcare Services do so
          through a Third Party  Vendor,  the  provisions  of Subsection X below
          shall apply; in all other cases,  the provisions of Subsection Y below
          shall apply.

     (iii)The provisions of this  Subsection H shall supersede the provisions of
          Subsection  7.G of this  Agreement with respect to members of Plans of
          an Acquired Healthcare Entity.

          X.   (i)  Within  twenty  (20) days of the  closing  of an  applicable
               acquisition by Aetna USHC or any of its Affiliates of an Acquired
               Healthcare  Entity  (or  such  later  date  as  such  information
               required  in  connection   with  Subsection  (ii)  above  may  be
               reasonably  obtained  or  developed),  Aetna USHC  shall  provide
               Contractor  with  written  notice of its  election  either (a) to
               cause  the  Behavioral  Healthcare  Services  that are  currently
               performed  by  or  for  the  Acquired  Healthcare  Entity  to  be
               performed by Contractor  pursuant to the terms of this  Agreement
               at rates  determined in accordance with the methodology  provided
               for in Section 6 hereof (as if such  services  constituted a "new
               Plan" under subparagraph (a) of Subsection 6.C of this Agreement)
               as further  described in  Subsection  (ii) below (the "Status Quo
               Election"); or (b) to conduct an auction for such services in the
               manner  set  forth  in  Subsections  (iii)  and (iv)  below  (the
               "Auction  Election").  Aetna USHC shall have the option of either
               (x) making a single  Status Quo Election or Auction  Election for
               the  entire  Acquired  Healthcare  Entity or (y)  subject  to the
               proviso below,  making  separate  Status Quo Elections or Auction
               Elections  for  individual  divisions,  units or  legal  entities
               within  the  Acquired  Healthcare  Entity or (z)  subject  to the
               proviso below,  making  separate  Status Quo Elections or Auction
               Elections  for the  individual  Plans of the Acquired  Healthcare
               Entity;  provided,  however, in the event that Aetna USHC intends
               to make separate  elections  under either  subsection  (y) or (z)
               above,  and as a result of such  election  not all members of any
               product  category  (e.g.,  HMO or Managed Choice) of the Acquired
               Healthcare  Entity would be wholly  within  either the Status Quo
               Election or the Auction Election (any such product category shall
               be  referred  to  as a  "Divided  Product  Category"),  then  the
               following  sentence  shall  apply.  With  respect to each Divided
               Product Category (i) Aetna

                                        6



<PAGE>



               USHC shall have the right to  designate  the number of members to
               be included in the Status Quo Election and (ii) the parties shall
               in good faith mutually agree on the apportionment (based upon the
               number determined in (i)) of the Divided Product Category so that
               the members  included within the Status Quo Election  represent a
               reasonable  cross-section  (considering  factors such as historic
               utilization  rates,  historic  care costs,  historic  revenue per
               member,  contract terms, term and termination  provisions,  among
               other relevant factors) of the Divided Product  Category.  In the
               event the parties do not reach  agreement of the matter  referred
               to within  subsection  (ii) in the preceding  sentence  within 15
               days following delivery of notice of the applicable Election, the
               matter  shall be resolved in  accordance  with Section 13 of this
               Agreement,  provided  that the 60 day period  referred  to in the
               first  sentence of Subsection  13.C shall be 10 business days for
               purposes of this provision.  Notwithstanding the foregoing, Aetna
               USHC  shall not be  obligated  to  exercise  either a Status  Quo
               Election  or an  Auction  Election  with  respect  to  any of the
               activities described in the Excluded Activities Schedule attached
               hereto  (the   "Excluded   Activities").   Consistent   with  the
               Non-Competition  Covenant dated as of December 4,1997, Aetna USHC
               and the Acquired  Healthcare  Entity shall be free to conduct the
               Excluded Activities in any manner they deem appropriate following
               the closing of the acquisition of the Acquired Healthcare Entity.

          (ii) In the event Aetna USHC makes a Status Quo Election,  the parties
               shall cooperate to ensure that the Behavioral Healthcare Services
               are provided by Contractor to the Acquired  Healthcare  Entity as
               soon  as  reasonably   practicable,   consistent   with  existing
               contractual  obligations  of the  Acquired  Healthcare  Entity or
               Aetna USHC and  subject to any  necessary  regulatory  approvals.
               Contractor  may defer  implementation  of the  provision  of such
               services  up to ninety  (90) days from the date of such  election
               notice  if it  has  operational  constraints  on its  ability  to
               perform the Behavioral  Healthcare  Services for the new Acquired
               Healthcare  Entity.  All  members  of Plans for which  Behavioral
               Healthcare  Services  are  performed  as a result of a Status Quo
               Election  shall be  treated  as new  "Members"  for  purposes  of
               Section 7 of this Agreement;  provided, however, it is understood
               that this  provision is not intended to modify the  provisions of
               Section 7, including the annual and aggregate

                                        7



<PAGE>



               maximum  payment  amounts  set forth  therein  for  Tranche 1 and
               Tranche 2 Payments.

          (iii)Within  thirty  (30) days of the date Aetna USHC makes an Auction
               Election, it shall provide Contractor with an offer (the "Offer")
               of  proposed  rates  for  providing  the  Behavioral   Healthcare
               Services  to all  Members  of  Plans of the  Acquired  Healthcare
               Entity with respect to which the Auction  Election is being made,
               consistent with existing contractual  obligations of the Acquired
               Healthcare  Entity  and  subject  to  any  necessary   regulatory
               approvals.  The offer shall  remain open for a period of not less
               than  thirty  (30) days (the  "Offer  Period").  During the Offer
               Period,  Contractor and its  representatives  and agents shall be
               given reasonable access (subject to a  confidentiality  agreement
               between Aetna USHC and Contractor and subject to compliance  with
               any  confidentiality  obligations  of  Aetna  USHC  or any of its
               Affiliates  with  entities  other  than the  Acquired  Healthcare
               Entity or the seller of the Acquired Healthcare Entity,  provided
               that Aetna  USHC  shall  exercise  commercially  reasonable  best
               efforts   to  obtain  a  waiver   of  any  such   confidentiality
               obligations  for this purpose) to the relevant  books and records
               and  personnel  of the Acquired  Healthcare  Entity to review the
               relevant information on the Behavioral  Healthcare Services.  If,
               prior to the expiration of the Offer Period,  Contractor notifies
               Aetna  USHC in writing  that it desires to accept the Offer,  the
               parties  shall,  as promptly as  practicable,  negotiate  in good
               faith a definitive  agreement for the provision of such services.
               With the exception of the  contingent  payment  provisions  under
               this Section 7 (which shall not pertain) and the rate  provisions
               (which shall reflect the Offer),  the terms and conditions of the
               definitive  agreement  shall  be  substantially  similar  to  the
               existing  applicable Vendor Contract between Contractor and Aetna
               USHC.

          (iv) In the event  the  Offer  Period  expires  for any Offer  without
               Contractor  notifying  Aetna  USHC that it desire to accept  such
               Offer,  Aetna  USHC  shall be free to  solicit  bids  from  third
               parties for the provision of Behavioral  Healthcare  Services for
               Plans of the  Acquired  Healthcare  Entity.  Contractor  shall be
               entitled to participate in the bidding process.  Aetna USHC shall
               otherwise  be  entitled  to operate  the  bidding  process in any
               manner it deems appropriate (including,  without limitation,  the
               ability to conduct

                                        8



<PAGE>



               separate  auctions  for  individual  divisions,  units  or  legal
               entities with the Acquired  Healthcare  Entity or by Plan type or
               by  geographical  area)  and for such  period of time as it deems
               appropriate. Except as provided below in the penultimate sentence
               of this paragraph,  in the event the terms of Contractor's  final
               bid (if any) are in  aggregate,  better  for Aetna  USHC than all
               other bona fide bids,  then  Aetna  USHC  shall be  obligated  to
               choose  Contractor as the winning bidder,  and the parties shall,
               as promptly as practicable,  negotiate in good faith a definitive
               agreement for the provision of such services.  With the exception
               of the  contingent  payment  provisions  of this Section 7 (which
               shall not pertain) and the term and rate provisions  (which shall
               reflect the  Contractor's  bid),  the terms and conditions to the
               definitive  agreement  shall  be  substantially  similar  to  the
               existing  Vendor Contract  between  Contractor and Aetna USHC. In
               the event the terms of Contractor's final bid (if any) are not in
               aggregate  better  for Aetna  USHC than all other bona fide bids,
               then Aetna  USHC  shall be free to enter into a contract  for the
               provision of such  services  with any bidder on terms that are in
               the aggregate, better for Aetna USHC than Contractor's final bid.
               In the  event  Aetna  USHC  completes  a bona  fide  auction  and
               concludes,  in good faith, that no bidder (including  Contractor)
               has  made a  commercially  reasonable  offer  for  the  services,
               consistent with then current market  conditions,  then Aetna USHC
               may provide  such  services  internally  until such time as it is
               able to obtain a  commercially  reasonable  offer;  provided,  if
               Contractor believes in good faith that it has made a commercially
               reasonable offer for the services  (notwithstanding  Aetna USHC's
               conclusion otherwise),  the matter shall, at Contractor's written
               request,  be  resolved  in  accordance  with  Section  13 of this
               Agreement.  Other than as  required by law,  Contractor  shall be
               prohibited from disclosing to any third parties the terms of this
               subsection H and the fact that it is participating in the bidding
               process.

          (v)  It is  understood  and agreed  that Aetna USHC may not be able to
               cause all  customers  of an Acquired  Healthcare  Entity who have
               elected  Managed  Behavioral  Health  carve-out  services (or who
               elect to  convert  to such  services)  to enter  into a  business
               relationship  with  Contractor.  In the event  Aetna USHC makes a
               Status  Quo  Election  or  Contractor  accepts an Offer or is the
               winning bidder in an Auction Election, Aetna USHC agrees to

                                        9



<PAGE>



               make  commercially  reasonable  best  efforts  to  persuade  such
               customers to engage with Contractor.

          (vi) All members of Plans for which Behavioral Healthcare Services are
               performed as a result of an Auction election shall not be treated
               as "Members" for purposes of Section 7 of the Agreement.

     Y.   (i)  Within  seventy-five  (75)  days  following  the  closing  of any
          applicable  acquisition of an Acquired  Healthcare Entity,  Aetna USHC
          shall  take or cause to be  taken,  all  reasonably  necessary  action
          (consistent  with  existing  contractual  obligations  of the Acquired
          Healthcare Entity and subject to any necessary  regulatory  approvals)
          to segregate  (unless already  segregated)  the Behavioral  Healthcare
          Business  operations of the Acquired Healthcare Entity into a separate
          and  distinct   division  or  subsidiary  (as  segregated,   the  "BHB
          Component").  In segregating the BHB Component,  Aetna USHC shall have
          the option (the "Put Option") of notifying  Contractor that it intends
          to (a) discontinue  certain services which were previously provided by
          the Acquired  Healthcare Entity or by Third Party Vendors prior to the
          closing of the acquisition of the Acquired  Healthcare  Entity and (b)
          causing those  services to be performed by Contractor  pursuant to the
          terms of this Agreement at the rates determined in accordance with the
          methodology  provided  for in  Section 6 hereof  (as if such  services
          constituted a "new plan" under  subparagraph  (a) of Subsection 6.C of
          this  Agreement)  as  further  described  in  Subsection  (ii)  below;
          provided,  however, if as a result of such Put Option, not all Members
          of any product  category (e.g., HMO or Managed Choice) of the Acquired
          Healthcare  Entity would be wholly subject to the Put Option (any such
          product   category  shall  be  referred  to  as  a  "Divided   Product
          Category"),  then the following  sentence shall apply. With respect to
          each Divided  Product  Category (i) Aetna USHC shall have the right to
          designate  the number of Members to be  included in the Put Option and
          (ii)  the  parties  shall  in  good  faith   mutually   agree  on  the
          apportionment (based upon the number determined in (i)) of the Divided
          Product  Category so that the Members  included  within the Put Option
          represent a  reasonable  cross-section  (considering  factors  such as
          historic utilization rates,  historic care costs, historic revenue per
          member, contract terms, term and termination  provisions,  among other
          relevant  factors) of the Divided Product  Category.  In the event the
          parties do not reach agreement of the

                                       10



<PAGE>



          matter referred to within  subsection  (ii) in the preceding  sentence
          within 15 days  following  delivery of notice of the Put  Option,  the
          matter  shall  be  resolved  in  accordance  with  Section  13 of this
          Agreement,  provided that the 60 days period  referred to in the first
          sentence of Subsection  13.C shall be 10 business days for purposes of
          this provision. Notwithstanding the foregoing, Aetna USHC shall not be
          obligated  to  segregate  (or exercise its Put Option) with respect to
          any of the Excluded  Activities.  Consistent with the  Non-Competition
          Covenant,  Aetna USHC and the Acquired Healthcare Entity shall be free
          to conduct the Excluded Activities in any manner they deem appropriate
          following the closing of the  acquisition  of the Acquired  Healthcare
          Entity.

     (ii) In the event Aetna USHC desires to exercise  its Put Option,  it shall
          provide  Contractor  with written  notice of such intent within twenty
          (20) days  following  the closing of the  acquisition  of the Acquired
          Healthcare Entity, which notice shall specify in reasonable detail the
          services to be performed  by  Contractor,  the Plans  affected and the
          number of members involved. The parties shall then cooperate to ensure
          that the relevant  services are provided by Contractor to the Acquired
          Healthcare Entity as soon as reasonably  practicable,  consistent with
          existing contractual obligations of the Acquired Healthcare Entity and
          subject to any necessary  regulatory  approvals.  Contractor may defer
          implementation  of that provision up to ninety (90) days from the date
          of the  election  notice  if it  has  operational  constraints  on its
          ability to perform the Behavioral Healthcare Services for the Acquired
          Healthcare   Entity.   All  members  of  Plans  for  which  Behavioral
          Healthcare Services are performed as a result of a Put Option shall be
          treated as new "Members" for purposes of Section 7 of this  Agreement;
          provided,  however,  it is  understood  that  this  provision  is  not
          intended to affect the payment  methodology,  including the annual and
          aggregate maximum payment amounts set forth in Section 7 for Tranche 1
          and Tranche 2 Payments.

     (iii)Within  seventy-five (75) days following the closing of an acquisition
          of an Acquired  Healthcare Entity,  Aetna USHC shall prepare (or cause
          to be  prepared) a pro forma income  statement  (the "Pro Forma Income
          Statement")  for the BHB  Component for the twelve month period ending
          on the later of (a) the closing  date of the  acquisition  and (b) the
          month end for which a pro forma

                                       11



<PAGE>



          income  statement can  reasonably  be prepared..  The Pro Forma Income
          Statement  shall be  prepared on a basis  which  assumes  that the BHB
          Component had operated  separately  over this twelve month period with
          separate contracts on such terms as Aetna USHC would be willing to put
          into place,  including  term and rates for  providing or arranging the
          provision of Behavioral  Healthcare Services to all Members covered by
          Plans of such Entity for the assumed  term (the  "Applicable  Contract
          Rates"),   which  term  and  rates  shall  be  clearly   indicated  as
          assumptions  in the Pro Forma Income  Statement.  The Pro Forma Income
          Statement  shall  include  customary  income  and  expense  categories
          (including  allocations of indirect services and overhead costs, which
          are  intended  to present  the  operations  as if they  operated  on a
          stand-alone  basis),  and including  Earnings Before Interest,  Taxes,
          Depreciation & Amortization ("EBITDA").

     (iv) Within  seventy-five (75) days following the closing of an acquisition
          of an Acquired Healthcare Entity, Aetna USHC shall offer (an "Offer"),
          or cause to be offered,  to  Contractor  the right to purchase the BHB
          Component of the Acquired  Healthcare  Entity. The Offer shall include
          all material  terms of the proposed sale  including the purchase price
          and  Applicable  Contract  Rates.  Each Offer shall  remain open for a
          period of not less than forty-five (45) days (the "Offer Period").

     (v)  During the Offer Period, Contractor and its representatives and agents
          shall  be  entitled  to  conduct  a due  diligence  review  of the BHB
          Component and the Acquired Healthcare Entity, in order to evaluate the
          Offer,   and  shall  be  given   reasonable   access   (subject  to  a
          confidentiality  agreement  between  Contractor  and  Aetna  USHC  and
          subject to compliance  with any  confidentiality  obligations of Aetna
          USHC or any of its  Affiliates  with entities  other than the Acquired
          Healthcare  Entity or the seller of the  Acquired  Healthcare  Entity,
          provided that Aetna USHC shall exercise  commercially  reasonable best
          efforts to obtain a waiver of any such confidentiality obligations for
          this purpose) to the books and records and personnel of the Qualifying
          Entity  and  BHB  Component,   including  the  supporting  information
          utilized  to  prepare  the  Pro  Forma  Income  Statement  of the  BHB
          Component.


                                       12



<PAGE>



     (vi) If, prior to the expiration of the Offer Period,  Contractor  notifies
          Aetna USHC in writing that it desires to accept the Offer, the parties
          shall,  as  promptly  as  practicable,   negotiate  in  good  faith  a
          definitive  purchase  agreement  (which,  other  than  the  Applicable
          Contract Rates and other economic terms,  shall contain  substantially
          the same terms and  conditions  contained in the  definitive  purchase
          agreement  pursuant to which Magellan  acquired  Contractor from Aetna
          USHC) and a definitive  vendor  contract,  on  substantially  the same
          terms  and  conditions  (other  than  the  rates  which  shall  be the
          Applicable   Contract  Rates)  as  those  contained  in  the  existing
          applicable Vendor Contracts between Contractor and Aetna USHC.

     (vii)In the event that Contractor  notifies (the  "Non-acceptance  Notice")
          Aetna  USHC that it does not  accept  the  Offer or the  Offer  Period
          expires for any Offer without Contractor  notifying Aetna USHC that it
          desires to accept  such Offer,  Aetna USHC shall take,  or cause to be
          taken, all commercially  reasonable  efforts to sell the BHB Component
          to a non-affiliate of Aetna USHC, provided, however, that the purchase
          price,  rates for services and other  material  terms of any sale to a
          non-affiliate  shall not be more  favorable  (viewed  on an  aggregate
          basis) to the third party than the purchase price, Applicable Contract
          Rates  and  other  material  terms  set  forth  in  the  Offer  to the
          Contractor  (viewed on an aggregate  basis).  Magellan  shall have the
          right to submit a bid in connection with any auction conducted to sell
          the BHB  Component.  If Aetna USHC (or its  Affiliate,  as applicable)
          does not enter into a  definitive  agreement  with a third  party with
          respect to the sale of the BHB  Component  by the end of the  "Selling
          Period" (as defined below), then for a period of 45 days following the
          expiration  of the  Selling  Period (the  "Option  Period"),Contractor
          shall have the option (the  "Purchaser  Option")  to purchase  the BHB
          Component on terms equal to the more  favorable to Aetna USHC of (a) a
          purchase  price  equal to the fair market  value of the BHB  Component
          (assuming the  Applicable  Contract  Rates and other material terms of
          the Offer apply), as determined by a mutually  acceptable  independent
          investment  banking  firm or (b) on terms equal to the most  favorable
          terms to Aetna USHC (viewed on an aggregate basis) received during the
          Selling  Period by Aetna  USHC from a bona fide third  party  making a
          bona fide offer (the "Bona fide Offer") to purchase the BHB  Component
          (an offer shall

                                       13



<PAGE>



          be considered a Bona fide Offer only if, among other things, the third
          party was willing to  consummate  the offer  pursuant to its terms and
          that the information received from Aetna USHC upon which the offer was
          based was true and  correct  in all  material  respects).  During  the
          Option Period,  Contractor and its representatives and agents shall be
          entitled to conduct  confirmatory  due  diligence of the BHB Component
          subject  to a  confidentiality  agreement.  In  the  event  Contractor
          notifies  Aetna USHC in writing  before the  expiration  of the Option
          Period that it desires to exercise its Purchaser  Option,  the parties
          shall negotiate in good faith a definitive  purchase  agreement (which
          shall contain  substantially the same terms and conditions (other than
          with  respect to rates and other  economic  terms) as contained in the
          definitive  purchase  agreement  pursuant to which  Magellan  acquired
          Contractor  from  Aetna  USHC)  and a  vendor  contract  charging  the
          Applicable Contract Rates and for the term specified in the Offer (or,
          in the event  there is a Bone Fide  Offer  that is more  favorable  to
          Aetna USHC than the fair  market  valuation,  at the rates and for the
          term  applicable  to the Bona fide  Offer) and  including  all Members
          covered by any Plan of the Acquired Healthcare Entity. For purposes of
          this Subsection  (vi), the term "Selling Period" shall mean the period
          commencing  upon the  earlier  of the  receipt  of the  Non-acceptance
          Notice or the expiration of the Offer Period (the "Commencement Date")
          and continuing for 120 days following the Commencement Date,  provided
          that the Selling  Period  shall  continue for 150 days  following  the
          Commencement Date if Aetna USHC (or its Affiliate,  as applicable) has
          entered into a letter of intent with a third party with respect to the
          sale of the BHB Component  within 120 days following the  Commencement
          Date.

     (viii) In the event  that  Aetna  USHC (or its  Affiliate,  as  applicable)
          enters into a definitive  agreement during the Selling Period, for any
          BHB  Component,  and  the  purchase  and  sale  contemplated  by  such
          definitive  agreement is not consummated within six months of the date
          such  agreement was executed (or for such longer period as any federal
          or state  regulatory  or antitrust  approvals  may be  pending),  then
          Contractor  shall  have a  Purchase  Option  with  respect to such BHB
          Component  for 45 days  following  the  expiration  of such six  month
          period (or longer) on the same terms as described  above in Subsection
          (vii).

                                       14



<PAGE>



     (ix) In the event any state or federal  regulatory or  governmental  entity
          prevents  the sale to  Contractor  of the BHB  Component  (or any part
          thereof) or the sale of the BHB Component is not  consummated  because
          the  conditions  to  closing  set  forth  in the  definitive  purchase
          agreement are not satisfied or waived (other than the  nonsatisfaction
          of a condition  as a result of a breach by Aetna USHC of the  purchase
          agreement),  after  reasonable  good  faith  efforts  to  obtain  such
          approvals or satisfy such conditions, then Aetna USHC shall be free to
          dispose  of the  BHB  Component  (or the  relevant  part  thereof)  or
          continue its operations in any manner Aetna USHC deems appropriate.

7. Amendment to Section 12 of the Agreement.

Section 12 is hereby amended by adding a new Subsection 12.C as follows:

C. HAI and Aetna USHC shall each have the right to audit and inspect at any time
during  normal  business  hours  upon  reasonable   notice,   (a)  documents  or
information  pertaining to verification of membership,  in the possession of the
other party,  covered under this Agreement and the Vendor  Contracts and (b) any
documentation or information  relevant to determinations under Subsection 6.C of
this  Agreement,  in each case  subject  to a  confidentiality  agreement  to be
entered into between the parties.

8.    Miscellaneous.

a.   All references in the Agreement to the "Agreement" and any other references
     of similar  import shall  henceforth  mean the Agreement as amended by this
     Amendment.  All  capitalized  terms used but not otherwise  defined  herein
     shall have the meaning ascribed to them in the Agreement as amended by this
     Amendment.

b.   Except to the extent  specifically  amended by this  Amendment,  all of the
     terms and conditions contained in the Agreement shall be and remain in full
     force and effect.

c.   This  Amendment  shall be  binding  upon and inure to the  benefit of Aetna
     USHC, Magellan and HAI and their respective successors and assigns.

d.   In the event of any  inconsistency  or conflict  between this Amendment and
     the Agreement, the terms, provisions and conditions of this Amendment shall
     govern and control.


                                       15



<PAGE>


e.   This  Amendment  shall be governed by and construed in accordance  with the
     internal laws of the State of Delaware.


IN WITNESS  WHEREOF,  the parties  hereto have executed this Amendment as of the
date first written above.

AETNA U.S. HEALTHCARE INC.             MAGELLAN HEALTH SERVICES, INC.

By:  /s/ Daniel S. Messina             By:  /s/ Craig L. McKnight
     -----------------------               -------------------------------------
     Name: Daniel S. Messina               Name: Craig L. McKnight
     Title: Deputy CFO                     Title: Executive Vice President & CFO
     Date: December 4, 1997                Date: December 4, 1997


                                       HUMAN AFFAIRS INTERNATIONAL,
                                        INCORPORATED


                                       By:  /s/ Thomas M. Bendoratis
                                           -------------------------------------
                                           Name: Thomas M. Bendoraitis
                                           Title: Vice President & CFO
                                           Date: December 4, 1997


                                       16



                          Independent Auditors' Consent



The Board of Directors
Human Affairs International, Incorporated



         We  consent to the  inclusion  of our report  dated  February  7, 1997,
except as to note 10 which is as of  February  27,  1997,  with  respect  to the
consolidated  balance sheets of Human Affairs  International,  Incorporated  and
subsidiaries  as of  December  31, 1996 and 1995,  and the related  consolidated
statements of income,  stockholder's  equity,  and cash flows for the years then
ended,  which report appears in the Form 8-K of Magellan Health  Services,  Inc.
dated December 17
, 1997.



                                                     /s/ KPMG Peat Marwick LLP
                                                     -------------------------  


Salt Lake City, Utah
December 17, 1997



                                      - 1 -




FOR IMMEDIATE RELEASE

         Magellan Investor Contact:                    Aetna Investor Contact:
         Kevin Helmintoller                            Catherine H. Smith
         (404) 814-5742                                (860)273-6184

         Magellan Media Contact:                       Aetna Media Contact:
         Robert Mead                                   Joyce A. Oberdorf
         (212) 445-8208                                (860)273-7392


         MAGELLAN TO PURCHASE HUMAN AFFAIRS INTERNATIONAL

      -HAI and Aetna U.S. Healthcare Also Agree to Strategic Relationship-

- --------------------------------------------------------------------------------


ATLANTA,  GA, August 5, 1997 -- Magellan Health  Services,  Inc.  (NYSE:MGL) and
Aetna Inc.  (NYSE:AET)  announced  today that  Magellan  has signed a definitive
agreement for the purchase of Human Affairs International, Incorporated (HAI), a
unit of Aetna U.S. Healthcare, the health business unit of Aetna.
         In  addition,  Magellan and Aetna U.S.  Healthcare  have entered into a
long-term strategic relationship that will allow Aetna U.S. Healthcare's members
continuing access to HAI's broad network of behavioral health professionals.
         HAI manages the care of over 15 million covered lives through  employee
assistance  programs (EAPs) and managed behavioral health plans. HAI will become
a wholly owned subsidiary of Magellan Health Services.  The addition of HAI will
double, to 32 million, the number of covered lives for whom Magellan's operating
units manage behavioral care and employee assistance  programs,  making Magellan
the leading behavioral care manager in the country.

                                    - more -

<PAGE>


                                      - 2 -

         Terms of the  transaction  will include a payment of $122.1  million in
cash by Magellan  at  closing.  In  addition,  under the terms of the  strategic
relationship,  payments of up to $300  million may be made by Magellan  over the
term of the  agreement.  The  transaction,  which will be recorded as a purchase
transaction  by Magellan,  is subject to federal and state  approvals  and other
customary conditions, and is expected to close in the fourth quarter of calendar
1997.
         "We are pleased to welcome HAI, its  employees and its broad network of
providers  to  the  growing  Magellan  family,"  said  Mac  Crawford,  chairman,
president  and CEO of Magellan.  "The  acquisition  of HAI will be another major
step forward in our strategy to focus more on the specialty managed care segment
of the healthcare business.  HAI has been a strong performer,  especially in the
employee  assistance  market and in providing  service to Aetna U.S.  Healthcare
members.  Our  previous  purchase  of a majority  interest  in Green  Spring has
performed  very well since our  acquisition  and we expect HAI to  continue  its
strong performance as well."
          Crawford  continued,  "We are excited  that we could pay for this with
cash  on  hand  and  going  forward,  we  will  continue  to  aggressively  seek
acquisition  and investment  opportunities.  Under the Magellan  holding company
structure we are well positioned to participate in the ongoing  consolidation of
both the managed care and provider segments of behavioral healthcare."
         "We  believe  that  behavioral   health  is  an  integral  part  of  an
individual's  overall health and wellness," said Michael J. Cardillo,  president
of Aetna U.S. Healthcare.  "This transaction is consistent with our focus on our
core  managed  care   business  and   signifies   our   commitment  to  offering
comprehensive,  high quality behavioral health programs, employee assistance and
substance abuse programs, with the broadest possible choice of provider networks
and in a  cost-effective  manner.  This transaction also establishes a long-term
strategic relationship with competitive, fixed provider rates."
         HAI, headquartered in Salt Lake City, provides mental health,  employee
assistance and substance abuse treatment programs,  serving more than 15 million
covered lives, of which a majority are Aetna U.S.  Healthcare  members.  HAI was
founded in 1973 as a provider of employee  assistance  programs and was acquired
by Aetna in 1988.

                                    - more -

                                                     

<PAGE>


                                      - 3 -

     Magellan Health Services,  Inc. is one of the country's largest  integrated
behavioral  health care  companies.  Its business units include:  Majority-owned
Green Spring  Health  Services,  a leader in behavioral  managed care  services;
Magellan  Public  Solutions,  serving  public sector  agencies  with  privatized
behavioral  health  services;   Charter  Franchise  Services,  an  international
franchisor  of  behavioral  health  care  systems;  and 50%  interest in Charter
Behavioral  Health Systems,  the largest  operator of  free-standing  behavioral
health facilities in the U.S.

     Aetna U.S.  Healthcare,  the health  business  unit of Aetna  Inc.,  is the
nation's leading health benefits  organization with a total health enrollment of
more than 14 million members nationwide.

     Certain  of  the  statements  in  this  press  release  including,  without
limitation,  statements by Magellan regarding acquisition opportunities,  growth
in  managed  lives,  and  expectations  as  to  HAI's  future  performance,  and
statements   regarding   amounts   potentially   payable   under  the  strategic
relationship  constitute   forward-looking  statements  contemplated  under  the
Private  Securities  Reform Act of 1995.  Risk  factors  such as the  ability to
successfully  complete and integrate  acquisitions  could prevent  Magellan from
consummating  the future  acquisition  opportunities or achieving the growth and
performance mentioned. Also, the amounts potentially payable under the strategic
relationship  are  contingent  upon a number of factors and no assurances can be
made that the payments will be made or received by the respective parties. For a
more complete discussion of these and other risk factors,  please see Exhibit 99
contained in Magellan's  Annual Report on Form 10-K, as amended,  for the fiscal
year ended September 30, 1996 filed with the Securities and Exchange  Commission
on April 23, 1997 and  Magellan's  Form 10-Q for the third fiscal  quarter ended
June 30, 1997 to be filed with the Securities  and Exchange  Commission no later
than August 14, 1997.

                                                        ###





                                      - 1 -







FOR IMMEDIATE RELEASE


         Magellan Investor Contact:                   Aetna Investor Contact:
         Kevin Helmintoller                           Catherine H. Smith
         (404) 814-5742                               (860)273-6184

         Magellan Media Contact:                      Aetna Media Contact:
         Robert Mead                                  Jill B. Griffiths
         (212) 445-8208                               (215)775-6890

                     AETNA U.S. HEALTHCARE COMPLETES SALE OF
                     HUMAN AFFAIRS INTERNATIONAL TO MAGELLAN

               Long-Term Strategic Provider Relationship Commences

- --------------------------------------------------------------------------------

ATLANTA, GA and HARTFORD, CT, December 5, 1997 -- Magellan Health Services, Inc.
(NYSE:MGL)  and Aetna Inc.  (NYSE:AET)  announced  today the  completion  of the
transaction in which Magellan  acquired Human Affairs  International  (HAI), the
behavioral health subsidiary of Aetna U.S. Healthcare.  Terms of the transaction
included  a  payment  of $122.1  million  in cash by  Magellan  at  closing.  In
addition, under the terms of the strategic relationship,  payments of up to $300
million  may be made by  Magellan  over  the  term  of the  long-term  strategic
relationship.  HAI has  become a  wholly-owned  subsidiary  of  Magellan  Health
Services.
         The  two  companies  have  commenced  a  long-term  strategic  provider
relationship  which will provide Aetna U.S.  Healthcare  members with  continued
access to HAI's broad network of behavioral health professionals,  as well as to
Magellan's existing network of behavioral health providers across the country.
         Mac Crawford,  chairman,  president and CEO of Magellan  said,  "We are
pleased to welcome Human Affairs  International as one of our growing behavioral
managed care operations.  The inclusion of the long-term strategic  relationship
with Aetna U.S. Healthcare is

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exciting and should provide HAI with significant growth opportunities over the
term of the agreement while continuing to benefit Aetna U.S. Healthcare."
         "We're pleased to develop a long-term relationship with Magellan, which
not only  maintains HAI behavioral  health  professionals  for our members,  but
allows even greater access to Magellan's  professionals  and  facilities,"  said
Daniel S. Messina, vice president and head of business strategies for Aetna U.S.
Healthcare.
         HAI,  headquartered  in Salt  Lake  City,  provides  behavioral  health
programs to more than 15 million  covered lives, of which the majority are Aetna
U.S. Healthcare members.
         Magellan  Health  Services,  Inc.  is  one  of  the  country's  largest
specialty care managers. Its business units include: Majority owned Green Spring
Health  Services,  a leader in  behavioral  managed care services with nearly 20
million covered lives;  Human Affairs  International  (HAI),  one of the largest
providers of workplace assistance programs in the United States; MENTOR/Magellan
Public  Solutions,  serving public sector  agencies with  privatized  behavioral
health services;  Charter Advantage,  an international  franchisor of behavioral
health care systems;  and 50% interest in Charter Behavioral Health Systems, the
largest operator of free-standing  behavioral facilities in the U.S; and subject
to consummation of a previously announced purchase transaction, Merit Behavioral
Care  Corporation  (MBC),  one of the  largest  providers  of mental  health and
substance  abuse  services  and  employee  assistance  programs  to more than 21
million enrollees and 800 clients.
         Aetna U.S.  Healthcare,  the health business unit of Aetna Inc., is the
nation's leading health benefits  organization with a total health enrollment of
approximately 14 million members nationwide.
         Certain of the  statements  in this press  release  including,  without
limitation,  statements by Magellan  concerning HAI's growth  opportunities  and
amounts  potentially  payable  under  the  strategic   relationship   constitute
forward-looking statements under the Private Securities Litigation Reform Act of
1995. Risk factors such as the ability to  successfully  close and integrate the
MBC transaction and to successfully  integrate the HAI acquisition could prevent
Magellan from  achieving the growth  mentioned.  Also,  the amounts  potentially
payable under the

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strategic relationship are contingent upon a number of factors and no assurances
can be made  that  the  payments  will be made  or  received  by the  respective
parties. For a more complete discussion of these and other risk factors,  please
see Magellan's  Quarterly Report on Form 10-Q for the third fiscal quarter ended
June 30, 1997 filed with the  Securities  and Exchange  Commission on August 14,
1997 and Exhibit 99  contained  in  Magellan's  Annual  Report on Form 10-K,  as
amended for the fiscal year ended  September 30, 1996 filed with the  Securities
and Exchange Commission.
                                                    

                                                    


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