EMCARE HOLDINGS INC
8-K, 1996-05-15
SPECIALTY OUTPATIENT FACILITIES, NEC
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                      SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, DC 20549



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



                                   FORM 8-K

                                CURRENT REPORT
                    PURSUANT TO SECTION 13 OR 15(d) OF THE
                       SECURITIES EXCHANGE ACT OF 1934



Date of Report (Date of earliest event reported)      April 30, 1996


                             EMCARE HOLDINGS INC.
- ------------------------------------------------------------------------------
              (Exact Name of Registrant as Specified in Charter)



         Delaware                   0-24986                 13-3645287
- -------------------------------------------------------------------------------
     (State or Other              (Commission              (IRS Employer
       Jurisdiction              File Number)           Identification No.)
    of Incorporation)


              1717 Main Street, Suite 5200, Dallas, Texas 75201
- ------------------------------------------------------------------------------
(Address of Principal Executive Offices)                            (Zip Code)



Registrant's telephone number, including area code  (214) 712-2000



- ------------------------------------------------------------------------------
        (Former Name or Former Address, if Changed Since Last Report)



                             

<PAGE>





Item 2.     Acquisition or Disposition of Assets.

On April 30, 1996,  EmCare,  Inc., a wholly owned  subsidiary of EmCare Holdings
Inc. (the  "Company"),  closed an acquisition of all of the outstanding  capital
stock of Medical Emergency Service  Associates,  Inc. ("MESA").  The acquisition
was  effective  as of  April 1,  1996.  MESA's  principal  assets  are  practice
management   service   contracts  with  eight  emergency   departments  and  two
Occupational  Medicine  clinics  located in the  Chicago  and  Western  Illinois
markets. During the year ended September 30, 1995, MESA generated net revenue of
$13.4 million from these contracts.

In the  acquisition,  the  Company  paid  the  former  stockholders  of  MESA an
aggregate of  $7,815,933  and will issue to them 56,355  shares of the Company's
common  stock,  par value $.01 per  share.  These  amounts  were  determined  by
arms-length  negotiations among the Company,  EmCare, Inc., MESA, and the former
stockholders  of MESA.  One-third of the shares will be issued and  delivered to
the former  stockholders of MESA on each of the next three  anniversaries of the
closing  date.  The  Company  used its line of credit with Texas  Commerce  Bank
National  Association,  as agent for itself and CoreStates Bank, N.A., NBD Bank,
and First Interstate Bank of Texas, N.A. to pay the $7,815,933.  For purposes of
the  acquisition,  the Company valued the 56,355 shares at $26.617 per share, or
an aggregate of $1,500,000. In addition, under the Stock Purchase Agreement, the
former stockholders of MESA could be entitled to receive three deferred payments
of $325,000 each based upon the  continuation of the hospital  contracts,  three
performance  payments  in an  aggregate  amount  of  $1,200,000  based  upon the
adjusted net income  attributable to such contracts,  and two incentive  earnout
payments  of up to  $1,000,000  each,  also based upon the  adjusted  net income
attributable to such contracts.  Prior to the  acquisition,  neither the Company
nor any of its affiliates,  directors, officers, or associates of such directors
or officers had a material relation with MESA or any of its stockholders.

The former  stockholders of MESA have agreed to continue to work as employees of
MESA. In the Stock  Purchase  Agreement,  these  individuals  also agreed not to
compete  against  the  Company  for  the  three  years   immediately  after  the
acquisition.  The Company  allocated  $925,000 of the acquisition  consideration
paid upon consummation of the acquisition to these covenants not to compete.

The Company and EmCare,  Inc. plan to continue to use the plant,  equipment,  or
other physical property acquired from MESA in the same manner in which they were
used by MESA prior to the acquisition.

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

            (a)   Financial Statements of Business Acquired.

                  It is impracticable to file the financial  statements required
                  by Item 7(a) with the  initial  filing of this  Report on Form
                  8-K. Such financial  statements  will be filed by amendment to
                  this  Report as soon as  practicable  and within 60 days after
                  the required filing date for this Report.


                                  
<PAGE>

            (b)   Pro Forma Financial Information.

                  It  is   impracticable   to  file  the  pro  forma   financial
                  information  required by Item 7(b) with the initial  filing of
                  this Report on Form 8-K. Such pro forma financial  information
                  will  be  filed  by  amendment  to  this  Report  as  soon  as
                  practicable  and within 60 days after the required filing date
                  for this Report.

                                  SIGNATURES

            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.

                                          EMCARE HOLDINGS INC.
                                             (Registrant)




Date:  May 14, 1996                 By:   /s/  Robert F. Anderson, II
                                          -----------------------
                                    Name:  Robert F. Anderson, II
                                    Title: Chief Financial Officer, Senior Vice
                                           President, Treasurer, and Secretary


                                  
<PAGE>



                                EXHIBIT INDEX
                                -------------

            Exhibit No.                Description                   Page
            -----------                -----------                   ----

                2.1        Stock Purchase Agreement, dated as         5
                           of April 1, 1996, among EmCare
                           Holdings Inc., EmCare, Inc.,
                           Medical Emergency Service
                           Associates (MESA), S.C. and its
                           Stockholders


                            STOCK PURCHASE AGREEMENT
                                     AMONG
                             EMCARE HOLDINGS INC.,
                                 EMCARE, INC.,
               MEDICAL EMERGENCY SERVICE ASSOCIATES (MESA), S.C.
                              AND ITS STOCKHOLDERS

                                 APRIL 1, 1996


                                      


                                TABLE OF CONTENTS

I. CONVERSION AND PURCHASE AND SALE OF SHARES................................1
       Section 1.1 Purchase and Sale of the Shares...........................1
       Section 1.2 Conversion................................................2
       Section 1.3 Effective Date............................................2
       Section 1.4 No Transfers of Target Shares.............................2

II. PAYMENT FOR THE TARGET SHARES............................................2
       Section 2.1 Payment Agent.............................................2
       Section 2.2 Delivery of Closing Date Cash and Closing Date
            Shares...........................................................2
       Section 2.3 Determination of Number of Parent Shares..................3
       Section 2.4 Delivery of Target Share Certificates.....................3
       Section 2.5 Contract Retention Payments...............................3
       Section 2.6 Performance Payments......................................3
       Section 2.7 Incentive Earnout Payments................................4
       Section 2.8 Calculation of the Adjusted Net Income....................4
            (a) Disagreement With the Calculation............................4
            (b) Fees of the Certified Public Accountants.....................5
       Section 2.9 Final Balance Sheet.......................................5
            (a) Final Balance Sheet Liabilities..............................5
            (b) Disagreement With the Final Balance Sheet....................5
            (c) Fees of the Certified Public Accountants.....................6
            (d) Adjustment to Closing Date Cash..............................6
       Section 2.10 Allocation of the Sale Consideration.....................6
       Section 2.11 Withholding..............................................7
       Section 2.12 Restriction on the Transfer of the Parent Shares.........7
       Section 2.13 Lack of Marketability....................................7
            (a) No Registration..............................................7
            (b) No Transfer..................................................8
            (c) Limited Registration Rights..................................8

III. REGISTRATION RIGHTS.....................................................8
       Section 3.1 Piggyback Registration Rights.............................8
            (a) Piggyback Registration Rights Election.......................8
            (b) Underwriter's Cutback........................................8
       Section 3.2 Demand Registration Rights................................9
            (a) Demand Registration Statement................................9
            (b) Delay in Filing the Demand Registration Statement............9
            (c) Ineffective Demand Registration Statement...................10
       Section 3.3 Preparation of a Stockholder Registration Statement......10
       Section 3.4 Underwritten Offerings...................................10
       Section 3.5 Blue Sky Registrations...................................10

<PAGE>

       Section 3.6 Expenses.................................................10
       Section 3.7 Indemnification..........................................10
            (a) Indemnification by the Stockholders.........................11
            (b) Indemnification by the Parent...............................11
            (c) Other Agreements............................................11
       Section 3.8 Copies of the Prospectus.................................11
       Section 3.9 Legal Opinions and Comfort Letters.......................12
       Section 3.10 Registration Rights Nontransferable.....................12

IV. CLOSING.................................................................12
       Section 4.1 Consummation of the Conversion and Sale..................12
       Section 4.2 Conditions to the Parent's and the Company's
            Obligation to Consummate the Sale...............................12
            (a) Representations and Warranties..............................12
            (b) Covenants...................................................12
            (c) Medical Services Subcontract and Assignment of
                  Physician Contracts.......................................13
            (d) Transfer of Miscellaneous Assets............................13
            (e) Closing Certificate.........................................13
            (f) Consents....................................................13
            (g) Addendum to Physician Stockholder Employment Agreements.....13
            (h) Target Lease Amendment......................................13
            (i) No Material Adverse Change..................................13
            (j) Legal Opinion...............................................13
            (k) Target Secretary's Certificate..............................13
            (l) Wagner Litigation...........................................14
            (m) Release of Kirchoff Guaranty................................14
            (n) Due Diligence...............................................14
            (o) Books and Records...........................................14
            (p) Resignations................................................14
            (q) Employee Benefit Plans......................................14
            (r) Former Stockholder Obligations..............................15
            (s) Other.......................................................15
                  
       Section 4.3 Conditions to the Target's and the Stockholders'
            Obligation to Consummate the Sale...............................15
            (a) Representations and Warranties..............................15
            (b) Covenants...................................................15
            (c) Closing Certificate.........................................15
            (d) No Material Adverse Change..................................15
            (e) Legal Opinion...............................................15
            (f) Parent Secretary's Certificate..............................15
            (g) Company Secretary's Certificate.............................16
            (h) Service Corporation Secretary's Certificate.................17
            (i) Addendum to Physician Stockholder Employment Agreements.....17
            (j) Other.......................................................17
                  
V. REPRESENTATIONS AND WARRANTIES...........................................17
       Section 5.1 Representations and Warranties of the Parent and the
            Company.........................................................17

<PAGE>

            (a) Organization of the Parent..................................18
            (b) Organization of the Company.................................18
            (c) Power and Authority of the Parent...........................18
            (d) Power and Authority of the Company..........................18
            (e) Execution, Delivery, and Enforceability.....................18
            (f) Consents....................................................18
            (g) Conflicts...................................................18
            (h) Permits.....................................................19
            (i) Regulatory Filings..........................................19
            (j) Issuance of the Parent Shares...............................19
            (k) No Broker...................................................19
            (l) Compliance With Applicable Laws.............................19
            (m) Funding of the Acquisition..................................19
            (n) Disclosure..................................................19
       Section 5.2 Representations and Warranties of the Target and the
            Stockholders....................................................20
            (a) Organization of the Target..................................20
            (b) Power and Authority of the Target...........................20
            (c) Execution, Delivery, and Enforceability.....................20
            (d) Target Shares...............................................20
            (e) No Other Securities.........................................20
            (f) Subsidiaries................................................20
            (g) Hospital Contracts..........................................21
            (h) Physician Contracts.........................................21
            (i) Other Contracts.............................................22
            (j) Contracts Generally.........................................22
            (k) Consents....................................................23
            (l) No HSR Filing Required......................................23
            (m) Conflicts...................................................23
            (n) Permits.....................................................23
            (o) Compliance with Applicable Laws.............................23
            (p) Financial Statements........................................23
            (q) Absence of Certain Changes..................................24
            (r) Accounts Receivable.........................................24
            (s) Tangible Property...........................................24
            (t) No Undisclosed Liabilities..................................25
            (u) Related Party Indebtedness..................................25
            (v) Permitted Liens.............................................25
            (w) Litigation and Claims.......................................25
            (x) Taxes.......................................................25
            (y) Insurance...................................................27
            (z) Employee Benefit Plans......................................27
            (aa) Labor Relations............................................30
            (bb) Environmental Matters......................................31
            (cc) Licenses to Practice Medicine..............................31
            (dd) No Broker..................................................31
            (ee) Absence of Certain Business Practices......................31

<PAGE>

            (ff) Solvency...................................................32
            (gg) Disclosure.................................................32
            (hh) No Corporate Practice......................................32
       Section 5.3 Representations and Warranties of Each Stockholder.......32
            (a) Legal Capacity..............................................32
            (b) Execution, Delivery, and Enforceability.....................32
            (c) Target Shares...............................................32
            (d) Conflicts...................................................32
            (e) Compliance With Applicable Laws.............................32
            (f) No Disciplinary Proceedings.................................33
            (g) Sophisticated Investor......................................33
            (h) Covenant Not to Compete.....................................33

VI. COVENANTS...............................................................34
       Section 6.1 Best Efforts to Consummate the Sale......................34
       Section 6.2 Access to the Target.....................................34
       Section 6.3 Operation of the Target Pending the Sale.................34
            (a) Representations and Warranties..............................34
            (b) Operate the Business in the Ordinary Course.................34
            (c) Maintain Goodwill...........................................34
            (d) No Material Adverse Change..................................34
            (e) No Transaction in Target Shares.............................34
            (f) No Dividends................................................34
            (g) Maintain Assets.............................................34
            (h) Disposition of Assets.......................................35
            (i) Borrow Money................................................35
            (j) Make Payments...............................................35
            (k) Pay Taxes...................................................35
            (l) No Liens....................................................35
            (m) No Changes to Contracts.....................................35
            (n) Perform Obligations.........................................35
            (o) Insurance Coverage..........................................35
            (p) No Changes in Accounting Principles.........................35
            (q) Change Key Employees........................................35
            (r) Compensation................................................35
            (s) Employee Benefit Plans......................................35
            (t) Loans to Affiliates.........................................35
            (u) No Agreements Concerning the Foregoing......................36
       Section 6.4 Changes to the Information Disclosed on the
            Schedules.......................................................36
            (a) Information on the Schedules................................36
            (b) Representations, Warranties, and Covenants..................36
       Section 6.5 Satisfaction of the Closing Conditions...................36
       Section 6.6 NASD Filing..............................................36
       Section 6.7 Form 8-K Financial Statements............................36
       Section 6.8 Employee Notices.........................................37
       Section 6.9 No Transfer of Target Shares.............................37

<PAGE>

       Section 6.10 Public Announcements....................................37
       Section 6.11 No Shopping.............................................37
       Section 6.12 Target Lease............................................37
       Section 6.13 Target Directors and Officers Following the Sale........38
       Section 6.14 Pending Negotiations and Execution of Hospital
            Contracts.......................................................38

VII. COVENANTS NOT TO COMPETE OR DISCLOSE CONFIDENTIAL INFORMATION..........38
       Section 7.1 Covenant Not to Compete..................................38
            (a) Solicit Hospitals and Physicians............................38
            (b) Provide Emergency Department Services.......................38
            (c) Assist Competitors..........................................38
            (d) Send Clients to Competitors.................................38
       Section 7.2 Indirect Competition.....................................39
       Section 7.3 No Disclosure of Confidential Information................39
            (a) Advisors....................................................39
            (b) Public Information..........................................39
            (c) Required by Law.............................................39
            (d) Tax Returns.................................................39
       Section 7.4 Reasonableness...........................................39
       Section 7.5 Judicial Enforcement.....................................39
       Section 7.6 Condition to Payments....................................40

VIII. INDEMNIFICATION.......................................................40
       Section 8.1 Indemnification of the Parent and the Company............40
            (a) Breaches....................................................40
            (b) Failure to Perform..........................................40
            (c) Medical Malpractice Claim...................................40
            (d) Physicians..................................................40
            (e) Medicare and Medicaid Audits................................40
            (f) Violation of Applicable Law.................................41
            (g) Employees...................................................41
            (h) Employee Claims.............................................41
            (i) Environmental Laws..........................................41
            (j) Employee Benefit Plans......................................41
            (k) Stockholder Claims..........................................41
       Section 8.2 Indemnification of the Target and the Stockholders.......42
            (a) Breaches....................................................42
            (b) Failure to Perform..........................................42
            (c) Contracts...................................................42
       Section 8.3 Indemnification Procedure................................42
            (a) Defense of a Claim..........................................42
            (b) Participation of the Indemnitee.............................42
            (c) Settlement of Claims........................................42
            (d) Cooperation.................................................43
       Section 8.4 Negligence...............................................43

<PAGE>

       Section 8.5 Non-Exclusivity of Remedies..............................43
       Section 8.6 Insurance................................................43
       Section 8.7 Tax Indemnification......................................43
            (a) Stockholders Liability for Taxes............................43
            (b) Parent's Liability for Taxes................................44
            (c) Survival....................................................44

IX. TERMINATION.............................................................44
       Section 9.1 Termination of this Agreement............................44
            (a) Consent.....................................................44
            (b) Breach by the Target or the Stockholders....................44
            (c) Breach by the Parent or the Company.........................45
            (d) Outside Date................................................45
       Section 9.2 Effect of Termination....................................45
       Section 9.3 Disclosure of this Agreement.............................45

X. GENERAL..................................................................45
       Section 10.1 Amendment...............................................45
       Section 10.2 Attorneys' Fees.........................................45
       Section 10.3 Counterparts............................................46
       Section 10.4 Cumulative Remedies.....................................46
       Section 10.5 Tax Matters.............................................46
            (a) Tax Periods Ending On or Before the Effective Date..........46
            (b) Parent......................................................46
            (c) Cooperation on Tax Matters..................................46
            (d) Tax Consents................................................47
            (e) Certain Taxes...............................................48
       Section 10.6 Definitions.............................................48
            (a) Adjusted Net Income.........................................49
            (b) Affiliate...................................................49
            (c) Alternate Certified Public Accountants......................49
            (d) Applicable Law..............................................49
            (e) Business Day................................................49
            (f) Certified Public Accountants................................49
            (g) Code........................................................49
            (h) Claim.......................................................49
            (i) Confidential Information....................................50
            (j) Contract....................................................50
            (k) Document....................................................50
            (l) Emergency Department Services...............................50
            (m) Environmental Law...........................................50
            (n) Law Affecting Creditors' Rights.............................50
            (o) Lawsuit.....................................................50
            (p) Lien........................................................50
            (q) Material Adverse Change.....................................50
            (r) Material of Environmental Concern...........................51

<PAGE>

            (s) Non-Compete Period..........................................51
            (t) Person......................................................51
            (u) Subsidiary..................................................51
            (v) Tax. .......................................................51
            (w) Tax Return..................................................51
       Section 10.7 Entire Agreement........................................51
       Section 10.8 Expenses................................................51
       Section 10.9 Further Assurances......................................52
       Section 10.10 Governing Law..........................................52
       Section 10.11 Headings...............................................52
       Section 10.12 No Assignment..........................................52
       Section 10.13 No Third-Party Beneficiaries...........................52
       Section 10.14 Notices................................................52
       Section 10.15 Performance on Business Days...........................53
       Section l0.16 Plural and Singular Words..............................53
       Section 10.17 Pronouns...............................................53
       Section 10.18 Schedules..............................................54
       Section 10.19 Set-Off................................................54
       Section 10.20 Severability...........................................54
       Section 10.21 Specific Performance...................................54
       Section 10.22 Successors.............................................54
       Section 10.23 Survivability..........................................54
       Section 10.24 Waiver.................................................55

SIGNATURE PAGE..............................................................56



<PAGE>



                                INDEX OF EXHIBITS

                   Exhibit               Description

                EXHIBIT A     Articles of Amendment
         ---------------------

                EXHIBIT B     Description of Current Hospital Contracts
         ---------------------

                EXHIBIT C     Subcontract
         ---------------------

                EXHIBIT D     Asset Disposition Memorandum
         ---------------------

                EXHIBIT E     Hospital Consent
         ---------------------

                EXHIBIT F     Legal Opinion - Target's Counsel
         ---------------------

                EXHIBIT G     Disposition of Employee Benefit Plans
         ---------------------

                EXHIBIT H     Legal Opinion - Parent's Counsel
         ---------------------

                EXHIBIT I     Target Lease Amendment
         ---------------------

                EXHIBIT J     Non-Compete Service Areas



<PAGE>


- ------------------------------------------------------------------------------
                               INDEX OF SCHEDULES
- ------------------------------------------------------------------------------
                Schedule               Description

           Schedule 2.10      Allocation of the Merger Consideration
           -------------------

           Schedule 5.2(d)    Target Shares
           -------------------

           Schedule 5.2(f)    Subsidiaries
           -------------------

           Schedule 5.2(g)    Hospital Contracts
           -------------------

           Schedule 5.2(h)    Physician Contracts
           -------------------

           Schedule 5.2(i)    Other Contracts
           -------------------

           Schedule 5.2(j)    Contract Exceptions
           -------------------

           Schedule 5.2(k)    Consents
           -------------------

           Schedule 5.2(n)    Permits
           -------------------

           Schedule 5.2(p)    Financial Statements
           -------------------

           Schedule 5.2(q)    Change Exceptions
           -------------------

           Schedule 5.2(s)    Exceptions to Title
           -------------------

           Schedule 5.2(t)    Material Liabilities
           -------------------

           Schedule 5.2(v)    Permitted Liens
           -------------------

           Schedule 5.2(w)    Litigation and Claims
           -------------------

           Schedule 5.2(x)    Audited Tax Returns
           -------------------

           Schedule 5.2(y)    Insurance Policies
           -------------------

           Schedule 5.2(z)    Employee Benefit Plans
           -------------------

           Schedule 5.2(aa)   Labor Relations
           -------------------

           Schedule 6.13      Company Directors and Officers
           -------------------

           Schedule 7.1(b)    Permitted Activities
           -------------------

           Schedule 10.6(a)   Potential Hospital Contracts



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





<PAGE>





                            INDEX OF DEFINED TERMS


Defined Terms                                                             Page

Act..........................................................................2
Adjusted Net Income.........................................................49
Affiliate...................................................................49
Agreement....................................................................1
Alternate Certified Public Accountants......................................49
Applicable Law..............................................................49
Articles of Amendment........................................................2
Business Day................................................................49
Certificate of Amendment.....................................................2
Certified Public Accountants................................................49
Claim.......................................................................49
Closing Date.................................................................2
Closing Date Balance Sheet...................................................1
Closing Date Cash............................................................1
Closing Date Shares..........................................................3
Code........................................................................49
Commission...................................................................9
Company......................................................................1
Company Indemnitees.........................................................40
Competitor..................................................................38
Confidential Information....................................................50
Consents....................................................................23
Contract....................................................................50
Contract Retention Payment...................................................3
Control.....................................................................49
Conversion...................................................................2
Covenant Not to Compete.....................................................38
Current Hospital Contract....................................................3
Decreasing Adjustment........................................................6
Demand Registration Rights Election..........................................9
Demand Registration Statement................................................9
Demand Shares................................................................9
Document....................................................................50
Effective Date...............................................................2
Emergency Department Services...............................................50
Employee Benefit Plans......................................................28
Environmental Law...........................................................50
ERISA.......................................................................27
ERISA Pension Plans.........................................................28
ERISA Welfare Plans.........................................................27
Final Balance Sheet..........................................................5

<PAGE>

Financial Statements........................................................23
Hospital Consents...........................................................13
Hospital Contracts..........................................................21
Hospitals...................................................................21
HSR Act.....................................................................18
Incentive Earnout Payment....................................................4
Increasing Adjustment........................................................6
Indemnitee..................................................................42
Indemnitor..................................................................42
Insurance Policies..........................................................27
Joint Tax Claim.............................................................47
Law Affecting Creditors' Rights.............................................50
Lawsuit.....................................................................50
Lien........................................................................50
Material Adverse Change.....................................................50
Material of Environmental Concern...........................................51
Measurement Year.............................................................3
Medical Subcontract.........................................................13
Most Recent Balance Sheet...................................................23
National Market System.......................................................3
Non-Compete Period..........................................................51
Non-Disclosure Obligation...................................................39
Non-ERISA Plans.............................................................28
Other Contracts.............................................................22
Parent.......................................................................1
Parent Shares................................................................1
Parent Tax Claim............................................................47
Payment Agent................................................................2
Performance Payment..........................................................4
Permits.....................................................................23
Permitted Liens.............................................................25
Person......................................................................51
Physician Contracts.........................................................21
Physician Stockholder Employment Agreements.................................13
Physicians..................................................................21
Piggyback Registration Rights Election.......................................8
Piggyback Registration Statement.............................................8
Registerable Securities......................................................8
Registration Period..........................................................8
Regulatory Filings..........................................................19
Sale.........................................................................1
Sale Consideration...........................................................1
Securities Act...............................................................3
Service Corporation.........................................................17
Share Value..................................................................3
Stockholder Registration Statement...........................................9

<PAGE>

Stockholder Representative...................................................4
Stockholders.................................................................1
Stockholders Tax Claim......................................................47
Subsidiaries................................................................21
Subsidiary..................................................................51
Target.......................................................................1
Target Common Shares........................................................20
Target Indemnitees..........................................................42
Target Lease Amendment......................................................37
Target Preferred Shares.....................................................20
Target Shares................................................................1
Tax.........................................................................51
Tax Dispute.................................................................47
Tax Return..................................................................51
Transfer.....................................................................7
Wagner Litigation...........................................................14



                                     x
DA961020.121


<PAGE>


                           STOCK PURCHASE AGREEMENT

     This Stock  Purchase  Agreement  (this  "Agreement"),  dated as of April 1,
1996, is among EmCare  Holdings  Inc., a Delaware  corporation  (the  "Parent"),
EmCare, Inc., a Delaware corporation (the "Company"),  Medical Emergency Service
Associates  (MESA),  S.C., an Illinois  professional  service  corporation (such
professional  service  corporation,  as converted to a business  corporation  as
hereinafter provided is herein called the "Target"), and the shareholders of the
Target (the "Stockholders").
                                   RECITALS

      WHEREAS,  the Target has  entered  into the  Hospital  Contracts  with the
Hospitals to provide Emergency Department Services to them;

      WHEREAS, the Target has also employed or engaged the Physicians to provide
medical services in connection with the Hospital Contracts;

     WHEREAS,  the  Company is an  Affiliate  of the Parent,  which  through its
Affiliates provides certain Emergency  Department Services and other health care
related services;

      WHEREAS, the Target desires to convert to a business corporation; and

     WHEREAS,  the Company desires to acquire,  and the  Stockholders  desire to
transfer, all of the capital stock of the Target.

                                    AGREEMENT

     NOW,  THEREFORE,  in  consideration  of  the  foregoing  recitals  and  the
agreements  herein, and other good and valuable  consideration,  the receipt and
sufficiency of which are hereby acknowledged,  and intending to be legally bound
hereby, the parties hereby agree as follows:

                  I. CONVERSION AND PURCHASE AND SALE OF SHARES

     Section  1.1  Purchase  and Sale of the  Shares.  Subject  to the terms and
conditions  hereof  and  on the  basis  of the  representations  and  warranties
hereinafter  set  forth,  the  Stockholders  agree to sell to the Parent and the
Company, and the Parent and the Company agree to purchase from the Stockholders,
all of the shares of capital stock of the Target (the "Target Shares"), free and
clear of all Liens (the "Sale"), for an aggregate purchase price as follows: (a)
$9,305,000 increased,  or decreased if such amount is negative, by the amount of
shareholders'  equity  reflected  on the balance  sheet for the Target as of the
Closing Date  prepared by the Target for closing in  accordance  with  generally
accepted accounting  principles (the "Closing Date Balance Sheet") (the "Closing
Date Cash"), as adjusted by any Increasing Adjustment or Decreasing  Adjustment,
(b) the aggregate  number of shares of the Parent's common stock, par value $.01
per share (the "Parent  Shares")  determined under Section 2.3, (c) the Contract

<PAGE>

Retention Payments,  if any, (d) the Performance  Payments,  if any, and (e) the
Incentive Earnout Payments, if any (collectively, the "Sale Consideration").  To
the extent the consideration  for the Sale is furnished by Parent,  Parent shall
be treated as acquiring a pro rata portion of the Target Shares and contributing
such Target  Shares to the  Company as  additional  paid in surplus  immediately
after consummation of the Sale.

     Section 1.2 Conversion.  Immediately prior to the consummation of the Sale,
the Target  shall  convert into a  corporation  as defined in and subject to the
Illinois  Business   Corporation  Act  (the  "Act")  (the   "Conversion")  in  a
transaction  intended to qualify as a  reorganization  within the  definition of
Section  368(a)(1)(F) of the Code. The Conversion  shall be consummated upon (i)
the filing of the Articles of Amendment in the form of EXHIBIT A (the  "Articles
of Amendment") with the Illinois  Secretary of State, and (ii) the issuance of a
certificate of amendment by the Illinois Secretary of State (the "Certificate of
Amendment").

     Section 1.3 Effective Date. The Sale shall be consummated upon satisfaction
of the conditions set forth herein on April 30, 1996 (the "Closing Date"), to be
effective as of April 1, 1996 (the "Effective Date").

     Section 1.4 No Transfers of Target  Shares.  On the Closing Date, the stock
transfer books of the Target shall be closed and the Target shall not record any
further transfer of Target Shares outstanding prior to the Closing Date.

                      II. PAYMENT FOR THE TARGET SHARES

     Section 2.1 Payment Agent.  The Stockholders  hereby  designate  Mazzeffi &
Company as the payment agent (the "Payment  Agent") under this Agreement.  Prior
to the Closing  Date,  the Target and the  Stockholders  shall cause the Payment
Agent to notify the Parent and the Company in writing of the bank account of the
Payment  Agent to which the  Parent and the  Company  should  make any  payments
pursuant to this Agreement.  For all purposes of this Agreement,  any payment of
money or delivery of Parent Shares or other  consideration  to the Payment Agent
shall be paid  solely  for the  benefit  of,  and  shall be  deemed to have been
properly  delivered to, the  Stockholders and any other Person owning any equity
rights in the Target prior to the Closing Date. The Parent and the Company shall
not have any  responsibility  with respect to any further  distribution  of such
amounts,  Parent Shares, or other consideration to the Stockholders or any other
Person  or  the  proportion  of  any  such  amounts,  Parent  Shares,  or  other
consideration  that the Payment Agent  distributes  to any  Stockholder or other
Person.

     Section 2.2 Delivery of Closing  Date Cash and Closing Date Shares.  On the
Closing  Date,  the Parent shall  deliver to the Payment  Agent the Closing Date
Cash.  Parent shall deliver  one-third  (rounded up or down to the nearest whole
number) of the Closing Date Shares to the Payment Agent on the first anniversary
of the Closing Date,  one-third (rounded up or down to the nearest whole number)
of the Closing Date Shares to the Payment Agent on the second anniversary of the
Closing Date and the balance of the Closing Date Shares on the third anniversary
of the Closing Date. If the number of Closing Date Shares delivered on the first
or second  anniversary  of the Closing Date would  require the Payment  Agent to
make an  unequal  distribution  to the  Stockholders  or  distribute  fractional
shares,  the Payment  Agent may request  that the Parent  deliver to the Payment
Agent additional Closing Date Shares in an amount equal to the number of Closing
Date Shares required to avoid the  distribution of fractional  shares;  provided
that such amount shall not exceed 50 shares. Upon such request, the Parent shall
deliver  such  additional   Closing  Date  Shares.   The  Parent  shall  deliver

<PAGE>

certificates  for the Parent Shares that are part of the Sale  Consideration  in
the names of such  Stockholders  and other Persons and in such  denominations as
the Payment Agent shall designate in writing to the Parent, provided that if the
Payment Agent  designates  any Person other than a Stockholder to receive Parent
Shares,  the Parent  shall not be required to issue such Parent  Shares until it
receives documentation  satisfactory to it that the issuance of Parent Shares to
such Person is consistent with this Agreement and exempt from registration under
the Securities Act of 1933, as amended (the "Securities Act") and the securities
laws of any applicable state or other  jurisdiction.  Moreover,  any such Person
must agree to the  restrictions  on the transfer of such Parent Shares set forth
in this Agreement.

     Section 2.3 Determination of Number of Parent Shares.  The number of Parent
Shares that shall constitute part of the Sale  Consideration  (herein called the
"Closing  Date Shares")  shall be the number  (rounded up or down to the nearest
whole number) of Parent Shares equal to the quotient of (a) $1,500,000,  divided
by (b) the Share  Value.  The term "Share  Value"  shall mean the average of the
closing  prices  of the  Parent  Shares  on the  National  Market  System of the
Automated  Quotation System of the National  Association of Securities  Dealers,
Inc.  (the  "National  Market  System")  for  the 15  trading  days  immediately
preceding  the date of  execution  of this  Agreement  as  published in the Wall
Street Journal (Southwest Edition), absent manifest error.

     Section 2.4 Delivery of Target  Share  Certificates.  On the Closing  Date,
each  Stockholder  shall deliver the  certificates  evidencing his or her Target
Shares to the  Company,  duly  endorsed  for  transfer  or  accompanied  by duly
executed stock powers.
    
     Section  2.5  Contract  Retention  Payments.  If on  the  last  day  of any
Measurement Year each Current Hospital  Contract is still in effect as described
below,  then the  Parent  shall pay the  Payment  Agent  $325,000  (a  "Contract
Retention  Payment") within 30 days after the end of such Measurement  Year. The
term  "Measurement  Year"  shall  mean each of three  consecutive  twelve  month
periods,  the first of which  begins  on the first day of the month  immediately
after the Closing Date. For a Current  Hospital  Contract to be in effect at the
end of a  Measurement  Year for purposes of this Section 2.5, at such time:  (a)
such contract must be in effect or, if not in effect,  such contract  shall have
been  terminated by the Hospital solely as a result of default by the Company or
the Company shall have elected not to renew such  contract upon its  expiration,
(b) no party to such contract or bound by it, other than the Target, shall be in
material default under such contract, and (c) no party to such contract or bound
by it, shall have given notice to terminate  such  contract or possess any right
to terminate  such contract  because of the occurrence or  nonoccurrence  of any
event that  could  give rise to a breach or default by any party  other than the
Target. The term "Current Hospital Contract" shall mean the contracts described
on EXHIBIT B.
     

<PAGE>

     Section  2.6  Performance  Payments.  If the  Adjusted  Net  Income for any
Measurement Year is greater than $1,600,000,  the Parent shall pay a Performance
Payment  to the  Payment  Agent  on or  before  120 days  after  the end of such
Measurement  Year. If a disagreement  exists  concerning the  calculation of the
Adjusted Net Income, however, the Parent shall not be required to pay the amount
of any  corresponding  Performance  Payment  to the  extent  of  the  amount  in
disagreement until resolution of such disagreement  pursuant to Section 2.8. The
term  "Performance  Payment" with respect to a  Measurement  Year shall mean the
lesser of (i) $400,000 and (ii) the amount by which Adjusted Net Income for such
Measurement Year exceeds  $1,600,000.  The Parent shall pay to the Payment Agent
on the seventh  anniversary  of the Closing Date an amount  equal to  $1,200,000
less the aggregate amount of Performance  Payments made pursuant to this Section
2.6.
   
     Section 2.7  Incentive  Earnout  Payments.  If the  Adjusted Net Income for
either the second Measurement Year or the third Measurement Year is greater than
$2,000,000  the Parent shall pay an Incentive  Earnout  Payment on or before 120
days  after the end of each such  Measurement  Year.  If a  disagreement  exists
concerning calculation of the Adjusted Net Income, however, the Parent shall not
be required to pay the amount of any corresponding  Incentive Earnout Payment to
the  extent of the  amount in  disagreement  until  resolution  of such  dispute
according to Section 2.8. The term "Incentive  Earnout  Payment" with respect to
the second  Measurement Year and third Measurement Year shall mean the lesser of
(i)  $1,000,000,  and (ii)  one-half  (1/2) of the amount by which  Adjusted Net
Income for such Measurement Year exceeds $2,000,000.

     Section  2.8  Calculation  of the  Adjusted  Net Income.  The Parent  shall
prepare the calculation of the Adjusted Net Income for each Measurement Year and
then  deliver  such   calculation  to  Mazzeffi  &  Company  (the   "Stockholder
Representative")  within 60 days after the end of such Measurement Year. For all
purposes of this Agreement,  any notice or other communication  delivered to the
Stockholder  Representative  shall be deemed to have been properly  delivered to
the  Stockholders.  Unless the  Stockholder  Representative  notifies the Parent
within 45 days after the  delivery  of such  calculation  that the  Stockholders
disagree with it and specifies in such notice the reasons for such disagreement,
the Stockholders  shall be deemed to have accepted such calculation and it shall
be final and binding on them for all purposes.  The  Stockholder  Representative
shall have  reasonable  access to the books and  records of the Target to enable
the  Stockholder  Representative  to  determine  whether  to  disagree  with the
Parent's calculation.
     
     (a) Disagreement  With the Calculation.  If the Stockholder  Representative
properly  delivers a notice to the  Parent  with  respect  to the  Stockholders'
disagreement  with the Parent's  calculation of the Adjusted Net Income then the
Parent and the Stockholder  Representative  shall promptly begin to negotiate in
good faith in an attempt to resolve such  disagreement.  Any  resolution of such
disagreement that the Parent and the Stockholder  Representative  reach shall be
final  and  binding  on the  Stockholders.  If the  Parent  and the  Stockholder
Representative  fail to resolve  such  disagreement  through  negotiation  on or
before thirty (30) days after the delivery by the Stockholder  Representative of
the Stockholders'  disagreement regarding the calculation of Adjusted Net Income
to the Parent,  then the Parent shall engage the Certified Public Accountants to
render a report that the Parent's calculation of such Adjusted Net Income fairly
presents the Adjusted Net Income for such Measurement Year, provided that if the

<PAGE>

Stockholder  Representative  objects to the  engagement of the Certified  Public
Accountants,  the Parent shall  instead  engage the Alternate  Certified  Public
Accountants,  which shall then be deemed to be the Certified Public  Accountants
for purposes of this Section 2.8. The Parent shall make any  adjustments  to the
Adjusted  Net  Income  calculation  necessary  to enable  the  Certified  Public
Accountants to render such a report,  and such revised  calculation shall be the
calculation on which any  Performance  Payment or Incentive  Earnout  Payment is
based.  Promptly after the Certified Public  Accountants issue their report, the
Parent shall deliver such report to the  Stockholder  Representative  along with
any revised calculation of the Adjusted Net Income for such Measurement Year.

     (b) Fees of the Certified Public Accountants. The Parent shall pay the fees
and expenses of the Certified  Public  Accountants for rendering their report on
the  calculation of the Adjusted Net Income,  provided that if the Parent is not
required to revise its  calculation in connection  with such report,  the Parent
may deduct such fees and  expenses  from any  Performance  Payment or  Incentive
Earnout  Payment  owed.  If the  Parent  does not owe a  Performance  Payment or
Incentive  Earnout  Payment or such fees and expenses  exceed such payment,  the
Parent  may  demand  such  fees and  expenses  or  excess  from the  Stockholder
Representative. For purposes of this Agreement, any demand for payment made upon
the  Stockholder  Representative  shall  be  deemed  to be a  demand  upon  each
Stockholder,  who shall be jointly  and  severally  liable  with  respect to the
amount  of the  demand.  Promptly  after  the  delivery  of such a  demand,  the
Stockholders  shall cause the payment to the Parent of the amount demanded.  The
Stockholder  Representative  in its capacity as the Stockholder  Representative,
however, shall not be personally liable with respect to any such demand.
    
     Section 2.9 Final Balance Sheet. As soon as reasonably  practical but in no
event  later than 90 days after the  Closing  Date,  the Parent  shall cause the
Target to  prepare a balance  sheet  for the  Target as of the  Closing  Date in
accordance  with generally  accepted  accounting  principles  applied on a basis
consistent  with the principles that the Target used to prepare the Closing Date
Balance Sheet (the "Final Balance  Sheet").  Promptly  after  preparation of the
Final  Balance   Sheet,   the  Parent  shall  deliver  it  to  the   Stockholder
Representative. Unless the Stockholder Representative notifies the Parent within
45 days after receipt of the Final Balance Sheet that the Stockholders  disagree
with the Final  Balance  Sheet and specifies in such notice the reasons for such
disagreement,  the  Stockholders  shall be deemed to have  accepted  such  Final
Balance  Sheet and it shall be final and binding on them for all  purposes.  The
Stockholder Representative shall have reasonable access to the books and records
of the Target to enable the Stockholder  Representative  to determine whether to
disagree with the Final Balance Sheet.

          (a) Final  Balance  Sheet  Liabilities.  The Final Balance Sheet shall
     reflect any liability for (i) self-insured retention,  (ii) the purchase of
     a medical  malpractice  insurance  policy  covering an  unlimited  extended
     reporting  period from the Effective  Date,  (iii) any fees and expenses of
     lawyers  and  other  professional  advisers  that  the  Target  engaged  in
     connection  with the Sale,  and (iv) any income taxes of the Target for the
     period  ending on the  Closing  Date.  The Final  Balance  Sheet shall also
     reflect any  liabilities (if any) arising from the conversion of the Target
     to the accrual basis of accounting.
    
          (b)  Disagreement  With the Final Balance  Sheet.  If the  Stockholder
     Representative  timely and  properly  delivers a notice to the Parent  with
     respect to the Stockholders' disagreement with the Final Balance Sheet, the
     Parent and the Stockholder Representative shall promptly begin to negotiate
     in good faith in an attempt to resolve such disagreement. Any resolution of
     such disagreement that the Parent and the Stockholder  Representative reach

<PAGE>

     shall be final and  binding  on the  Stockholders.  If the  Parent  and the
     Stockholder  Representative  fail  to  resolve  such  disagreement  through
     negotiation on or before thirty (30) days after the delivery of such notice
     by the  Stockholder  Representative,  then  the  Parent  shall  engage  the
     Certified  Public  Accountants  to render a report  that the Final  Balance
     Sheet  fairly  presents  the  financial  position  of the  Target as of the
     Closing Date in accordance with generally  accepted  accounting  principles
     applied on a basis  consistent  with the principles that the Target used to
     prepare  the  Most  Recent  Balance  Sheet,  and in  accordance  with  this
     Agreement,  provided that if the Stockholder  Representative objects to the
     engagement of the Certified  Public  Accountants,  the Parent shall instead
     engage the  Alternate  Certified  Public  Accountants,  which shall then be
     deemed to be the Certified Public  Accountants for purposes of this Section
     2.9. The Parent  shall cause the Target to make any  revisions to the Final
     Balance Sheet necessary to enable the Certified  Public  Accountants or the
     Alternate Certified Public Accountants as the case may be, to render such a
     report,  and such revised balance sheet shall be the balance sheet on which
     any Increasing Adjustment or Decreasing Adjustment is based. Promptly after
     the Certified  Public  Accountants  render their  report,  the Parent shall
     deliver it to the Stockholder Representative,  along with the Final Balance
     Sheet, as revised if necessary.

          (c) Fees of the Certified Public Accountants. The Parent shall pay the
     fees and expenses of the  Certified  Public  Accountants  or the  Alternate
     Certified Public Accountants as the case may be, for rendering their report
     on the Final Balance Sheet,  provided that if the Target is not required to
     revise  the  Final  Balance  Sheet in  connection  with  such  report,  the
     Stockholders  shall be obligated  to pay such fees and expenses  within ten
     (10) days after demand by the Parent.
          
          (d)  Adjustment to Closing Date Cash. If the  shareholders'  equity of
     the Target shown on the Final Balance Sheet is more than the  shareholders'
     equity shown on the Closing Date Balance Sheet,  then the Closing Date Cash
     shall be  increased  by the  excess of such  equity  over that shown on the
     Closing Date Balance Sheet (the "Increasing Adjustment").  The Parent shall
     pay and deliver the  Increasing  Adjustment to the Payment  Agent  promptly
     after  the  Final  Balance  Sheet  becomes  final and  binding  under  this
     Agreement.  If the  shareholders'  equity of the Target  shown on the Final
     Balance  Sheet is less than the  shareholders'  equity shown on the Closing
     Date  Balance  Sheet,  then the Closing Date Cash shall be decreased by the
     excess of the equity  shown on the  Closing  Date  Balance  Sheet over such
     equity  (the  "Decreasing  Adjustment").  The  Stockholders,   jointly  and
     severally,  shall be obligated  to pay such  Decreasing  Adjustment  to the
     Parent within ten (10) days after demand by the Parent.
    

     Section 2.10 Allocation of the Sale  Consideration.  The consideration paid
to the Stockholders  pursuant to this Agreement shall be allocated to the Target
Shares and the  Covenant  Not to Compete as set forth on  Schedule  2.10 for all
purposes, including the filing of any Tax returns.

      Section  2.11  Withholding.  When  making any  payments  pursuant  to this
Agreement  or   delivering   the  Parent  Shares  that  are  part  of  the  Sale
Consideration,  the Parent may withhold  such amounts  that any  Applicable  Law

<PAGE>

requires them to withhold. Alternatively, the Parent may enter into an agreement
with the Payment Agent under which the Payment Agent shall properly withhold and
report any such amounts on behalf of the Parent.

      Section  2.12  Restriction  on the  Transfer  of the  Parent  Shares.  The
Stockholders  may not  directly or  indirectly  (including  by operation of law)
assign, bequeath,  divide,  encumber,  hypothecate,  mortgage,  pledge, sell, or
otherwise  transfer or dispose of  (collectively,  "Transfer") any of the Parent
Shares  delivered to them  pursuant to this  Agreement  unless such  Transfer is
pursuant to an effective registration statement under the Securities Act and the
securities laws of any applicable state or other jurisdiction,  or such Transfer
is exempt from registration under such laws. If a Stockholder dies, however, the
administrator  or executor of such  Stockholder's  estate may take possession of
such Stockholder's  Parent Shares and then distribute them to such Stockholder's
legatees or heirs,  provided that such  distribution is exempt from registration
under such securities laws. Each stock  certificate  representing  Parent Shares
delivered to the  Stockholders  pursuant to this  Agreement  and any  subsequent
stock  certificates  deriving  from such  certificates  shall bear the following
legends:

                 THE ISSUANCE OF THE SHARES OF COMMON STOCK  REPRESENTED
            BY  THIS  CERTIFICATE  HAS NOT  BEEN  REGISTERED  UNDER  THE
            SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),
            OR THE SECURITIES  LAWS OF ANY STATE OR OTHER  JURISDICTION.
            THESE SHARES MAY NOT BE TRANSFERRED  UNLESS SUCH TRANSFER IS
            REGISTERED  UNDER THE SECURITIES ACT AND THE SECURITIES LAWS
            OF ANY  APPLICABLE  STATE  OR  OTHER  JURISDICTION,  OR SUCH
            TRANSFER IS EXEMPT FROM REGISTRATION UNDER SUCH LAWS.

                 THE TRANSFER OF THESE SHARES IS ALSO RESTRICTED UNDER A
            STOCK PURCHASE  AGREEMENT,  DATED AS OF APRIL 1, 1996, AMONG
            EMCARE HOLDINGS INC. (THE  "COMPANY"),  EMCARE  ACQUISITION,
            INC., MEDICAL EMERGENCY SERVICE ASSOCIATES (MESA), S.C., AND
            ITS STOCKHOLDERS. A COPY OF THIS AGREEMENT IS ON FILE AT THE
            COMPANY'S PRINCIPAL OFFICE.

                IN ACCORDANCE  WITH THE PROVISIONS OF SECTION 151(f) OF
           THE  DELAWARE  GENERAL  CORPORATION  LAW,  THE COMPANY  WILL
           FURNISH  WITHOUT CHARGE TO EACH  STOCKHOLDER WHO SO REQUESTS
           THE  POWERS,   DESIGNATIONS,   PREFERENCES   AND   RELATIVE,
           PARTICIPATING,  OPTIONAL,  OR OTHER  SPECIAL  RIGHTS OF EACH
           CLASS OF STOCK OR  SERIES  THEREOF  OF THE  COMPANY  AND THE
           QUALIFICATIONS,   LIMITATIONS,   OR   RESTRICTIONS  OF  SUCH
           PREFERENCES AND/OR RIGHTS.

      Section 2.13      Lack of Marketability.  The Stockholders acknowledge
that:

            (a) No Registration.  Based upon the  representations and warranties
      of the Target and each Stockholder set forth in this Agreement, the Parent
      has not registered the issuance of the Parent Shares delivered pursuant to
      this Agreement  under:  (i) the  Securities  Act, based upon the exemption
      from  registration  set forth in Section 4(2) of such act and Regulation D
      promulgated  under such act,  (ii) the  Illinois  Securities  Law of 1953,
      based upon the  exemption  set forth in Section 4G of such act,  (iii) the
      Delaware  Securities  Act,  based upon the  exemption set forth in Section
      7309(b)(9) of such act, or (iv) the securities  laws of any other state or
      jurisdiction.
<PAGE>

            (b) No Transfer.  The Stockholders must hold the Closing Date Shares
      indefinitely  until the  Transfer of such shares is  registered  under the
      Securities  Act and the securities  laws of any applicable  state or other
      jurisdiction,  or such  Transfer  is exempt from  registration  under such
      laws.

            (c) Limited Registration Rights. Except as set forth in ARTICLE III,
      the Parent is under no obligation to register any  Stockholder's  transfer
      of his or her Parent  Shares under the  Securities  Act or the  securities
      laws of any state or other jurisdiction.


                           III. REGISTRATION RIGHTS

      Section 3.1 Piggyback  Registration Rights. If within the period beginning
on the  Closing  Date and  ending on the day  immediately  preceding  the second
anniversary of the Closing Date (the "Registration  Period"), the Parent files a
registration  statement under the Securities Act to register the issuance of any
Parent  Shares or transfer of any Parent Shares by any existing  shareholder  of
the Parent, each Stockholder may elect to have his or her transfer of the Parent
Shares  delivered to him or her pursuant to this Agreement and any shares issued
in  exchange or  replacement  of such shares  (collectively,  the  "Registerable
Securities") included in such registration statement as provided in this ARTICLE
III  provided  that this  election  shall be  inapplicable  with  respect to any
registration  statement  filed in  connection  with any  merger or  acquisition,
exchange  offer,  employee  benefit plan or sale of shares solely by the Parent.
Moreover,  this election shall be inapplicable to any  Registerable  Securities,
the transfer or contemplated  transfer of which has been previously  included by
the Parent in an effective  registration  statement under the Securities Act, or
the transfer of which may be made at such time under the safe harbor  provisions
of Rule 144 under the Securities Act.

            (a) Piggyback Registration Rights Election. If the Parent desires to
      file a registration  statement described in this Section 3.1 (a "Piggyback
      Registration  Statement") during the Registration Period, the Parent shall
      notify the  Stockholder  Representative  of its  intention  to file such a
      registration statement at least 20 days before such filing. As promptly as
      possible,  but in no event  later than 15 days  after the Parent  delivers
      such a notification  to the  Stockholder  Representative,  the Stockholder
      Representative  may deliver a written notice to the Parent  demanding that
      the  Parent  include  the  transfer  of  each  Stockholder's  Registerable
      Securities  described  in  such  notice  in  the  Piggyback   Registration
      Statement (the "Piggyback Registration Rights Election").

            (b) Underwriter's  Cutback. If the Piggyback  Registration Statement
      involves an underwritten  offering and the  underwriters  believe that the
      Stockholders'  requested  inclusion  of  Registerable  Securities  in  the
      Piggyback  Registration  Statement  along with any other Parent  Shares or
      other securities could adversely affect the success of the offering,  then
      the  number of such  Registerable  Securities  shall be  decreased  to the
      extent that the  underwriters  deem necessary or advisable  given the then
      current market conditions.  Any such decrease shall decrease each electing
      Stockholder's  number of Registerable  Securities that he or she requested
      the Parent to include in the  Piggyback  Registration  Statement  on a pro
      rata basis.
<PAGE>

      Section  3.2  Demand   Registration   Rights.   At  any  time  during  the
Registration  Period  after the  first  anniversary  of the  Closing  Date,  the
Stockholder  Representative may deliver one notice to the Parent, with a copy to
each  Stockholder,  demanding  that the Parent  register  the  transfer  of each
Stockholder's  Registerable  Securities  described  in such notice (the  "Demand
Registration  Rights  Election").  The term "Demand  Shares" means the number of
Registerable   Securities  held  by  the  Stockholders  minus  any  Registerable
Securities which may be transferred under the safe harbor provisions of Rule 144
of the Securities Act, calculated and determined as of the date of filing of the
Demand  Registration  Statement.  The Demand  Registration  Rights Election must
request the  registration of the transfer of Parent Shares in an amount equal to
at least 90% of the total number of Closing  Date Shares  delivered on the first
anniversary  of  the  Closing  Date.  A  Demand   Registration  Rights  Election
requesting  the  registration  of the  transfer  of a  lesser  number  shall  be
ineffective.

            (a) Demand Registration Statement. Promptly after receiving a Demand
      Registration  Rights Election,  the Parent shall prepare and file with the
      Securities  and Exchange  Commission  (the  "Commission")  a  registration
      statement  registering the transfer of such  Registerable  Securities (the
      "Demand  Registration  Statement"  and  collectively  with  any  Piggyback
      Registration Statements, a "Stockholder Registration Statement") and shall
      use  reasonable  efforts to cause the  Commission  to  declare  the Demand
      Registration  Statement  effective.  Unless the Parent otherwise consents,
      the  distribution of the  Registerable  Securities  pursuant to the Demand
      Registration  Statement  shall  be  effected  through  investment  bankers
      selected by the Parent. The Parent shall maintain the effectiveness of the
      Demand Registration Statement until the completion of the offering and any
      subsequent period required under the Securities Act.

            (b)   Delay   in   Filing   the   Demand   Registration   Statement.
      Notwithstanding  anything to the contrary in this Section 3.2 however, the
      Parent may delay filing the Demand  Registration  Statement or request the
      Commission not to declare such registration statement effective if (i) the
      Parent has completed an underwritten offering of its securities within the
      preceding four months, or (ii) the Parent's board of directors  determines
      in the exercise of its reasonable and good faith  judgment,  on the advice
      of an  investment  banker  selected  by the  Parent,  that  filing  such a
      registration   statement  would  adversely  interfere  with  the  Parent's
      offering of securities or  acquisition of another  company.  If the Parent
      delays filing a Demand  Registration  Statement because the Parent's board
      of directors makes the foregoing determination,  the Parent shall promptly
      give the Stockholder  Representative  written notice of such determination
      along with a written statement of the general reasons for the postponement
      and the approximate  period of the delay. The Parent shall file or request
      the  Commission  to declare  effective  the  delayed  Demand  Registration
      Statement as soon as the reason for the delay no longer exists.

            (c) Ineffective  Demand  Registration  Statement.  If the Commission
      fails to  declare a Demand  Registration  Statement  effective  other than
      because  of the  Stockholder  Representative's  request to  withdraw  such
      registration  statement  or an issue  involving  a  Stockholder,  then the
      Demand   Registration   Rights   Election  with  respect  to  such  Demand
      Registration  Statement  shall  not count as the one  demand  registration
      right of the Stockholders under this Agreement.

      Section 3.3  Preparation  of a Stockholder  Registration  Statement.  Each
Stockholder electing to transfer his or her Registerable  Securities pursuant to
a  Stockholder  Registration  Statement  shall provide such  information  to the
Parent  in  connection   with  the  Parent's   preparation  of  the  Stockholder
Registration  Statement and enter into such  customary  agreements in connection
with the  Stockholder  Registration  Statement  as the Parent may  request.  The
Parent shall deliver a copy of each Stockholder  Registration  Statement and any
amendments or  supplements  to such  Stockholder  Registration  Statement to the

<PAGE>

Stockholder  Representative  before filing them with the  Commission and provide
the Stockholders a reasonable opportunity to comment on such documents.

      Section  3.4  Underwritten  Offerings.   If  a  Stockholder   Registration
Statement  involves an underwritten  offering,  the Stockholders must accept the
terms of the underwriting as agreed upon between the Parent and the underwriters
that  the  Parent  has  selected  and  enter  into the  underwriting  agreement;
provided,  that, in the case of a Demand  Registration  Statement,  the terms of
such  underwriting  agreement  are  customary.  Each  Stockholder  shall also be
subject  to  any  Transfer  restrictions  or  conditions  with  respect  to  the
Registerable  Securities that he or she possesses that the underwriters consider
necessary or advisable in such underwriters'  business judgment. If requested by
the  underwriters,  the Parent shall also enter into the underwriting  agreement
upon customary terms and conditions.

      Section  3.5 Blue Sky  Registrations.  In  connection  with a  Stockholder
Registration Statement,  the Parent shall use reasonable efforts to register and
qualify  the  transfer  of the  respective  Registerable  Securities  under  the
securities  laws of any states or other  jurisdictions  within  the  continental
United States of America that the Stockholder  Representative  designates in the
Piggyback  Registration  Rights  Election  or  the  Demand  Registration  Rights
Election,  respectively,  provided  that the  Parent  shall not be  required  to
register or qualify to transact  business in any such state or  jurisdiction  in
connection  with any such  registration  or  qualification  or subject itself to
taxation by any such state or jurisdiction.

      Section 3.6 Expenses.  The Parent shall pay all costs,  fees, and expenses
incurred  in  connection  with  the  preparation  and  filing  of a  Stockholder
Registration Statement,  provided that each Stockholder shall pay his or her own
accounting  and legal  fees and  expenses  and shall bear any  underwriter's  or
broker's  discount or  commission  and any transfer  Taxes  attributable  to the
transfer of his or her Registerable Securities.

     Section 3.7 Indemnification.  With respect to each Stockholder Registration
Statement:

            (a)  Indemnification  by the  Stockholders.  Each Stockholder  shall
      indemnify and hold harmless the Parent,  each of the Parent's  Affiliates,
      agents,  directors,  employees, and officers, each Person who controls the
      Parent within the meaning of the Securities Act, and each  underwriter and
      investment  banker  that the  Parent  has  engaged  in  connection  with a
      Stockholder  Registration  Statement  against any Claims made  against the
      Parent or any such Person with respect to any untrue  statement or alleged
      material  untrue  statement  concerning  such  Stockholder  contained in a
      Stockholder  Registration  Statement or any  omission or alleged  material
      omission  from  a  Stockholder   Registration  Statement  concerning  such
      Stockholder of a material fact required to be stated in such  registration
      statement  or  necessary  to make  the  statements  in  such  registration
      statement not misleading,  provided that the  Stockholders  shall not have
      any indemnity  obligation  for Claims  directly or  indirectly  related or
      arising with respect to any such untrue statement, alleged material untrue
      statement,  omission,  or alleged material  omission unless either made or
      omitted in reasonable reliance upon written  information  furnished to the
      Parent  by a  Stockholder  (including  the  description  of  the  plan  of
      distribution  provided  for  inclusion  in such  Stockholder  Registration
      Statement).  For purposes of this Section 3.8, a Stockholder  Registration
      Statement shall include any preliminary or final prospectus contained in a
      Stockholder  Registration Statement and any amendments or supplements to a
      Stockholder  Registration  Statement.  If any Stockholder becomes aware of
      any  material  misstatement  or  omission  in a  Stockholder  Registration
      Statement,  such Stockholder shall  immediately  notify the Parent of such
      misstatement  or omission.  The indemnity  obligation of each  Stockholder
      under this  Section  3.8(a)  shall be  limited  to an amount  equal to the
      proceeds  that  such  Stockholder  received  from  the  sale of his or her
      Registerable   Securities   pursuant   to   the   respective   Stockholder
      Registration Statement.
<PAGE>

            (b)  Indemnification  by the Parent.  The Parent shall indemnify and
      hold harmless each  Stockholder and other Person  registering the transfer
      of Registerable Securities pursuant to this ARTICLE III against any Claims
      made against  such Person with respect to any untrue  statement or alleged
      material  untrue  statement   contained  in  a  Stockholder   Registration
      Statement, or any omission or alleged material omission from a Stockholder
      Registration  Statement of a material  fact  required to be stated in such
      registration  statement  or  necessary  to  make  the  statements  in such
      registration statement not misleading,  provided that the Parent shall not
      have any indemnity obligation for Claims directly or indirectly related or
      arising  with respect to any untrue  statement,  alleged  material  untrue
      statement,  omission,  or  alleged  material  omission  made or omitted in
      reliance  upon  written  information  furnished  to the  Parent  by such a
      Stockholder  or other Person  (including  the  description  of the plan of
      distribution  provided  for  inclusion  in such  Stockholder  Registration
      Statement).  If the Parent becomes aware of any material  misstatement  or
      omission with respect to a Stockholder  Registration Statement, the Parent
      shall   immediately   notify  the  Stockholder   Representative   of  such
      misstatement or omission.

            (c)   Other Agreements.  This indemnification obligation shall be
      in addition to any customary agreements required under Section 3.4.

      Section  3.8  Copies of the  Prospectus.  The  Parent  shall  provide  the
Stockholder  Representative  with a  reasonable  number  of  copies  of (a)  the
preliminary prospectus with respect to any Stockholder  Registration  Statement,
if the  Parent  and the  Stockholder  Representative  agree to  distribute  such
preliminary prospectus, (b) the final prospectus with respect to any Stockholder
Registration Statement, and (c) the amendments and supplements to any such final
prospectus, if any.

      Section 3.9 Legal Opinions and Comfort Letters.  If in connection with any
Stockholder Registration Statement the Parent obtains a legal opinion or comfort
letter for the benefit of any underwriters  participating in the distribution of
the Registerable  Securities,  the Parent shall use reasonable  efforts to cause
the law firm or  certified  public  accounting  firm  rendering  such opinion or
comfort  letter,  respectively,  to  deliver  copies of such  opinion or comfort
letter to the  Stockholder  Representative  and permit the  Stockholders to rely
upon them.

      Section 3.10 Registration Rights Nontransferable.  The registration rights
set forth in this  ARTICLE III are personal to each  Stockholder  and his or her
heirs, legal  representative or court ordered transferee and  nontransferable to
any other party.


                                 IV. CLOSING

      Section 4.1  Consummation  of the  Conversion  and Sale.  The Target shall
properly execute and file the Articles of Amendment with the Illinois  Secretary
of State and shall pay any filing fees  required  with respect to such filing on
or before the Closing Date,  provided that the  conditions to the Sale set forth
in Sections  4.2 and 4.3 have been  satisfied or waived.  Immediately  after the
consummation of the  Conversion,  the delivery and payment for the Target Shares
shall take place as set forth herein, provided that: (i) the Conversion has been
consummated  and (ii) the  conditions  to the Sale set forth in Sections 4.2 and
4.3 have been  satisfied or waived.  The closing of the Sale shall occur on such
day at the offices of Gibson,  Dunn & Crutcher,  1717 Main  Street,  Suite 5400,
Dallas,  Texas 75201,  commencing at 10:00 a.m., or at such other place and time
as the parties to this Agreement shall agree.

      Section 4.2  Conditions  to the Parent's and the  Company's  Obligation to
Consummate the Sale. The Parent's and the Company's obligation to consummate the
Sale shall be subject to the satisfaction on or prior to the Closing Date of the
following conditions, which the Parent and the Company may waive:
<PAGE>

          (a) Representations and Warranties. The representations and warranties
     of the Target or any  Stockholder  set forth in this  Agreement  shall have
     been correct and  complete in all  material  aspects as of the date of this
     Agreement  and shall be correct and complete in all material  aspects as of
     the Closing  Date,  other than the  representation  and warranty in Section
     5.2(f) and (g) to the extent  affected  by the  transactions  described  on
     EXHIBIT D, as though made as of such time.

          (b) Covenants.  The Target and each  Stockholder  shall have performed
     all agreements,  covenants, and obligations that such Person is required to
     perform under this Agreement prior to the Closing Date.

          (c)  Medical   Services   Subcontract   and  Assignment  of  Physician
     Contracts.  The Parent and the  Company  shall have  received  an  original
     subcontract  in the  form of  EXHIBIT  C to this  Agreement,  executed  and
     delivered by the Service  Corporation,  under which the Service Corporation
     shall have  agreed to  perform  all  medical  services  under the  Hospital
     Contracts  (the  "Medical  Subcontract").  The Parent and the Company shall
     have also received an original assignment, in form and substance acceptable
     to them, executed and delivered by the Target and the Service  Corporation,
     under  which the Target  assigns  the  Physician  Contracts  to the Service
     Corporation.

          (d) Transfer of Miscellaneous Assets. The Parent and the Company shall
     have  received  evidence  satisfactory  to them that certain  assets of the
     Target  shall have been  disposed of in  accordance  with EXHIBIT D to this
     Agreement.

          (e) Closing Certificate. The Target shall have delivered to the Parent
     and  the  Company  a  certificate,  signed  by an  officer  of  the  Target
     acceptable to the Parent and the Company,  confirming the  satisfaction  of
     the conditions set forth in Sections 4.2(a) and (b).

          (f)  Consents.  The Target shall have  received  and  delivered to the
     Parent and the Company all Consents, in form and substance  satisfactory to
     them,  and shall have given all notices  required to be given to any Person
     prior to the  consummation  of the  Sale,  including  a  consent  from each
     Hospital,  in  substantially  the  form of  EXHIBIT  E  (collectively,  the
     "Hospital Consents"). The Parent and the Company shall also have received a
     consent to the Sale and this  Agreement  from Texas  Commerce Bank National
     Association  under its loan  agreement  with the Parent and  certain of the
     Parent's subsidiaries.

          (g)  Addendum to  Physician  Stockholder  Employment  Agreements.  The
     Target  shall have  delivered to the Parent,  the Company,  and the Service
     Corporation  an addendum to the  existing  employment  agreements  with the
     Stockholders (the "Physician  Stockholder  Employment  Agreements") in form
     and  substance  satisfactory  to  the  Parent,  the  Company,  the  Service
     Corporation and the Stockholders duly executed by each Stockholder.

          (h) Target Lease  Amendment.  The Target  shall have  delivered to the
     Parent and the Company a copy of the Target Lease Amendment executed by the
     lessor.

          (i) No Material  Adverse  Change.  The Target shall not have undergone
     any Material  Adverse Change since the date of execution of this Agreement.

          (j) Legal  Opinion.  The Parent and the Company  shall have received a
     legal opinion  opining as to the matters set forth in EXHIBIT F from Burke,
     Warren & MacKay, P.C., or such other law firm that is acceptable to them.

          (k) Target Secretary's Certificate. The Target shall have delivered to
     the Parent and the Company a Secretary's Certificate, in form and substance
     satisfactory to them, which shall include:
               (i) Charter. A copy of the Target's articles of incorporation and

<PAGE>

          either the  Certificate  of  Amendment or a  file-stamped  copy of the
          Articles of  Amendment,  each  certified by the Illinois  Secretary of
          State not more than five days before the Closing Date.

               (ii) By-laws. A copy of the Target's by-laws.

               (iii) Good Standing Certificate.  A certificate from the Illinois
          Secretary  of  State,  dated as of the  Closing  Date or a  reasonable
          number  of days  before  such  date,  stating  that the  Target  is in
          existence and good standing under the laws of the State of Illinois.

               (iv)  Resolutions.  A copy of the  resolutions  that the Target's
          board of directors  adopted  approving the  execution,  delivery,  and
          performance of this Agreement.

               (v) Incumbency  Certificate.  An incumbency  certificate  setting
          forth the names,  offices, and signatures of the Target's officers who
          execute any documents on behalf of the Target in  connection  with the
          Sale.

            (l) Wagner  Litigation.  The Target and the Stockholders  shall have
      delivered evidence satisfactory to the Parent and the Company that any and
      all  liability  of the Target  arising out of or in any way related to the
      litigation   described  and  defined  in  Schedule   5.2(y)  (the  "Wagner
      Litigation") has been discharged or released in full.

            (m) Release of Kirchoff  Guaranty.  The Target and the  Stockholders
      shall have delivered  evidence  satisfactory to the Parent and the Company
      that as of the Closing Date the Target is not  obligated  with respect to,
      and its assets are not subject  to, any  obligations  of Kirchoff  Limited
      Partnership.

            (n) Due Diligence.  The  investigation  of the Target by the Parent,
      the Company, and their advisors and representatives  shall not have caused
      them to  become  aware  of any  facts  or  circumstances  relating  to the
      Target's assets, business, cash flows, financial condition, operations, or
      prospects  that the Parent and the Company  believe make their  proceeding
      with the consummation of the Sale inadvisable.

            (o) Books and Records.  The Target and the  Stockholders  shall have
      delivered  to the  Parent  and the  Company  the books and  records of the
      Target, including the minute books, stock books and seal of the Target.

            (p)   Resignations.  The Target and the Stockholders shall have
      delivered the written resignations of all directors and officers of the 
      Target.

            (q) Employee Benefit Plans.  The Target and the  Stockholders  shall
      have delivered  evidence  satisfactory  to the Parent and the Company that
      the  Employee  Benefit  Plans  have been  frozen  with  respect  to future
      contributions. The Parent and the Company intend to further dispose of the
      Employee Benefit Plans as set forth on EXHIBIT G.

            (r)   Former Stockholder Obligations.  The Target and the
      Stockholders shall have delivered evidence satisfactory to the Parent and 
      the Company that the Target has satisfied in full in cash all obligations
      owed to former stockholders of the Target.

            (s) Agreement  with Payment Agent.  The Target and the  Stockholders
      shall  have  delivered  an  agreement   among  the  Payment   Agent,   the
      Stockholders,  the Parent and the  Company  pursuant  to which the Payment
      Agent and the Stockholders shall agree that the Payment Agent will hold in
      escrow and will not  distribute to the  Stockholders  any Parent Shares or
      any Sale Consideration delivered after the Closing Date until such time as
      a complete  release  shall have been  delivered by Dr.  Michael  Victor in
      connection  with  the  matter  described  on  Section  5.2(w)  to the sole

<PAGE>

      satisfaction  of the  Parent  and the  Company,  or such other time as the
      Parent and the Company may agree.

            (t) Other. The Target and the  Stockholders  shall have delivered to
      the  Parent  and the  Company  such  other  certificates,  documents,  and
      instruments  as the  Parent  or the  Company  may  reasonably  request  in
      connection with the Sale.

      Section 4.3 Conditions to the Target's and the Stockholders' Obligation to
Consummate the Sale. The Target's and the Stockholders' obligation to consummate
the Sale shall be subject to the satisfaction on or prior to the Closing Date of
the following conditions, which the Target may waive:

          (a) Representations and Warranties. The representations and warranties
     of the Parent and the Company set forth in this  Agreement  shall have been
     correct and complete as of the date of this  Agreement and shall be correct
     and complete as of the Closing Date as though made as of such time.

          (b)  Covenants.  The Parent and the Company  shall have  performed all
     agreements,  covenants,  and obligations  that they are required to perform
     under this Agreement prior to the Closing Date.

          (c)  Closing  Certificate.  The  Parent  and the  Company  shall  have
     delivered to the Target and the  Stockholders a  certificate,  signed by an
     officer  of  each  of  them  acceptable  to  the  Target,   confirming  the
     satisfaction of the conditions set forth in Sections 4.3(a) and (b).

          (d) No Material  Adverse  Change.  The Parent shall not have undergone
     any Material Adverse Change since the date of execution of this Agreement.

          (e) Legal Opinion. The Target and the Stockholders shall have received
     a legal  opinion  opining  as to the  matters  set forth in  EXHIBIT H from
     Gibson, Dunn & Crutcher, or such other law firm that is acceptable to them.

          (f) Parent Secretary's Certificate. The Parent shall have delivered to
     the Target and the  Stockholders  a  Secretary's  Certificate,  in form and
     substance  satisfactory  to the Target and the  Stockholders,  which  shall
     include:
               (i) Charter. A copy of the Parent's  certificate of incorporation
          certified by the  Delaware  Secretary of State not more than five days
          before the Closing Date.
                 
               (ii) By-laws. A copy of the Parent's by-laws.

               (iii) Good Standing Certificate. A long-form certificate from the
          Delaware  Secretary  of  State,  dated  as of the  Closing  Date  or a
          reasonable number of days before such date, stating that the Parent is
          in existence and good standing under the laws of the State of Delaware
          and describing  each document  comprising the Parent's  certificate of
          incorporation.

               (iv)  Resolutions.  A copy of the  resolutions  that the Parent's
          board of directors adopted approving the Parent's execution, delivery,
          and performance of this Agreement.

               (v) Incumbency  Certificate.  An incumbency  certificate  setting
          forth the names,  offices, and signatures of the Parent's officers who
          execute any documents on behalf of the Parent in  connection  with the
          Sale.
<PAGE>

          (g) Company Secretary's Certificate.  The Company shall have delivered
     to the Target and the Stockholders a Secretary's  Certificate,  in form and
     substance  satisfactory  to the Target and the  Stockholders,  which  shall
     include:

                    (i)  Charter.  A  copy  of  the  Company's   certificate  of
               incorporation  certified by the  Delaware  Secretary of State not
               more than five days before the Closing Date.

                    (ii)  By-laws.  A copy of the Company's by-laws.

                    (iii) Good  Standing  Certificate.  A long-form  certificate
               from the  Delaware  Secretary  of State,  dated as of the Closing
               Date or a  reasonable  number of days before  such date,  stating
               that the Company is in existence and good standing under the laws
               of the State of Delaware and describing each document  comprising
               the Company's certificate of incorporation.

                    (iv)  Resolutions.  A  copy  of  the  resolutions  that  the
               Company's board of directors  adopted  approving the Sale and the
               Company's execution, delivery, and performance of this Agreement.

                    (v)  Incumbency   Certificate.   An  incumbency  certificate
               setting forth the names, offices, and signatures of the Company's
               officers  who execute any  documents  on behalf of the Company in
               connection with the Sale.

            (h) Service Corporation Secretary's Certificate.  MESA EmCare, S.C.,
      an Illinois service corporation (the "Service Corporation"), shall deliver
      to the Target and the Stockholders a Secretary's Certificate,  in form and
      substance  satisfactory  to the Target and the  Stockholders,  which shall
      include:

                    (i) Charter. A copy of the Service Corporation's articles of
               incorporation  certified by the  Illinois  Secretary of State not
               more than five days before the Closing Date.

                    (ii) By-laws. A copy of the Service Corporation's by- laws.

                    (iii) Good  Standing  Certificate.  A  certificate  from the
               Illinois  Secretary  of  State,  as  of  the  Closing  Date  or a
               reasonable  number of days  before  such date,  stating  that the
               Service  Corporation  is in existence and in good standing  under
               the laws of the State of Illinois.

                    (iv) Resolutions. A copy of the resolutions that the Service
               Corporation's board of directors adopted approving the execution,
               delivery  and  performance  of the  Medical  Subcontract  and the
               addendums to the Physician Stockholder  Employment Agreements and
               the Service Corporation's  performance of the Physician Contracts
               and the medical services under the Hospital Contracts.

                    (v)  Incumbency   Certificate.   An  incumbency  certificate
               setting forth the names,  offices,  and signatures of the Service
               Corporation's  officers who execute any addendum to any Physician
               Stockholder  Employment Agreement or other documents on behalf of
               the Service Corporation in connection with the Sale.

            (i) Addendum to Physician  Stockholder  Employment  Agreements.  The
      Service  Corporation  shall have delivered to each Stockholder an addendum
      to the Physician  Stockholder  Employment  Agreement for such Stockholder,
      executed by the Service Corporation.

            (j) Other.  The Parent and the Company  shall have  delivered to the
      Target  and the  Stockholders  such  other  certificates,  documents,  and
      instruments  as the Target may reasonably  request in connection  with the
      Sale.

<PAGE>

                      V. REPRESENTATIONS AND WARRANTIES

      Section 5.1  Representations and Warranties of the Parent and the Company.
The Parent and the Company, jointly and severally,  represent and warrant, as of
the date of execution hereof, to the Target and the Stockholders as follows:

          (a)  Organization  of the  Parent.  The Parent is a  corporation  duly
     organized,  validly  existing,  and in good standing  under the laws of the
     State of Delaware.

          (b)  Organization  of the Company.  The Company is a corporation  duly
     organized,  validly  existing,  and in good standing  under the laws of the
     State of Delaware.

          (c) Power and  Authority  of the  Parent.  The Parent  possesses  full
     corporate  power and  authority  to  execute,  deliver,  and  perform  this
     Agreement and all transactions  contemplated  herein to be performed by the
     Parent, without obtaining any approval,  authorization,  consent, or waiver
     or giving any notice, other than the approval of its board of directors and
     of Texas Commerce Bank National  Association  under its loan agreement with
     the Parent and certain of the Parent's subsidiaries,  which it has properly
     obtained.  The Parent also  possesses the corporate  power and authority to
     own its properties and carry on its business as presently conducted.

          (d) Power and Authority of the Company. The Company possesses the full
     corporate  power and  authority  to  execute,  deliver,  and  perform  this
     Agreement and all transactions  contemplated  herein to be performed by the
     Company, without obtaining any approval, authorization,  consent, or waiver
     or giving any notice, other than the approval of its board of directors and
     sole stockholder and of Texas Commerce Bank National  Association under its
     loan  agreement  with the Parent and certain of the Parent's  subsidiaries,
     which it has  properly  obtained.  The  Company  was  formed to effect  the
     acquisition of the Target,  does not own any material  assets,  and has not
     conducted any significant business.

          (e)  Execution,  Delivery,  and  Enforceability.  The  Parent  and the
     Company have each duly authorized,  executed, and delivered this Agreement,
     and this Agreement  constitutes a valid,  legal, and binding  obligation of
     each of  them,  enforceable  against  each of them in  accordance  with its
     terms, subject to any Law Affecting Creditors' Rights.

          (f) Consents. There are no approvals, consents, or notices required to
     be obtained or given by the Parent or the Company  before  consummation  of
     the Sale,  other  than any  immaterial  approvals,  consents,  and  notices
     customarily  obtained after  consummation  of  transactions  similar to the
     Sale,  except for the consent of Texas  Commerce Bank National  Association
     under its loan  agreement  with the  Parent  and  certain  of the  Parent's
     subsidiaries. Moreover, the execution and delivery of this Agreement by the
     Parent and the  Company and their  consummation  of the Sale do not require
     any approval, consent, filing, registration, or other action by or with any
     governmental  entity.  For purposes of the  representations  and warranties
     contained  in this Section  5.1,  however,  the Parent and the Company have
     based  their   determination   that  no  filing  is   required   under  the
     Hart-Scott-Rodino  Antitrust Improvements Act of 1976, as amended (the "HSR
     Act") in part upon the  representation  and  warranty of the Target and the
     Stockholders  set  forth  in this  Agreement  concerning  the  value of the
     Target's assets and the Target's net sales.

          (g)  Conflicts.  Subject  to the  receipt  of the  consent  from Texas
     Commerce Bank National Association,  neither the Parent's nor the Company's
     execution,  delivery,  or performance of this Agreement or the transactions
     contemplated  herein to be  performed by the Company  will  conflict  with,
     constitute a breach or violation of, result in a Lien against, or give rise
     to any default or right of acceleration,  cancellation, or termination with

<PAGE>

     respect to any  Document  or any  Applicable  Law to which such Person is a
     party or by which any of such Person's assets are bound (or give rise to an
     event that with  notice,  lapse of time,  or both,  would  result in such a
     conflict,  breach,  violation,  Lien, default, or right), including but not
     limited to the certificate of  incorporation  and the by-laws of the Parent
     and the certificate of incorporation and the by-laws of the Company.

          (h)  Permits.   The  Parent  and  the  Company  possess  all  material
     authorizations,  certificates,  franchises, licenses, and permits necessary
     for the lawful conduct of their business.

          (i) Regulatory Filings. The financial statements and other information
     set forth in the Parent's  Registration  Statement No. 33-81830 as declared
     effective  by the  Commission,  and all other  filings  by Parent  with the
     Commission (the "Regulatory Filings") are accurate in all material respects
     and do not contain any untrue statements of material facts or omit to state
     any material facts required to be stated in the Regulatory Filings that are
     necessary to make the statements in the Regulatory Filings not misleading.

          (j) Issuance of the Parent Shares.  Upon the Parent's  delivery to the
     Payment Agent in accordance with this Agreement of the Closing Date Shares,
     such  Closing  Date  Shares  shall  be  validly  issued,  fully  paid,  and
     nonassessable, and not issued in violation of any preemptive rights.

          (k) No Broker.  Neither the Parent nor the Company has any  obligation
     or  liability  to any  broker,  finder,  or other  person for any broker or
     similar services with respect to the Sale.

          (l) Compliance  With  Applicable  Laws. The Parent's and the Company's
     execution, delivery, and performance of this Agreement will not violate any
     Applicable  Laws.  Moreover,  no  Lawsuit  by or before  any court or other
     governmental  entity  exists,  or to the  knowledge  of the  Parent  or the
     Company is  threatened,  that would prohibit the Parent or the Company from
     consummating the Sale or seek damages with respect to the Sale.

          (m) Funding of the  Acquisition.  The Parent  possesses  adequate cash
     reserves and  financing  commitments  to fund the Closing Date Cash payable
     upon the consummation of the Sale.

          (n)  Disclosure.  The Parent and the Company  have fully  provided the
     Target and the  Stockholders  with all  information  that the Target or the
     Stockholders  requested when deciding whether to enter into this Agreement.
     No  representation  or warranty of the Parent or the Company  contained  in
     this  Agreement  contains  any  untrue  statement  or omits to state a fact
     necessary the make the statements in such  representation  and warranty not
     misleading.

      Section  5.2   Representations  and  Warranties  of  the  Target  and  the
Stockholders. The Target and the Stockholders,  jointly and severally, represent
and warrant,  as of the date of execution  hereof, to the Parent and the Company
as follows:

          (a)  Organization of the Target.  The Target is a service  corporation
     duly organized,  validly  existing,  and in good standing under the laws of
     the State of  Illinois.  The Target is not  required to qualify to transact
     business as a foreign  corporation  in any  jurisdiction,  except where the
     failure  to  qualify  could not have a  material  adverse  effect  upon the
     Target.

          (b) Power and  Authority  of the  Target.  The  Target  possesses  the
     requisite  corporate power and authority to execute,  deliver,  and perform
     this Agreement, without obtaining any approval, authorization,  consent, or
     waiver  or giving  any  notice,  other  than the  approval  of its board of
     directors and the Stockholders,  which it has properly obtained. The Target
     also  possesses  the  requisite  corporate  power and  authority to own its
     properties and carry on its business as presently conducted.
<PAGE>

          (c)  Execution,  Delivery,  and  Enforceability.  The  Target has duly
     authorized,  executed,  and delivered  this  Agreement,  and this Agreement
     constitutes  a  valid,   legal,  and  binding  obligation  of  the  Target,
     enforceable against the Target in accordance with its terms, subject to any
     Law Affecting Creditors' Rights.

          (d) Target Shares.  The record and beneficial  ownership of the Target
     Shares are described on Schedule 5.2(d).  The Target Shares  constitute all
     of the authorized securities of the Target, the Stockholders own all of the
     outstanding  Target Shares,  and all  Stockholders  are signatories to this
     Agreement. The Target Shares are comprised of (i) 100,000 authorized shares
     of Common Stock,  par value $10.00 per share (the "Target Common  Shares"),
     of which 3,000 shares are outstanding, and (ii) 10,000 authorized shares of
     Preferred  Stock,  par value  $100.00  per  share  (the  "Target  Preferred
     Shares"),  of which 1,650 shares are  outstanding.  All of the  outstanding
     Target Shares have been validly  authorized and issued,  are fully paid and
     nonassessable, and were not issued in violation of any preemptive rights or
     Applicable  Law. There are no preemptive  rights with respect to the Target
     Shares.  The Stockholders  have good,  valid and indefeasible  title to the
     Target  Shares and no Liens exist with respect to any Target  Shares.  As a
     result of the  transactions  contemplated  hereby,  record  and  beneficial
     ownership of the Target Shares will be transferred to the Company, free and
     clear of all Liens of any kind.

          (e) No Other Securities. The Target does not have outstanding: (i) any
     securities  other than the Target Shares,  (ii) any options,  warrants,  or
     other rights to purchase any Target securities,  or (iii) any commitment to
     issue or purchase any  securities,  including any Target  Shares,  options,
     warrants, or other securities.

          (f) Subsidiaries.  Except as described on Schedule 5.2(f),  the Target
     does not  directly or  indirectly  own or hold any  interest in any Person,
     including   any   equity   securities   or   partnership   interests.   All
     representations and warranties of the Target and the Stockholders set forth
     in this Section 5.2  applicable  to the  Target's  assets,  business,  cash
     flows,  financial condition,  operating results, and prospects apply to the
     Target on a  consolidated  basis with the  Persons  described  on  Schedule
     5.2(f) (the "Subsidiaries").

               (i)  Organization  of  the  Subsidiaries.  Each  Subsidiary  is a
          corporation or a partnership duly organized,  validly existing, and in
          good standing under the laws of the state of its jurisdiction as shown
          on Schedule  5.2(f).  Each  Subsidiary  is not  required to qualify to
          transact business as a foreign corporation in any jurisdiction, except
          where the failure to qualify could not have a material  adverse effect
          upon such Subsidiary.

               (ii) Power and Authority. Each Subsidiary possesses the requisite
          power and authority to own its properties and carry on its business as
          presently conducted. 

               (iii)  Subsidiary   Securities.   The  Target  owns  all  of  the
          outstanding  equity  securities  or  partnership   interests  of  each
          Subsidiary  free and clear of any Liens,  except the Permitted  Liens.
          All of the outstanding equity securities and partnership  interests of
          each  Subsidiary  have  been  validly  issued,   are  fully  paid  and
          nonassessable,  and were not  issued in  violation  of any  preemptive
          rights or  Applicable  Law. No  Subsidiary  has any  outstanding:  (A)
          options,   warrants,  or  other  rights  to  purchase  any  Subsidiary
          securities,  or (B) commitment to issue any securities,  including any
          options, warrants, or other securities.

          (g) Hospital  Contracts.  All Documents to which the Target is a party
     (or  entered  into on behalf of the  Target)  pursuant  to which the Target
     provides Emergency  Department  Services or other services to any hospitals

<PAGE>

     (the "Hospitals") are listed on Schedule 5.2(g) (the "Hospital Contracts").
     No Document exists with respect to any Hospital  Contract pursuant to which
     the  Target  has  subcontracted  to  another  Person  any of  the  Target's
     obligations under any Hospital  Contract,  except for the delegation of the
     performance of medical services pursuant to the Physician Contracts. Except
     as described on Schedule  5.2(g) and Schedule  7.1(b),  no Stockholder  has
     entered into any Document in his or her individual capacity or on behalf of
     any Person other than the Target to provide Emergency  Department  Services
     or other services to any hospital or other health care facility.

          (h) Physician Contracts.  All Documents to which the Target is a party
     (or entered into on behalf of the Target)  pursuant to which the Target has
     employed or engaged  physicians (the  "Physicians") to render services with
     respect to the Hospital  Contracts or otherwise  (including  the  Physician
     Stockholder   Employment   Agreements)   are  listed  on  Schedule   5.2(h)
     (collectively,  the  "Physician  Contracts")  and the hourly  rates for the
     physicians  party to the  Physician  Contracts  are set  forth on  Schedule
     5.2(h).

          (i)  Other  Contracts.  Except  for  the  Hospital  Contracts  and the
     Physician Contracts,  all material Documents to which the Target is a party
     (or  entered  into  on  behalf  of the  Target),  including  any  Documents
     affecting  the Target  Shares,  or any  material  Documents  affecting  the
     Target,  regardless of whether the Target is a party to such Documents, are
     listed on Schedule 5.2(i)  (collectively with the other Documents described
     on Schedule 5.2(i) the "Other Contracts").

          (j) Contracts Generally. Except as described on Schedule 5.2(j):

                  (i) Valid and Binding. Each Contract is valid, binding, and in
            full  force  and  effect.  To the  knowledge  of the  Target  or any
            Stockholder, no Contract has been amended or supplemented in any way
            except as described in the description of such Contract and no party
            to any Contract  has assigned any of its rights or delegated  any of
            its duties  under such  Contract  except for the  delegation  of the
            performance  of  Medical  Services  under  the  Hospital   Contracts
            pursuant to the Physician Contracts.

                  (ii) No Breach  or  Default.  No  material  breach or  default
            exists under any Contract, and to the knowledge of the Target or any
            Stockholder, no event has occurred with respect to any Contract that
            with the lapse of time or action  or  inaction  by any party to such
            Contract  could result in a material  breach or a default under such
            Contract.

                  (iii) Enforceable by the Target After the Sale.  Following the
            Sale,  all of the Target's  rights under each Contract  shall remain
            intact and inure to the Target,  as owned by the  Company,  and such
            Contract will be enforceable by the Target or its assignee after the
            Sale in accordance with such Contract's  terms,  subject to any Laws
            Affecting Creditors' Rights.

                  (iv) No Amounts Owed. The Target does not owe more than $5,000
            with respect to any  Contract,  except  amounts owed in the ordinary
            course of business  consistent  with the Target's past practices and
            the terms of such Contract.

                  (v)   No Liens.  The Target's rights under each Contract are
            free and clear of any Lien, other than the Permitted Liens.

                  (vi)  No  Burdensome  Contracts.  No  Contract  or  any  other
            Document:  (A)  requires  the  Target to make  purchases  or pay for
            services in excess of the  requirements of its business as presently
            conducted,  (B)  guarantees  any  obligation  of  another  Person or
            provides any type of indemnification by the Target, or (C) restricts
            the ability of the Target,  any  Stockholder,  or any  Physician  to

<PAGE>

            compete.

            (k) Consents. All approvals,  consents, and notices,  required to be
      obtained or given by or on behalf of the Target before consummation of the
      Sale,  including a Hospital  Consent from each Hospital,  are described on
      Schedule 5.2(k) (collectively, the "Consents").

          (l) No HSR Filing  Required.  The Sale is exempt from the notification
     and waiting requirements under the Hart-Scott-Rodino Antitrust Improvements
     Act of 1976,  as amended,  because the Target and the  Stockholders  expect
     that the aggregate  consideration  for the Target  Shares  pursuant to this
     Agreement will be less than $15,000,000,  the Target had total assets as of
     December  31, 1995 of less than  $25,000,000,  and the Target had net sales
     during  the year  ended  December  31,  1995 of less than  $25,000,000,  as
     required under 16 C.F.R. ss. 802.20(b).  Moreover, except for the Consents,
     the  execution  and  delivery  of  this  Agreement  by the  Target  and the
     Stockholders  and the consummation of the Sale do not require any approval,
     consent, filing, registration, or other action by any governmental entity.

            (m)  Conflicts.  Subject to receipt of the  Consents,  the  Target's
      execution,  delivery,  or  performance of this Agreement will not conflict
      with,  constitute a breach or violation of,  result in a Lien against,  or
      give  rise to any  default  or right  of  acceleration,  cancellation,  or
      termination with respect to any Document to which the Target is a party or
      by which the Target's assets are bound (or give rise to an event that with
      notice,  lapse of time, or both, would result in such a conflict,  breach,
      violation,   Lien,   default,   or  right),   including  the  articles  of
      incorporation and the bylaws of the Target.

            (n) Permits. The Target possesses all authorizations,  certificates,
      franchises,  licenses, and permits necessary for the lawful conduct of its
      business  (collectively,  the  "Permits"),  each of  which  is  listed  on
      Schedule 5.2(n).

            (o) Compliance  with  Applicable  Laws. The Target has complied with
      all  Applicable  Laws that  might have a  material  adverse  affect on the
      Target if not complied  with and the  Target's  execution,  delivery,  and
      performance  of this  Agreement  will not  violate  any  Applicable  Laws.
      Moreover,  no Lawsuit by or before any court or other governmental  entity
      exists or is pending or to the knowledge of the Target or any  Stockholder
      is  threatened  that would  prohibit the Target or the  Stockholders  from
      consummating the Sale or seek damages with respect to the Sale.

            (p)  Financial  Statements.  The Target has prepared  the  financial
      statements  and related  notes and schedules  attached  hereto as Schedule
      5.2(p)  (the  "Financial  Statements")  from its books and  records  using
      generally  accepted  accounting  principles  applied on a basis consistent
      with the Target's past practices.  The Financial Statements present fairly
      the  financial  position,  results  of  operations,  and cash flows of the
      Target  as of the  date  and for the  periods  covered  by such  Financial
      Statements. The Target owns all of the assets described in the most recent
      balance sheet that is part of the Financial  Statements  (the "Most Recent
      Balance  Sheet")  and  does  not  have  any  liabilities  other  than  the
      liabilities  described in such balance  sheet,  the notes to the Financial
      Statements  and the Schedules to this Agreement and  liabilities  incurred
      since  the  date of that  balance  sheet  in the  ordinary  course  of the
      Target's business consistent with its past practices.

            (q)  Absence of Certain  Changes.  Except as  disclosed  in Schedule
      5.2(q),  since the date of the Most Recent Balance  Sheet,  there have not
      been: (i) any  transactions  in which the Target has engaged that were not
      in the ordinary  course of the Target's  business and consistent  with its
      past  practices,  (ii) any  Material  Adverse  Changes with respect to the
      Target,  (iii) any issuance,  purchase,  redemption  or other  transaction
      affecting  any Target  Shares or other equity  securities or rights in the

<PAGE>

      Target,  (iv) any declaration or payment of any dividends by the Target or
      the making of any other  distributions  or  transfers by the Target to any
      Stockholders  other  than  normal  salary  or  other  compensation  in the
      ordinary course of business, (v) any disposition, or commitment to dispose
      of, any significant assets of the Target,  (vi) any assumption,  creation,
      guarantee,  or  incurrence  of any  indebtedness  by the  Target,  whether
      absolute or contingent,  other than indebtedness incurred by the Target in
      the ordinary course of its business consistent with past practices,  (vii)
      any material amendments,  modifications,  or terminations of any Documents
      to which  the  Target  is or was a party or by which  any of the  Target's
      assets are or were bound or any new  Documents  entered into by the Target
      that are material,  (viii) any changes in the accounting  principles  that
      the Target uses when maintaining its accounting  records or presenting its
      financial  statements  or other  alteration  in the manner of keeping  its
      accounts, books, or records, (ix) any hiring,  terminating, or changing of
      any of the Target's  directors,  officers,  or employees  having senior or
      supervisory  positions,  (x) any  increase  in the  compensation  that the
      Target pays to any Person, or any commitment to make any such increase, or
      (xi) any making, changing, or forgiving of any loan between the Target and
      any of its Affiliates, directors, employees, Physicians, officers, related
      parties, or Stockholders.

            (r) Accounts Receivable. The accounts and notes receivable reflected
      on the Most Recent Balance Sheet and all accounts and notes  receivable of
      the  Target  arising  after the date of such  balance  sheet,  other  than
      accounts and notes receivable  collected since then in the ordinary course
      of the Target's  business  consistent with its past  practices:  (i) arose
      from bona fide  transactions  by the Target in the ordinary  course of its
      business  consistent  with its past  practices,  (ii)  represent bona fide
      indebtedness  of the  respective  debtors,  (iii) are  collectible in fall
      subject to any  reserve for  doubtful  accounts  included in the  Target's
      books and records, and (iv) are not, to the knowledge of the Target or any
      Stockholder, subject to any defense or offset.

            (s) Tangible  Property.  Subject to the Permitted  Liens, the Target
      has good and  marketable  title  to all the  real  and  personal  property
      reflected  in the Most  Recent  Balance  Sheet  and all real and  personal
      property that it has acquired since the date of such balance sheet,  other
      than such real and personal property that the Target has disposed of since
      then in the  ordinary  course  of its  business  consistent  with its past
      practices  and other than as  described  on  Schedule  5.2(s).  All of the
      Target's  tangible  assets that are  material to its  business are in good
      operating condition.

            (t) No  Undisclosed  Liabilities.  The  assets and  business  of the
      Target are not subject to any liabilities, obligations, or other Claims of
      any nature,  absolute or contingent,  or any facts that could give rise to
      any  liabilities,  obligations,  or other  Claims  that  could  materially
      adversely affect the assets,  business,  cash flows,  financial condition,
      prospects,  or  operations  of the  Target,  except  as  disclosed  in the
      Financial Statements or incurred since the date of the Most Recent Balance
      Sheet and disclosed on Schedule 5.2(t).

          (u) Related Party  Indebtedness.  Other than normal  compensation owed
     under the Physician  Contracts,  the Target does not owe any amounts to any
     of its Affiliates,  directors,  employees,  officers,  physicians,  related
     parties, or Stockholders.  Moreover, no such Persons owe any amounts to the
     Target.

          (v) Permitted  Liens. The Target has good and marketable title to each
     of its assets,  free and clear of any Lien,  other than the Liens listed on
     Schedule 5.2(v) (collectively, the "Permitted Liens").

            (w) Litigation and Claims.  Except as described on Schedule  5.2(w),
      no Lawsuit is pending or to the knowledge of Target or any  Stockholder is
      threatened against or affecting: (i) the Target, (ii) any Stockholder (but

<PAGE>

      only with respect to Lawsuits affecting the Stockholder in its capacity as
      a Stockholder), (iii) any Physician, including the Stockholders, (but only
      with respect to Lawsuits  involving the provision of Emergency  Department
      Services  or the  practice of  medicine),  (iv) any  Contract,  or (v) the
      execution,  delivery, or performance of this Agreement.  Any and all acts,
      conditions,  circumstances,  events,  or incidences that might result in a
      Claim against the Target, any Stockholder or any Physician with respect to
      the provision of Emergency Department Services or the practice of medicine
      that could have a  material  adverse  effect  upon the  assets,  business,
      financial  condition  or  operations  of the Target are also  described in
      Schedule 5.2(w).  The Target reasonably  believes that Insurance  Policies
      adequately  cover any liabilities that may arise with respect to the items
      described on Schedule 5.2(w).

            (x)   Taxes.  Except as provided on Schedule 5.2(x):

               (i)  Tax  Returns  and  Extensions.  Each of the  Target  and its
          Subsidiaries  has filed all Tax Returns  that it was required to file.
          All such  Tax  Returns  were  correct  and  complete  in all  material
          respects.  All Taxes owed by any of the  Target  and its  Subsidiaries
          (whether or not shown on any Tax Return)  have been paid.  None of the
          Target  and  its  Subsidiaries  currently  is the  beneficiary  of any
          extension  of time within  which to file any Tax Return.  No claim has
          ever been made to the knowledge of the  Stockholders  or the Target by
          an  authority  in a  jurisdiction  where  any of the  Target  and  its
          Subsidiaries does not file Tax Returns that it is or may be subject to
          taxation by that jurisdiction. There are no Liens on any of the assets
          of any of the Target  and its  Subsidiaries  that arose in  connection
          with any failure (or alleged failure) to pay any Tax.

               (ii)  No  Additional  Withholding.  Each  of the  Target  and its
          Subsidiaries  has  withheld  and paid all Taxes  required to have been
          withheld  and paid in  connection  with  amounts  paid or owing to any
          employee,  independent  contractor,  creditor,  stockholder,  or other
          third party.

               (iii) No Audits. No director or officer (or employee  responsible
          for Tax matters) of any of the Target and its Subsidiaries expects any
          authority to assess any additional  Taxes for any period for which Tax
          Returns have been filed.  There is no dispute or claim  concerning any
          Tax  Liability  of any of the Target and its  Subsidiaries  either (A)
          claimed or raised by any  authority  in writing or (B) as to which any
          of the  Stockholders  and the directors  and officers  (and  employees
          responsible  for Tax matters) of the Target and its  Subsidiaries  has
          knowledge  based  upon  personal   contact  with  any  agent  of  such
          authority.  Schedule 5.2(x) indicates those Tax Returns that have been
          audited,  and  indicates  those Tax  Returns  that  currently  are the
          subject  of audit.  The  Target  has  delivered  to the Parent and the
          Company correct and complete copies of all federal income Tax Returns,
          examination reports,  and statements of deficiencies  assessed against
          or agreed to by any of the Target and its  Subsidiaries  since January
          1, 1990.

               (iv) No Waiver of Limitations  Period. None of the Target and its
          Subsidiaries has waived any statute of limitations in respect of Taxes
          or agreed to any extension of time with respect to a Tax assessment or
          deficiency. (v) Miscellaneous. None of the Target and its Subsidiaries
          has filed a consent under Code Section 341(f)  concerning  collapsible
          corporations.  None of the  Target and its  Subsidiaries  has made any
          payments,  is  obligated  to make any  payments,  or is a party to any
          agreement that under certain  circumstances  could obligate it to make
          any payments that will not be deductible under Code Section 280G. None
          of the  Target  and its  Subsidiaries  has been a United  States  real
          property  holding  corporation  within  the  meaning  of Code  Section
          897(c)(2)  during the  applicable  period  specified  in Code  Section

<PAGE>

          897(c)(1)(A)(ii).   Each  of  the  Target  and  its  Subsidiaries  has
          disclosed  on its  federal  income Tax  Returns  all  positions  taken
          therein  that  could  give  rise to a  substantial  understatement  of
          federal  income Tax within the meaning of Code Section  6662.  None of
          the Target and its  Subsidiaries  is a party to any Tax  allocation or
          sharing  agreement.  None of the Target and its  Subsidiaries  (A) has
          been a member of an  Affiliated  Group filing a  consolidated  federal
          income Tax Return  (other than a group the common  parent of which was
          the Target) or (B) to the knowledge of the Target or its Subsidiaries,
          has any  liability  for the Taxes of any Person (other than any of the
          Target and its  Subsidiaries)  under Treas.  Reg. Section 1.1502-6 (or
          any  similar  provision  of  state,  local,  or  foreign  law),  as  a
          transferee or successor, by contract, or otherwise.


               (vi) Tax  Attributes.  Schedule  5.2(x) sets forth the  following
          information  with  respect  to  the  Target  as  of  the  most  recent
          practicable date (as well as on an estimated pro forma basis as of the
          Closing Date giving  effect to the  consummation  of the  transactions
          contemplated  hereby):  (A) the basis of the Target in its assets; and
          (B) the amount of any net operating  loss,  net capital  loss,  unused
          investment or other credit,  unused foreign tax, or excess  charitable
          contribution allocable to the Target.

               (vii) Tax  Liability.  The  unpaid  Taxes of the  Target  and its
          Subsidiaries as of February 29, 1996 do not exceed the reserve for Tax
          liability  (rather than any reserve for deferred Taxes  established to
          reflect timing  differences  between book and Tax income) set forth on
          the face of the balance  sheet dated as of February 29, 1996  provided
          to the Parent and the  Company on April 18, 1996  (rather  than in any
          notes thereto).

               (viii)No Tax Liens. No Tax liens exist with respect to any assets
          of the Target.

            (y)  Insurance.  All  insurance  policies in effect that provide any
      type of insurance  coverage  for the Target with respect to its  business,
      casualties, errors and omissions, general business liabilities, or medical
      malpractice are described on Schedule 5.2(y) (collectively, the "Insurance
      Policies").  The Target has not  received  any notice  from any  insurance
      carrier  of any  intention  to  discontinue  any  Insurance  Policy  or to
      discontinue or decrease any insurance coverage under any Insurance Policy.

            (z)   Employee Benefit Plans.

               (i) ERISA Welfare Plans.  All employee  welfare benefit plans, as
          defined in Section 3(l) of the Employee Retirement Income Security Act
          of 1974,  as amended  ("ERISA"),  established  or  maintained by or on
          behalf of the  Target or any of its  Affiliates,  or with  respect  to
          which the Target or any of its Affiliates has contributed, is required
          to  contribute,  or may have any  liability,  are  listed on  Schedule
          5.2(z) (the "ERISA  Welfare  Plans").  Such ERISA Welfare Plans do not
          provide for any retiree coverage.

               (ii) ERISA Pension Plans.  All employee pension benefit plans, as
          defined in Section 3(2) of ERISA,  established  or maintained by or on
          behalf of the  Target or any of its  Affiliates,  or with  respect  to
          which the Target or any of its Affiliates has contributed, is required
          to  contribute,  or may have any  liability,  are  listed on  Schedule
          5.2(z) (the "ERISA Pension Plans"). No ERISA Pension Plan has incurred
          any "accumulated  funding  deficiency" or "waived funding  deficiency"
          within the  meaning of Section 302 of ERISA or Section 412 of the Code
          and the  Target  has  never  sought to obtain  any  variance  from the
          minimum funding standards  pursuant to Section 412(d) of the Code. The
          funding  method used in connection  with each ERISA Pension Plan meets
          the  requirements of ERISA and the Code and the actuarial  assumptions

<PAGE>

          used in  connection  with  each such  plan are  reasonable,  given the
          experience of such ERISA Pension Plan and reasonable expectations.

               (iii)  Non-ERISA   Plans.  All  bonus,   deferred   compensation,
          executive compensation,  fringe benefit,  incentive,  severance, stock
          option,  or  other  non-ERISA  plans  that  the  Target  or any of its
          Affiliates  maintains,  or with  respect to which the Target or any of
          its Affiliates has any liability or obligation, are listed on Schedule
          5.2(z) (the "Non-ERISA Plans," and collectively with the ERISA Welfare
          Plans and the ERISA Pension Plans, the "Employee Benefit Plans").

               (iv)  Delivery  of  Documents.  The Target has  delivered  to the
          Parent  and the  Company  correct  and  complete  copies  of (1)  each
          Employee Benefit Plan,  including all amendments to such plan, and all
          summary plan  descriptions  and other summaries of such plan, (2) each
          trust  agreement,  annuity or  insurance  contract,  or other  funding
          instrument  pertaining  to each Employee  Benefit  Plan,  (3) the most
          recent  determination  letter  issued by the IRS with  respect to each
          Employee Benefit Plan that is intended to be tax-qualified  and a copy
          of any pending  applications for such IRS letters,  (4) the three most
          recent actuarial  valuation reports for each Employee Benefit Plan for
          which an actuarial  valuation  report has been  prepared,  (5) the two
          most recent  annual  reports  (IRS Form 5500  Series),  including  all
          schedules to such reports, and plan audits, if applicable,  filed with
          respect to each Employee Benefit Plan, and (6) all relevant  schedules
          concerning  the  administrative   costs,   benefit  payments,   claims
          experience,  financial  information,  and insurance  premiums for each
          Employee Benefit Plan.

               (v)  Amendments.  Each  Employee  Benefit  Plan can be amended or
          terminated  at any time  without  approval  from any  Person,  without
          advance  notice  (except for any notice  required  under ERISA Section
          204(h) with respect to the money purchase or target benefit plan), and
          without any liability other than for benefits  accrued prior to, or as
          required to be vested pursuant to, such amendment or termination.

               (vi) Joint & Several  Liability.  With  respect to each  Employee
          Benefit  Plan  and  any  other  similar  arrangement  or  plan  either
          currently or previously terminated,  maintained,  or contributed to by
          any entity which either is  currently or was  previously  under common
          control with the Target as determined under Code Section 414, no event
          has occurred and no condition exists that after the Sale could subject
          the Parent or the Target,  directly or  indirectly,  to any  liability
          (including  liability  under  any  indemnification   agreement)  under
          Section 412,  4971,  4975, or 4980B of the Code or Section 502, 601 or
          606 of ERISA  other than a  liability  which would not have a material
          adverse  effect  upon  the  assets,  business,   financial  condition,
          prospects or operations of the Parent, the Company or the Target.

               (vii) Claims for  Benefits.  All benefits due under each Employee
          Benefit Plan have been timely paid and there is no material Lawsuit or
          Claim, other than routine uncontested claims for benefits, pending, or
          to the knowledge of the Target or any Stockholder threatened,  against
          any  Employee  Benefit  Plan or the  fiduciaries  of any such  plan or
          otherwise involving or pertaining to any such plan.  Moreover,  to the
          knowledge  of the Target or any  Subsidiary,  no basis  exists for any
          such Lawsuit or Claim.

               (viii)Compliance  with Plan and  Applicable  Law.  The Target has
          administered  and documented each Employee  Benefit Plan in compliance
          with such plan's terms and  Applicable  Law in all material  respects.
          Each Employee Benefit Plan and any related trust agreement, annuity or
          insurance  contract,  or other funding instrument  currently complies,
          and has  complied in the past,  in all material  respects,  both as to
          form and operation,  with the terms of such plan and related documents
          and with all Applicable Law,  including ERISA and the Code, as well as

<PAGE>

          the provisions of any applicable Documents.

               (ix)  Contributions.  All  contributions  and payments to or with
          respect to each  Employee  Benefit  Plan have been timely made and the
          Target  has  made   adequate   provision   for   reserves  to  satisfy
          contributions  and  payments  that have not been made because they are
          not yet due under the terms of such  Employee  Benefit Plan or related
          Document, or Applicable Law.

               (x) No Change in  Control  Triggers.  No  Employee  Benefit  Plan
          provides for any accelerated payments, deemed satisfaction of goals or
          conditions, new or increased benefits, or vesting conditioned in whole
          or in part  upon a  change  in  control  of the  Target  or any of its
          Affiliates or any plant closing.

               (xi)  No  Benefits  Increases.  No  agreement,   commitment,   or
          obligation  exists to increase any benefits under any Employee Benefit
          Plan or to adopt any new Employee Benefit Plan.

               (xii)  No  Pension  Plans.  Neither  the  Target  nor  any of its
          Affiliates  maintains,  participates  in,  contributes  to, or has any
          obligation to contribute  to any defined  benefit plan,  multiemployer
          plan,  multiple employer plan, or, except for any frozen or terminated
          money  purchase plan and target  benefit plan, any plan subject to the
          minimum  funding  provisions  of the Code or the  minimum  funding  or
          termination  insurance  provisions of ERISA, or has had any obligation
          with  respect  to  such a  plan  during  the  five  years  immediately
          preceding the date of this  Agreement  (except for said money purchase
          or target benefit plan).

               (xiii)No   Audits  or  Prohibited   Transactions.   No  audit  or
          investigation  by any  governmental  authority  is pending,  or to the
          knowledge of the Target or any Stockholder  threatened,  regarding any
          Employee  Benefit Plan, and no party dealing with any Employee Benefit
          Plan has engaged in any prohibited transactions (within the meaning of
          Section  406 of ERISA or  Section  4975 of the Code) or any  breach of
          fiduciary duty.

               (xiv) No  Unfunded  Benefits.  No Employee  Benefit  Plan has any
          unfunded  benefits  that are not fully  reflected  in the Most  Recent
          Balance Sheet.

               (xv) Tax  Qualified  Plans.  Each  Employee  Benefit Plan that is
          intended to be a tax-qualified plan is so qualified,  in both form and
          operation,  has received one or more IRS determination letters to such
          effect,  and no facts exist that could cause the  qualified  status of
          such Employee Benefit Plan to be adversely affected.

            (aa)  Labor Relations.

               (i) No Employment Agreements. Except for the Physician Contracts,
          or  as  otherwise   described  on  Schedule  5.2(aa),   no  employment
          agreements  exist  between  the  Target  and any of its  employees  or
          Stockholders.

               (ii) No Loans.  No loans or loan  agreements  exist  between  the
          Target and any employee or independent contractor of the Target.

               (iii)  No  Collective   Bargaining   Agreements.   No  collective
          bargaining  agreements  applicable  to  any  employee  or  independent
          contractor of the Target exist.  Moreover, no Person has requested any
          such agreement and no discussions or  negotiations  have occurred with
          respect to any such agreement.

               (iv) No Strikes.  No strikes,  work  stoppages,  work  slowdowns,
          sick-outs,  lock-outs, or any threats of the foregoing with respect to

<PAGE>

          any employees or  independent  contractors of the Target have occurred
          or are threatened.

               (v) No Labor Law Violations. No charges of discrimination, unfair
          labor practices,  or violations of fair employment,  wage payment,  or
          health and safety laws are pending or to the  knowledge  of the Target
          or  any  Stockholder   are  threatened   before  any  court  or  other
          governmental   entity   concerning   any   employees  or   independent
          contractors of the Target, and no basis exists for any such charge.

               (bb)  Environmental  Matters.  The Target has  complied  with all
          Environmental  Laws  and,  to  the  knowledge  of  the  Target  or any
          Stockholders,  has never been named as a potentially responsible party
          under any Environmental Laws.  Moreover,  the Target is not subject to
          any liability (absolute,  contingent, or otherwise) in connection with
          any release or  threatened  release of any  Material of  Environmental
          Concern  into  the  environment  or  subject  to  any  reclamation  or
          remediation requirements under any Environmental Laws.

               (cc) Licenses to Practice  Medicine.  Each  Stockholder  and each
          Physician is licensed to practice medicine in each jurisdiction  where
          he or she currently practices medicine.

               (dd) No Broker.  Neither the Target nor any  Stockholder  has any
          obligation or liability to any broker, finder, or other Person for any
          broker or similar services with respect to the Sale.

               (ee) Absence of Certain Business  Practices.  Neither the Target,
          any  Stockholder,  nor any Affiliate of either of them has directly or
          indirectly  given or agreed to give any gift or similar benefit to any
          Hospital employee or  representative,  government  employee,  or other
          Person  who was or is in a  possible  position  to help or hinder  the
          Target, which gift or benefit: (i) might subject any Person to damages
          or  penalties  in a civil or  criminal  proceeding,  (ii) might have a
          material  adverse  affect on the Target if not given,  or (iii)  might
          have a material adverse affect on the Target if not continued.

               (ff) Solvency. The Sale will not constitute a fraudulent transfer
          or conveyance with respect to the Target.

               (gg)  Disclosure.  The Target and the Stockholders are unaware of
          any material facts  concerning the Target that they have not disclosed
          to the Parent and the Company in this Agreement or in writing pursuant
          to this  Agreement  and the  Target  and the  Stockholders  have fully
          provided  the Parent and the  Company  with all  information  that the
          Parent or the Company  requested  when deciding  whether to enter into
          this Agreement.  Moreover, no representation or warranty of the Target
          and the Stockholders  contained in this Agreement  contains any untrue
          statement or omits to state a fact necessary to make the statements in
          such representation and warranty not misleading.

               (hh) No Corporate  Practice.  No Stockholder  has received notice
          from any governmental  authority,  from its counsel, or from any other
          of its advisors  that any Party to this  Agreement  could be precluded
          from  receiving  the  benefits  of this  Agreement  as a result of the
          structure of the  transaction  contemplated  by this  Agreement.  Each
          Stockholder  accordingly  agrees that such Stockholder will not, in an
          attempt  to void or  nullify  this  Agreement  or any other  agreement
          executed in connection  herewith or any relationship  involving Parent
          or any  Stockholder,  sue,  claim,  aver,  allege or assert  that this
          Agreement  or  any  such  relationship   violates  any  law,  rule  or
          regulation relating to the corporate practice of medicine.

     Section  5.3  Representations  and  Warranties  of Each  Stockholder.  Each
Stockholder  represents and warrants, as of the date of execution hereof, to the
Parent and the Company as follows:
<PAGE>

               (a) Legal Capacity. Such Stockholder possesses the legal capacity
          to execute, deliver and perform this Agreement,  without obtaining any
          approval, authorization, consent, or waiver or giving any notice.

               (b) Execution, Delivery, and Enforceability. Such Stockholder has
          duly  executed  and  delivered  this  Agreement,  and  this  Agreement
          constitutes   a  valid,   legal,   and  binding   obligation  of  such
          Stockholder,  enforceable  against such Stockholder in accordance with
          its terms, subject to any Law Affecting Creditors' Rights.

               (c) Target  Shares.  No Liens  exist  with  respect to the Target
          Shares that such Stockholder owns.

               (d)  Conflicts.  Such  Stockholder's  execution,   delivery,  and
          performance of this  Agreement  will not conflict  with,  constitute a
          breach or violation of, result in a Lien against,  or give rise to any
          default or right of  acceleration,  cancellation,  or termination with
          respect to any  Document  to which such  Stockholder  is a party or by
          which any of such  Stockholder's  assets are bound (or give rise to an
          event that with notice, lapse or time, or both, would result in such a
          conflict, breach, violation, Lien, default, or right).

               (e)  Compliance  With  Applicable   Laws.  Such  Stockholder  has
          complied with all Applicable Laws material to the practice of medicine
          and such Stockholder's  execution,  delivery,  and performance of this
          Agreement will not violate any Applicable Laws.  Moreover,  no Lawsuit
          by or before any court or other  governmental  entity exists or to the
          knowledge of such  Stockholder is threatened,  that would prohibit the
          Target  or such  Stockholder  from  consummating  the Sale or  seeking
          damages with respect to the Sale.

               (f)  No  Disciplinary   Proceedings.   Such  Stockholder  is  not
          currently  subject  to any  professional  disciplinary  proceeding  or
          action with respect to the provision of Emergency  Department Services
          or the practice of medicine whatsoever and has not been subject to any
          such proceeding or action in the past.

               (g) Sophisticated Investor.

                    (i) Accredited Investor.  Such Stockholder is an "accredited
               investor" as defined in Rule 501(a) under the Securities Act.

                    (ii) Investment  Purpose.  Such Stockholder is acquiring the
               Parent Shares delivered pursuant to this Agreement for investment
               purposes  and not with a view to  making a  distribution  of such
               shares.

                    (iii) Investment Experience. Such Stockholder has sufficient
               knowledge  and  experience  to enable him or her to evaluate  the
               merits and risks of an investment in the Parent Shares.

                    (iv) Financial Disclosure. Such Stockholder has received all
               of the  financial and other  information  of the Parent that such
               Stockholder  considers necessary to evaluate an investment in the
               Parent Shares.

                    (v) Ability to Bear Loss.  Such  Stockholder has the ability
               to bear any loss with  respect  to his or her  investment  in the
               Parent Shares.

                    (vi) Residency.  Such Stockholder is a bona fide resident of
               the State of Illinois.

            (h)  Covenant  Not to Compete.  The  Covenant  Not to Compete is not
      unduly  burdensome to such Stockholder and such Stockholder is willing and

<PAGE>

      able to compete  outside the  parameters  of the  Covenant Not to Compete.
      Except for the  Covenant  Not to  Compete  and the  Physician  Stockholder
      Employment  Agreements,  no Document in any way  restricts  the ability of
      such Stockholder to compete whatsoever.


                                VI. COVENANTS

      Section 6.1 Best Efforts to  Consummate  the Sale.  Each of the parties to
this  Agreement  shall use its best efforts to take,  or cause to be taken,  all
actions  necessary,  proper,  or advisable to consummate  the Sale in accordance
with and subject to the terms of this Agreement.

      Section 6.2 Access to the Target.  From the date of this Agreement through
the Closing  Date,  the Target shall permit the Parent,  the Company,  and their
advisors  and  representatives  access  to the  Target's  assets  and  business,
including  the  Target's  books and  records.  Moreover,  during this period the
Target shall cause its officers,  employees,  advisors,  and  representatives to
furnish   promptly  to  the  Parent,   the  Company,   and  their  advisors  and
representatives,  at the sole cost and  expense of the  Parent and the  Company,
such financial and operating information as such Persons may reasonably request,
including copies of any requested documents.

      Section 6.3  Operation  of the Target  Pending the Sale.  From the date of
this  Agreement  through the Closing Date,  and except as otherwise set forth in
Exhibit D, the Target shall, and the Stockholders shall cause the Target to:

            (a)  Representations  and  Warranties.  Use  reasonable  efforts  to
      operate and  maintain its assets and business in such a manner so that the
      representations  and  warranties  of the Target and the  Stockholders  set
      forth in this  Agreement  shall continue to be correct and complete in all
      material respects at all times prior to the Closing Date as if made on and
      as of such times.

            (b)  Operate  the  Business  in the  Ordinary  Course.  Except as is
      otherwise  provided  for in this  Agreement,  operate its  business in the
      ordinary  course  consistent with past practices and this Agreement and in
      compliance with all Applicable Laws material to its business and assets;

          (c) Maintain  Goodwill.  Preserve intact its business and the goodwill
     of the Hospitals,  the Physicians,  the Target's  employees,  and any other
     Person having business relations with it;

          (d) No  Material  Adverse  Change.  Not  cause or  suffer to exist any
     Material Adverse Change to it;

          (e) No Transaction in Target Shares. Refrain from issuing, purchasing,
     redeeming,  or  otherwise  affecting  any Target  Shares,  any other equity
     securities  of the Target,  or any right to acquire  any equity  securities
     from the Target;

          (f) No  Dividends.  Refrain from  declaring or paying any dividends or
     otherwise  making any  distributions  or transfers to any  Stockholders  in
     their capacities as Stockholders;

          (g) Maintain  Assets.  Maintain its tangible  assets in good order and
     repair;

          (h) Disposition of Assets. Refrain from disposing of, or committing to
     dispose of, any assets, other than the sales of assets involving $10,000 or
     less in any one  transaction or series of related  transactions,  and other
     than as contemplated by Section 4.2(d);

          (i) Borrow Money. Refrain from assuming,  creating,  guaranteeing,  or
     incurring any  indebtedness,  whether  absolute or  contingent,  other than
     indebtedness  incurred in the ordinary  course of its  business  consistent

<PAGE>

     with past practices;

          (j)  Make  Payments.   Promptly  pay  when  due  all  liabilities  and
     obligations of every kind and nature incurred by it;

          (k) Pay Taxes. Timely and accurately file all required Tax returns and
     reports  and  timely pay all Taxes owed with  respect to such  returns  and
     reports;

          (l) No Liens. Refrain from granting any Liens;

          (m) No Changes to  Contracts.  Refrain from  amending,  modifying,  or
     terminating any of its Contracts or other Documents  except as contemplated
     by this Agreement,  including the Target's  articles of  incorporation  and
     by-laws, or entering into any new Document that is material;

          (n) Perform Obligations. Punctually perform all obligations under each
     Contract  and each of its  other  Documents,  and keep each of them in full
     force  and  effect,  free from any right of  cancellation,  forfeiture,  or
     termination;

          (o) Insurance Coverage. Continue in effect all Insurance Policies;

          (p) No Changes in  Accounting  Principles.  Refrain from  changing the
     accounting  principles  used when  maintaining  its  accounting  records or
     presenting its financial  statements,  or otherwise  altering the manner of
     keeping  its  accounts,  books,  or  records,  except  for  converting  its
     accounting basis to the accrual method;

          (q)  Change  Key  Employees.  Refrain  from  hiring,  terminating,  or
     changing any of its  directors,  officers,  or employees  having  senior or
     supervisory positions;

          (r) Compensation.  Except as may be specifically  agreed to in writing
     by the Parent,  refrain  from  increasing  or  promising  to  increase  any
     compensation or benefits that the Target pays to any Person,  including any
     formula upon which any compensation or benefits are based;

          (s)  Employee  Benefit  Plans.  Make full and  timely  payment  of all
     amounts required under each Employee Benefit Plan;

          (t) Loans to Affiliates.  Refrain from making,  changing, or forgiving
     any  loan  between  the  Target  and  any  of  its  Affiliates,  directors,
     employees, Physicians, officers, related parties, or Stockholders; and

          (u) No Agreements Concerning the Foregoing. Refrain from entering into
     any agreement to take any of the actions described in the foregoing clauses
     (a) through (t) of this Section 6.3.

     Section 6.4 Changes to the Information Disclosed on the Schedules. From the
date of this Agreement through the Closing Date:

            (a)  Information on the Schedules.  The Target and the  Stockholders
      shall  promptly  notify the Parent and the  Company of any  changes to the
      information disclosed on any schedule to this Agreement, including changes
      occurring after the date of this Agreement (although such disclosure shall
      not in any way amend or supplement any schedule).

            (b) Representations,  Warranties,  and Covenants. Each party to this
      Agreement  shall  notify  each  other  Party  to  this  Agreement  of  any
      condition,  circumstance,  fact, or other  information  that may cause the
      representations  and warranties of such Party  contained in this Agreement
      to be incorrect or  incomplete at any time prior to the Closing Date as if
      made on and as of any  such  time or cause  such  Party  to be  unable  to
      perform its covenants  contained in this  Agreement that it is required to
      perform  on or  before  the  Closing  Date.  Such  Party  shall  then  use

<PAGE>

      reasonable efforts to prevent or promptly cure any such breach.

      Section 6.5  Satisfaction  of the Closing  Conditions.  The Target and the
Stockholders  shall use their best efforts to cause the  conditions set forth in
Section  4.2 to be  satisfied,  including  the  delivery  to the  Parent and the
Company of all of the Consents.  The Parent and the Company shall use their best
efforts to cause the  conditions  set forth in Section  4.3 to be  satisfied  as
promptly as possible.

      Section 6.6 NASD Filing. At least 15 days before the Closing Date, or such
later date as is permitted by the National  Association  of Securities  Dealers,
the  Parent  shall  list the  Parent  Shares to be  delivered  pursuant  to this
Agreement on the National  Market System.  The Parent shall pay any fee required
with respect to such listing.

      Section 6.7 Form 8-K Financial Statements. The Target and the Stockholders
acknowledge  that within 15 days after the Closing Date,  the Parent must file a
Form 8-K with the Commission disclosing the Sale. With the Form 8-K or within 60
days after the filing of the Form 8-K, the Parent must file with the Commission:
(a) the audited  financial  statements of the Target for the year ended December
31,  1995,  (b) the interim  financial  statements  of the Target for the period
beginning on January 1, 1996 and ending on the Effective  Date if required under
Rule 3-05 of Regulation S-X of the  Commission,  (c) the pro forma balance sheet
of the Parent as of December 31,  1995,  prepared as if the Sale had occurred on
that date, and (d) the pro forma  statements of operations of the Parent for the
fiscal year ended December 31, 1995, and the interim period beginning on January
1, 1996 and ending on the Effective Date if required under Rule 3-05 prepared as
if the Sale occurred as of the beginning of such periods. The Target's financial
statements  for the year ended  December 31,  1995,  are included as part of the
Financial  Statements  described  in  Schedule  5.2(p).  From  the  date of this
Agreement until the Closing Date, the Target shall provide the Certified  Public
Accountants  access to the Target's books and records,  personnel,  and premises
for the purpose of auditing the Target's financial statements for the year ended
December 31, 1995.  The Company shall pay the fees and expenses of the Certified
Public  Accountants for performing such audit, which shall not be reflected as a
liability  of the  Target  on the  Final  Balance  Sheet.  The  Target  and  the
Stockholders   shall  cooperate  with  the  Parent  and  the  Certified   Public
Accountants in connection  with such audit and the  preparation of the pro forma
financial statements.

      Section 6.8 Employee  Notices.  The Target and the Stockholders  shall use
their best efforts to amend each employment agreement between the Target and any
of its employees so that the amended terms of such  agreement are  acceptable to
the Parent and the Company,  which  efforts shall  include,  if requested by the
Company,  causing the Target and each  Physician  to enter into a new  Physician
Contract, in form and substance  satisfactory to the Parent and the Company. The
Target and the Stockholders  shall also be solely  responsible for any notice or
other  requirements  or liabilities  under any Worker  Adjustment and Retraining
Notification  Act or similar state law  implicated by this Agreement or the Sale
or required under any Employee Benefit Plan.

      Section 6.9 No Transfer of Target Shares. From the date of this Agreement,
no Stockholder  shall transfer any of his or her Target Shares.  Moreover,  each
Stockholder shall use its best efforts to support this Agreement and the Sale.

      Section 6.10 Public  Announcements.  The Target and the Stockholders shall
not  issue  any press  release  or make any  public  statement  concerning  this
Agreement or the Sale without  obtaining the prior consent of the Parent and the
Company.  The Target and the Stockholders  acknowledge that the Parent may issue
such press  releases  concerning  this  Agreement  and the Sale as it  considers
appropriate  and may make any filings  that the Parent  considers  advisable  or
necessary  under the  Securities  Act, the  Securities  Exchange Act of 1934, as
amended, or the rules applicable to the National Market System.  Notwithstanding
anything  herein to the contrary,  before  issuing any press release  concerning
this Agreement or the Sale, the Parent shall consult with the Target  concerning
the substance of such press release.
<PAGE>

      Section 6.11 No Shopping.  Unless and until this  Agreement is  terminated
pursuant to Article IX, neither the Target, any Stockholder, or any Affiliate of
either of them shall directly or indirectly  encourage,  solicit,  initiate,  or
participate in any  discussions or  negotiations  with any Person other than the
Parent and the Company concerning any merger,  sale of substantially all assets,
business  combination,  sale of shares of capital stock, or similar  transaction
involving  the Target,  or  directly or  indirectly  disclose  any  Confidential
Information to any Person other than the Parent, the Company, and their advisors
and  representatives.  If the  Target or any  Stockholder  receives  an offer or
inquiry with respect to any of the foregoing types of transactions,  such Person
shall promptly inform the Parent and the Company of such offer or inquiry.

      Section  6.12  Target  Lease.  Upon the  execution  and  delivery  of this
Agreement,  the Target  shall  enter into an  amendment  to the Lease  Agreement
between Kirchoff Limited Partnership and the Target with respect to the premises
that the Target leases at 4215 Kirchoff Road, Rolling Meadows,  Illinois, in the
form of EXHIBIT I (the "Target Lease Amendment").

      Section 6.13 Target  Directors and Officers  Following the Sale.  Promptly
after  consummation  of the Sale,  the Parent and the  Company  shall  cause the
election of the individuals listed on Schedule 6.13 to the offices of the Target
designated  on such  schedule,  provided  that this  Section 6.13 shall not: (a)
confer upon any such individual the right to continued  employment by the Target
following  the Sale,  or (b) affect in any way the  Target's  right to terminate
such individual's employment or remove him or her from office.

      Section 6.14 Pending Negotiations and Execution of Hospital Contracts. The
Target and the Stockholders hereby represent,  warrant and covenant that (a) the
Hospital  Contract  between  the  Target and  Northwest  Community  Hospital  is
currently under renegotiation, that new terms for such Hospital Contract will be
agreed upon within 30 days after the Closing Date, and that the financial  terms
of such contract shall be consistent  with the  presentation of such contract in
the pro forma  financial  information  delivered to the Parent on April 2, 1996,
(b) the Hospital Contract between the Target and St. Elizabeth Hospital shall be
executed within 30 days after the Closing Date.


            VII. COVENANTS NOT TO COMPETE OR DISCLOSE CONFIDENTIAL
                                 INFORMATION

      Section 7.1  Covenant  Not to Compete.  Each  Stockholder  covenants  (the
"Covenant Not to Compete") that, without the prior written consent of the Target
after the Sale, during the Non-Compete Period such Stockholder will not directly
or indirectly:

          (a) Solicit Hospitals and Physicians. Either on his or her own account
     or for any other  Person,  solicit,  induce,  attempt to induce,  interfere
     with, or endeavor to cause: (i) any Hospital to modify,  amend,  terminate,
     or otherwise  alter its Hospital  Contract;  (ii) any  Physician to modify,
     amend,  terminate,  or otherwise  alter his or her Physician  Contract;  or
     (iii) any other physician  engaged by the Service  Corporation or any other
     Affiliate  of the  Parent to  terminate  his or her  arrangement  with such
     Affiliate;

          (b) Provide Emergency Department  Services.  Except for the activities
     described on Schedule 7.1(b), own, manage,  operate, engage in, serve as an
     advisor or  consultant  for,  control,  or otherwise  participate  in or be
     involved as a partner,  guarantor,  or other  holder of an interest in, any
     Person  providing  Emergency  Department  Services in any place  within the
     defined Service Areas for any Hospital as set forth on EXHIBIT J;

          (c) Assist Competitors. Make any statement or perform any act intended
     to advance an interest of any  existing or  prospective  competitor  of the
     Parent or any of its  Affiliates (a  "Competitor"),  or encourage any other
     Person to make any such statement or to perform any such act; and
<PAGE>

          (d) Send Clients to Competitors. Make any statement or perform any act
     intended to cause any existing or potential  client of the Parent or any of
     its  Affiliates  to use  the  services  or  purchase  the  products  of any
     Competitor.

Notwithstanding  any provision herein to the contrary,  if any Hospital Contract
with any Hospital  terminates  for any reason other than default by the Hospital
thereunder, then, nothing herein shall prohibit any Stockholder from engaging in
the  activities  otherwise  prohibited  under Section 7.1(b) at such Hospital or
within the Service Areas described in Section 7.1(b). The covenants agreed to in
this Section 7.1 shall be in addition to, and not a limitation of, any covenants
agreed to by any Stockholder in another contract.

      Section  7.2  Indirect  Competition.  For  purposes of this  Agreement,  a
Stockholder  shall be deemed to be indirectly  competing  against the Parent and
its  Affiliates  if the  Stockholder  or any  of  his or her  Affiliates  owns a
beneficial interest in any Person who provides Emergency  Department Services to
any Hospital or any  Affiliate of any Hospital at any Service Area  described in
Section 7.1(b).  The ownership  restriction  contained in this Section 7.2 shall
not apply to  ownership  as a passive  investor of less than a two percent  (2%)
interest in the outstanding  equity  securities of any publicly held corporation
listed on a national securities exchange or association.

      Section 7.3 No Disclosure of Confidential Information.  Each of the Target
and the  Stockholders,  jointly and  severally,  covenant  (the  "Non-Disclosure
Obligation")  that they will not disclose any  Confidential  Information  at any
time to any Person other than the Parent,  the Company,  and their  advisors and
representatives;  provided  that  with  respect  to any such  disclosure  by any
Stockholder,  each  Stockholder  covenants  only with  respect to his or her own
disclosures.  This  Section 7.3,  however,  shall not preclude the Target or any
Stockholder from:

          (a) Advisors. Disclosing information to its accountants,  lawyers, and
     other professional advisors,  provided that the Target and the Stockholders
     shall be deemed to have breached  this Section 7.3 if any such  accountant,
     lawyer,  or other  professional  advisor  discloses such information to any
     other Person;

          (b) Public Information.  Disclosing information generally available to
     the public other than by breach of this Section 7.3;

          (c) Required by Law. Disclosing  information  required by law or court
     order  after  promptly   notifying  the  Parent  and  the  Company  of  the
     requirement to disclose such information; or

          (d) Tax Returns.  Disclosing information required in any Tax report or
     return.

      Section 7.4 Reasonableness. The Stockholders acknowledge that the terms of
the Covenant Not to Compete and the Non-Disclosure  Obligation are reasonable in
all respects  and  necessary to permit the Parent and the Company to realize the
benefits of the Sale.

      Section 7.5 Judicial Enforcement.  Any breach or violation of the Covenant
Not to Compete or the Non-Disclosure  Obligation shall entitle the Parent or the
Company  to an  injunction  restraining  any  further  or  continued  breach  or
violation. Such right to an injunction shall be in addition to and cumulative of
(and not in lieu of) any other  remedies to which the Parent and the Company are
entitled  because  of  such  breach  or  violation.  If  a  court  of  competent
jurisdiction  determines that the Covenant Not to Compete or the  Non-Disclosure
Obligation are partially or wholly  inoperative,  invalid, or unenforceable in a
particular  case  because  of their  duration,  geographical  scope,  restricted
activity,  or  any  other  parameter,  such  court  may  reform  such  duration,
geographical scope, restricted activity, or other parameter with respect to such
case to permit  enforcement of such reformed Covenant Not to Compete or reformed

<PAGE>

Non-Disclosure Obligation to the greatest extent allowable.

      Section 7.6  Condition to Payments.  Notwithstanding  anything else to the
contrary in this Agreement,  a condition to the obligation of the Parent to make
any Contract Retention Payment, Performance Payment or Incentive Earnout Payment
to the Payment  Agent with respect to the amount  allocable to each  Stockholder
shall be that such  Stockholder  has not violated the Covenant Not to Compete or
the Non-Disclosure Obligation.


                            VIII. INDEMNIFICATION

     Section  8.1   Indemnification   of  the  Parent  and  the   Company.   The
Stockholders,  jointly and severally,  shall indemnify,  defend,  reimburse, and
hold the  Parent,  the  Company,  and each of their  Affiliates  (including  the
Target,  after  the  Sale),  together  with  each of  their  agents,  directors,
employees, officers, and stockholders (collectively,  the "Company Indemnitees")
harmless  from any and all Claims  (other  than Claims  indemnified  pursuant to
Section 8.7) directly or indirectly related or arising with respect to:

          (a) Breaches. Any breach of any representation, warranty, covenant, or
     agreement  of the Target or any  Stockholder  set forth in this  Agreement;
     provided  that with  respect  to  representations  and  warranties  of each
     Stockholder set forth in Section 5.3, each Stockholder shall only be liable
     with  respect  to  any  breach  of  his  or  her  own  representations  and
     warranties;

          (b)  Failure to Perform.  Any  failure  duly to perform or observe any
     term, provision,  covenant, or agreement to be performed or observed by the
     Target or any Stockholder set forth in this Agreement;

          (c) Medical  Malpractice  Claim.  Any medical  malpractice  or similar
     claims against the Target,  any Stockholder,  or any Physician with respect
     to any activity,  condition,  circumstance,  event, or incident existing or
     occurring on or before the Closing Date;

          (d) Physicians.  Any performance or  non-performance of services on or
     before the Closing Date by any  physician  employed or engaged by or on the
     behalf  of the  Target;  provided  that  with  respect  to  performance  or
     non-performance of services by any Stockholder, each Stockholder shall only
     be liable with respect to his or her own performance or  non-performance of
     services;

          (e)  Medicare  and  Medicaid  Audits.  Any  audits or  billings  under
     Medicare,  Medicaid,  CHAMPUS,  or with  respect to any third  party  payor
     arising in connection with any Hospital  Contract or the Target's  business
     for any period on or before the Closing Date; provided that with respect to
     any  audits or  billings  arising  in  connection  with the  actions of any
     Stockholder,  each Stockholder  shall only be liable with respect to his or
     her own  actions;  provided;  further,  that  the  Stockholders'  aggregate
     indemnity  obligation  with respect to this  paragraph (e) shall not exceed
     $1,000,000;

          (f) Violation of Applicable  Law. Any violation of any  Applicable Law
     by the Target,  any  Stockholder,  or any Physician  occurring prior to the
     Closing  Date;   provided  that  with  respect  to  any  violation  by  any
     Stockholder,  each Stockholder  shall only be liable with respect to his or
     her own violations;

          (g)  Employees.  Any  activity,  condition,  circumstance,  event,  or
     incident  existing or  occurring on or before the Closing Date with respect
     to any employee of the Target;  provided that with respect to any activity,
     condition,   circumstance,   event,   or  incident   with  respect  to  any
     Stockholder,  each Stockholder  shall only be liable with respect to his or
     her own activities, conditions, circumstances, events, or incidents;


<PAGE>

          (h) Employee Claims. Any arbitrations,  claims,  demands,  grievances,
     withdrawal  liabilities,  or charges of any nature  whatsoever  made by any
     employees of the Target,  bargaining  agents,  Physicians,  or governmental
     entities arising from any activity,  condition,  circumstance,  or incident
     existing or  occurring  on or before the  Closing  Date or by virtue of the
     Sale;

          (i)  Environmental  Laws.  Any actual or  threatened  violation of any
     Environmental Laws or remedial  obligations arising under any Environmental
     Laws in connection with any activity,  condition,  circumstance,  event, or
     incident  existing or  occurring on or before the Closing Date that relates
     in any way to the Target or any Hospital Contract;

          (j) Employee  Benefit Plans.  Any activity,  condition,  circumstance,
     event or  incident  existing  or  occurring  before the  Closing  Date with
     respect  to  the  administration  of  any  Employee  Benefit  Plan  or  the
     investment of any assets of any Employee Benefit Plan. This indemnity shall
     override and  supersede  any  indemnity  provided by the Target to the plan
     administrator  or plan  trustee  or any  other  fiduciary  of any  Employee
     Benefit Plan of the Target,  whether  contained in the plan  document,  the
     Target's  bylaws or otherwise.  The  Stockholders  further agree to pay the
     necessary premiums to maintain the Target's fiduciary  liability  insurance
     covering any acts or omissions of its employees,  shareholders or directors
     as plan fiduciaries for a period of one year following the Closing Date; or

          (k)  Stockholder  Claims.  Any  condition,  circumstances,  event,  or
     incident  existing or  occurring on or before the Closing Date with respect
     to any former  stockholder  of the  Target,  or any Claims made by any such
     former stockholder against the Target.

The  Stockholders'  aggregate  indemnity  obligation with respect to Section 8.1
(a)-(j) shall not exceed $4,000,000;  provided, further, that each Stockholder's
indemnity obligation with respect to this Section 8.1 shall not exceed one-third
of the total amount of cash consideration  received by such Stockholder pursuant
to the Sale,  plus one-third of the value, as of the Closing Date, of the Parent
Shares received by such Stockholder pursuant to the Sale.

      Section 8.2 Indemnification of the Target and the Stockholders. The Parent
and the Company shall, jointly and severally,  indemnify, defend, reimburse, and
hold the Stockholders and their Affiliates and agents (collectively, the "Target
Indemnitees")  harmless from any and all Claims  (other than Claims  indemnified
pursuant to Section 8.7) directly or indirectly  related or arising with respect
to:

          (a) Breaches. Any breach of any representation, warranty, covenant, or
     agreement of the Parent or the Company set forth in this Agreement;

          (b)  Failure to Perform.  Any  failure  duly to perform or observe any
     term, provision,  covenant, or agreement to be performed or observed by the
     Parent or the Company set forth in this Agreement; or

          (c)  Contracts.  Any  liability  or  obligation  with  respect  to any
     Contract arising after the Closing Date.

      Section 8.3 Indemnification  Procedure.  The  indemnification  obligations
under this  Agreement  (other than  indemnification  obligations  arising  under
Section 8.7) shall be subject to the following procedures:

            (a) Defense of a Claim.  Within five days after receiving  notice of
      any Claim that may give rise to an  indemnification  obligation under this
      Agreement, the party in receipt of such notice shall give each other party
      to this Agreement  written  notice of such Claim,  together with a copy of
      all documents  relating to such Claim that such party  possesses,  and the
      party  or  parties   responsible   for  providing   indemnification   (the
      "Indemnitor")  shall  immediately  undertake  the defense of such Claim by
      representatives  of its own  choosing,  provided  that with respect to any

<PAGE>

      Claim involving medical malpractice,  the Parent may undertake the primary
      defense of such Claim through  representatives  of its own choosing if any
      Stockholder or Physician  named in such Claim has not elected to undertake
      the primary defense of such Claim.

            (b)  Participation  of the  Indemnitee.  If  within  10  days  after
      delivering  notice of a Claim to the Indemnitor (or, if earlier,  prior to
      five days  before an answer or other  pleading  must be served to  prevent
      judgment  by default  in favor of the Person  asserting  the  Claim),  the
      Indemnitor  has not  begun to  defend  against  such  Claim,  the party or
      parties  entitled to  indemnification  (the  "Indemnitee")  shall have the
      right to defend,  compromise,  or settle  such Claim on behalf of, and for
      the  account  and risk of, the  Indemnitor.  Notwithstanding  whether  the
      Indemnitor  commences at anytime to defend against a Claim, the Indemnitee
      shall have the right to participate in such defense by  representatives of
      its own choosing;  provided,  however, that if the Indemnitor commences to
      defend against a Claim, such  participation  shall be at the sole cost and
      expense of the Indemnitee.

            (c) Settlement of Claims. An Indemnitor shall have the right, at its
      own cost and expense, to compromise or settle any Claim,  provided that an
      Indemnitor  shall not  compromise  or settle  any Claim or  consent to the
      entry of any judgment if such compromise, settlement, or judgment does not
      include an unconditional release by the Person asserting the Claim of each
      Indemnitee from all liability with respect to such Claim.

            (d)   Cooperation.  In connection with any indemnity obligation,
      each Indemnitee shall cooperate with all reasonable requests of the
      Indemnitor.

      Section 8.4  Negligence.  The indemnity  obligation  under this  Agreement
shall  be  applicable  whether  or not  negligence  of the  Person  entitled  to
indemnification is alleged or proven.

      Section 8.5 Non-Exclusivity of Remedies.  The indemnity rights provided in
this ARTICLE VIII shall not be the exclusive  remedy available to the parties to
this Agreement.

      Section 8.6 Insurance.  With respect to any events  occurring on or before
the Closing  Date for which the Parent,  the Company and the Target are entitled
to indemnification,  the Parent, the Company and the Target shall be entitled to
the benefits of any applicable  Insurance  Policy to the extent permitted by the
respective insurance company.

      Section 8.7 Tax Indemnification.

            (a)  Stockholders  Liability for Taxes.  The  Stockholders  shall be
      liable for and shall  indemnify the Parent and its  Affiliates  (including
      the  Target  and its  Subsidiaries  after the Sale)  for  Claims  asserted
      directly against, resulting directly to, imposed directly upon or incurred
      or  suffered  directly  by  Parent  and its  Affiliates  as a result of or
      arising from all Taxes (including,  without limitation,  any obligation to
      contribute to the payment of a tax determined on a consolidated,  combined
      or unitary basis with respect to a group of corporations  that includes or
      included the Target or any of the  Subsidiaries)  imposed on the Target or
      any of the Subsidiaries or for which the Target or any of the Subsidiaries
      may  otherwise be liable (i) for any Tax period that ends on or before the
      Closing Date,  (ii) for any Tax period  beginning  before and ending after
      the Closing Date,  but only with respect to the portion of such Taxes that
      relates  to the  portion  of the Tax period  ending on and  including  the
      Effective  Date,  or  (iii)  primarily  attributable  to a  breach  by the
      Stockholders of their obligations under this Agreement,  in each case only
      to the  extent  such  Taxes  are  not  reflected  in the  reserve  for Tax
      liability  (rather  than any reserve for  deferred  Taxes  established  to
      reflect timing differences  between book and Tax income) shown on the face
      of the Final Balance Sheet. For the avoidance of doubt, the  Stockholder's

<PAGE>

      liability  under this  Section  8.7(a)  shall  extend to any Claims of the
      Parent  or  the  Target  for  expenses   incurred  in   responding  to  an
      examination, audit, administrative or court proceeding, or other procedure
      in which a Tax  authority  seeks to  propose  adjustment,  that if pursued
      successfully,  would  give  rise to a  liability  for  Taxes for which the
      Parent  would have a Claim under this  Section  8.7(a),  even if no Tax is
      ultimately payable as a result of such examination,  audit, administrative
      or  court  proceeding,  or  other  procedure.  The  Stockholders  shall be
      entitled to any refund of Taxes (and applicable interest) of the Target or
      the   Subsidiaries   received  with  respect  to  periods  for  which  the
      Stockholders  were liable under this  Section  8.7(a),  provided  that the
      Stockholders shall not be entitled to any refund to the extent such refund
      is  generated  using loss  carrybacks  from  taxable  periods (or portions
      thereof)  beginning  after the Closing Date. For purposes of this Section,
      in the case of any taxes that are not imposed on a periodic  basis and are
      payable for a Tax period that  includes  (but does not end on) the Closing
      Date,  the  portion of such Tax which  relates to the  portion of such Tax
      period ending on the Closing Date shall (x) in the case of any taxes other
      than Taxes  based upon or related to income or  receipts,  be deemed to be
      the amount of such tax for the entire Tax period  multiplied by a fraction
      the  numerator of which is the number of days in the Tax period  ending on
      the Closing Date and the denominator of which is the number of days in the
      entire Tax period, and (y) in the case of any Tax based upon or related to
      income or receipts  (including  franchise  taxes to the extent  based upon
      income,  receipts or earned surplus),  be deemed equal to the amount which
      would be payable if the relevant Tax period ended on the Closing Date.

            (b) Parent's Liability for Taxes. The Parent shall be liable for and
      shall indemnify the  Stockholders  for Claims asserted  directly  against,
      resulting  directly  to,  imposed  directly  upon or  incurred or suffered
      directly by the  Stockholders  as a result of or arising from the Taxes of
      the Target or its  Subsidiaries  for any Tax period that begins  after the
      Closing  Date and,  with  respect to any Tax period  beginning  before and
      ending after the Closing  Date,  the portion of such Taxes that relates to
      the portion of the Tax period  beginning  after the Closing Date.  For the
      avoidance of doubt, the Parent's liability under this Section 8.7(b) shall
      extend  to any  Claims  of  the  Stockholders  for  expenses  incurred  in
      responding to an examination,  audit,  administrative or court proceeding,
      or  other  procedure  in  which  a  Tax  authority  seeks  to  propose  an
      adjustment,  that if pursued successfully,  would give rise to a liability
      for Taxes for which the Stockholders would have a Claim under this Section
      8.7(b),  even  if no  Tax  is  ultimately  payable  as a  result  of  such
      examination,   audit,   administrative  or  court  proceeding,   or  other
      procedure.  The  Parent  shall be  entitled  to any  refund of Taxes  (and
      applicable  interest) of the Target and its  Subsidiaries  received  other
      than refunds of Taxes to which the Stockholders are entitled under Section
      8.7(b).

            (c) Survival.  The indemnity  provided for in this Section 8.7 shall
      be separate and  independent of any other  indemnity  provision  contained
      herein and anything in this  Agreement  to the  contrary  notwithstanding,
      shall  survive  until  the  expiration  of  the  applicable   statutes  of
      limitation, including extensions or waivers thereof referred to above.


                               IX. TERMINATION

      Section 9.1 Termination of this Agreement.  The Parent,  the Company,  and
the Target may abandon or terminate this Agreement under the  circumstances  set
forth below at any time prior to the Closing Date, without the approval of their
respective boards of directors, members, or stockholders:

            (a)   Consent.  The Parent, the Company, and the Target may agree
      in writing to abandon or terminate this Agreement.

            (b)  Breach by the  Target or the  Stockholders.  The Parent and the

<PAGE>

      Company may abandon or terminate  this  Agreement by written notice to the
      Target if: (i) the  representations  and  warranties  of the Target or any
      Stockholder  set forth in this Agreement were incorrect or incomplete,  in
      any material  respect,  as of the date of  execution of this  Agreement or
      will be incorrect or  incomplete  on the Closing Date as though made as of
      such dates, or (ii) the Target or any Stockholder  fails to perform timely
      the  covenants and  obligations  that it is required to perform under this
      Agreement.

            (c) Breach by the Parent or the  Company.  The Target may abandon or
      terminate  this  Agreement by written notice to the Parent and the Company
      if: (i) the  representations  and  warranties of the Parent or the Company
      set forth in this Agreement were incorrect or incomplete as of the date of
      execution of this  Agreement or will be  incorrect  or  incomplete  on the
      Closing  Date as though made as of such  dates,  or (ii) the Parent or the
      Company fail to perform  promptly the covenants and obligations that it is
      required to perform under this Agreement.

            (d) Outside Date. The Parent, the Company, or the Target may abandon
      or terminate this Agreement by written notice to the other parties to this
      Agreement if the Closing Date has not occurred on or before May 1, 1996.

      Section 9.2 Effect of  Termination.  If this  Agreement  is  abandoned  or
terminated  pursuant to Section 9.1(a) or (d), no party to this Agreement  shall
possess  any right  against any other  party to this  Agreement  because of such
termination.  If any of the parties to this Agreement  abandon or terminate this
Agreement other than pursuant to Section 9.1(a) or (d), however, then each party
to this Agreement may pursue any and all remedies that such party may have under
this  Agreement or at law or in equity with respect to this  Agreement  and such
abandonment or termination.

      Section 9.3 Disclosure of this  Agreement.  If this Agreement is abandoned
or terminated for any reason, the Target and the Stockholders shall not disclose
to any  Person  (a) the  contents  of the  negotiations  among the  Parent,  the
Company, the Target, and the Stockholders concerning this Agreement or the Sale,
or (b) the terms of this Agreement.


                                  X. GENERAL

     Section  10.1  Amendment.  No  amendment  or  modification  of  any  of the
provisions of this Agreement shall be effective  unless in writing and signed by
all of the parties to this Agreement.

      Section 10.2  Attorneys'  Fees. If any Lawsuit is commenced to enforce any
provision of this Agreement, the prevailing party to such Lawsuit may receive as
part of any award,  judgment,  decision, or other resolution of such Lawsuit its
costs and attorneys' fees as determined by the person or body making such award,
judgment,  decision,  or  resolution.  Should any claim under this  Agreement be
settled before the  commencement  of a Lawsuit,  the parties in such  settlement
shall be entitled  to include as part of their  alleged  damages the  attorneys'
fees incurred in connection with such claim.

      Section 10.3 Counterparts. This Agreement may be executed in any number of
counterparts, each of which shall be deemed to be an original agreement, but all
of  which  shall  constitute  one and the  same  agreement.  Any  party  to this
Agreement may execute and deliver this  Agreement by an executed  signature page
transmitted by a facsimile machine, provided that such party promptly thereafter
delivers an originally  executed  signature page. Any failure to deliver such an
originally  executed  signature page after delivering an executed signature page
transmitted  by a facsimile  machine,  however,  shall not affect the  validity,
legality, or enforceability of this Agreement.

      Section  10.4  Cumulative  Remedies.   Any  remedy  conferred  under  this
Agreement is not  exclusive of any other  remedy,  and each such remedy shall be
cumulative  and in  addition  to each other  remedy:  (a)  conferred  under this

<PAGE>

Agreement,  and (b) existing  now or  hereafter at law or in equity,  whether by
statute or otherwise.  Moreover, any election of one or more remedies by a party
to this Agreement shall not constitute a waiver of any other available remedies.

      Section  10.5 Tax  Matters.  The  following  provisions  shall  govern the
allocation  of  responsibility  as between the Target and the  Stockholders  for
certain tax matters following the Effective Date:

            (a)  Tax  Periods   Ending  On  or  Before  the  Closing  Date.  The
      Stockholders shall prepare or cause to be prepared and file or cause to be
      filed all Tax Returns for the Target and its  Subsidiaries for all periods
      ending on or prior to the Closing Date. The Stockholders  shall permit the
      Company to review and  comment  on each such Tax Return  described  in the
      preceding  sentence prior to filing.  The Stockholders shall pay all Taxes
      due with respect to such Tax Returns;  provided,  however, that the Parent
      shall  reimburse  the  Stockholders  for  Taxes  of  the  Target  and  its
      Subsidiaries  paid after the  Closing  Date with  respect to such  periods
      within fifteen (15) days after payment by the  Stockholders  of such Taxes
      to the extent such Taxes are  reflected  in the reserve for Tax  liability
      (rather than any reserve for deferred Taxes  established to reflect timing
      differences  between  book and Tax income)  shown on the face of the Final
      Balance Sheet.

            (b) Parent.  The Parent shall cause the Target and its  Subsidiaries
      to  prepare  and  timely  file with the  appropriate  authorities  all Tax
      Returns  required to be filed for the Target and its  Subsidiaries for Tax
      periods  ending  after  the  Closing  Date and to pay all  Taxes  due with
      respect  to  such  Tax  Returns,  provided  that  the  Stockholders  shall
      reimburse  the  Parent (in  accordance  with the  procedures  set forth in
      Section 10.5) for any amount owed by the Stockholders  pursuant to Section
      8.7 with respect to the Tax periods covered by such Tax Returns.

            (c)  Cooperation  on Tax  Matters.  The  Parent,  the Target and its
      Subsidiaries  and the  Stockholders  shall cooperate  fully, as and to the
      extent  reasonably  requested by the other party,  in connection  with the
      filing of Tax Returns  pursuant to this Section and any audit,  litigation
      or other proceeding with respect to Taxes. Such cooperation shall include,
      without limitation, 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 Stockholders agree (A)
      to retain all books and records with  respect to Tax matters  pertinent to
      the Target and its  Subsidiaries  relating to any taxable period beginning
      before the Closing Date until the expiration of the statute of limitations
      (and,  to the extent  notified by the Parent,  the Company or Target,  any
      extensions thereof) of the respective taxable periods, and to abide by all
      record retention  agreements  entered into with any taxing authority,  and
      (B)  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 Stockholders shall allow the other party
      to take possession of such books and records.

            (d)   Tax Consents.

                  (i) If any taxing  authority  proposes  any  adjustment  which
            could,   if  pursued   successfully,   give  rise  to  a  claim  for
            indemnification  against  the  Stockholders  by  the  Parent  or its
            Affiliates  under Section  8.7(a) (a  "Stockholders  Tax Claim"),  a
            Claim for  indemnification  against  the Parent by the  Stockholders
            under Section 8.7(b) (a "Parent Tax Claim"),  or both a Stockholders
            Tax Claim and a Parent  Tax Claim (a "Joint  Tax  Claim"),  then the
            party hereto first receiving  notice of such proposed  adjustment (a
            "Tax  Dispute")  shall  promptly  notify the other  party  hereto in
            writing of such Tax Dispute.


<PAGE>

                  (ii) In case of a Parent Tax Claim,  the Parent shall have the
            right,  at its sole  cost  and  expense,  to  control  the  defense,
            prosecution,  settlement or compromise of the Tax Dispute underlying
            such Parent Tax Claim; provided,  however, that the Parent will not,
            without the Stockholders' prior written consent (which consent shall
            not be unreasonably withheld or delayed),  enter into any settlement
            or compromise of such Tax Dispute.

                  (iii)  In  the  case  of  a   Stockholders   Tax  Claim,   the
            Stockholders shall have the right, at its sole cost and expense,  to
            control the defense,  prosecution,  settlement  or compromise of the
            Tax  Dispute  underlying  such  Stockholders  Tax  Claim;  provided,
            however,  that the Stockholders will not, without the Parent's prior
            written consent (which consent shall not be unreasonably withheld or
            delayed),  enter  into  any  settlement  or  compromise  of such Tax
            Dispute.

                  (iv) In the case of a Joint  Tax  Claim,  the  Parent  and the
            Stockholders  shall first  attempt to separate  such Joint Tax Claim
            into two, one involving the Parent Tax Claim portion  thereof (which
            shall be subject to the provisions of Section  10.5(d)(ii))  and the
            other  involving the  Stockholders  Tax Claim portion thereof (which
            shall be subject to the provisions of Section 10.5(d)(iii)).  If the
            Parent and the Stockholders are not successful in accomplishing such
            separation,  the  Parent  and the  Stockholders  shall  consult  and
            cooperate in good faith with each other in  controlling  such audit,
            examination,   investigation,  or  administrative,  court  or  other
            proceeding,  shall not  compromise  or settle  such  Joint Tax Claim
            without the other's prior written  consent  (which consent shall not
            be unreasonably withheld or delayed),  and shall share the costs and
            expenses  associated  with such  Joint  Tax Claim on such  equitable
            basis as the parties  shall  mutually  agree.  If the Parent and the
            Stockholders  cannot agree with respect to any matter  involving any
            Joint Tax  Claim,  the  Parent and the  Stockholders  shall  jointly
            engage  independent  tax counsel that is mutually  acceptable to the
            Parent and the  Stockholders  to make its  decision  with respect to
            such matter, which decision shall be final and binding on the Parent
            and the Stockholders.  The Parent shall bear and pay one-half of the
            fees and other costs  charged by such  counsel and the  Stockholders
            shall bear and pay  one-half of the fees and other costs  charged by
            such counsel.

                  (v) The party hereto that  controls the Tax Dispute  under the
            provisions of Section 10.5(d)(ii), 10.5(d)(iii) or 10.5(d)(iv) shall
            keep the other party hereto informed of all events and  developments
            relating to such Tax  Dispute,  and the other party  hereto,  or its
            authorized  representatives,  shall be entitled, at its own expense,
            to  attend  (but  not   control)  all   conferences,   meetings  and
            proceedings relating to such Tax Dispute.

                  (vi) Failure to notify a party  hereto of a Tax Dispute  shall
            not relieve such party of any liability which it may have under this
            Section 10.5 except and only to the extent of any damages, including
            without  limitation any material  prejudice to such party's right to
            contest any claim  giving rise to  indemnity  herein,  to such party
            caused by such failure.

            (e) Certain Taxes.  All transfer,  documentary,  sales,  use, stamp,
      registration  and other such Taxes and fees  (including  any penalties and
      interest)  incurred in connection with the Sale pursuant to this Agreement
      shall be paid by the Stockholders when due, and the Stockholders  will, at
      their own expense,  file all necessary Tax Returns and other documentation
      with  respect  to all  such  transfer,  documentary,  sales,  use,  stamp,
      registration and other Taxes and fees, and, if required by applicable law,
      the Parent, the Company and the Target will, and will cause its Affiliates
      to, join in the execution of any such Tax Returns and other documentation.
<PAGE>

     Section 10.6  Definitions.  Capitalized terms not otherwise defined in this
Agreement shall have the meanings set forth below:

            (a) Adjusted Net Income.  The term  "Adjusted Net Income" shall mean
      the net income of the Target derived from the Current  Hospital  Contracts
      (and,  with  respect to Adjusted  Net Income  computed  for the purpose of
      determining  Incentive  Earnout Payments pursuant to Section 2.7 only, any
      potential  hospital  contract  described on Schedule  10.6(a))  determined
      under  generally  accepted  accounting   principles  applied  on  a  basis
      consistent with the Target's past practices,  before any deduction for the
      amortization  of any  goodwill or other  intangible  asset  recognized  in
      connection with the Sale, any interest expense, and any income tax benefit
      or expense. When determining the Adjusted Net Income, only direct overhead
      attributable to the Hospital Contracts shall be deducted. Moreover, if the
      Target  assigns or otherwise  transfers  any Hospital  Contract to another
      Affiliate of the Parent,  the  Adjusted  Net Income  shall  continue to be
      determined as if the Target still held such contract.

            (b) Affiliate.  The term  "Affiliate" with respect to a Person shall
      mean any other Person that directly or indirectly controls,  is controlled
      by, or is under common control with such Person.  The term "control" shall
      mean the  possession,  directly or  indirectly,  of the power to direct or
      cause the  direction  of the  management  and  policies  of such person or
      entity,  whether through the ownership of voting securities,  by contract,
      or otherwise.

            (c)   Alternate Certified Public Accountants.  The term "Alternate 
      Certified Public Accountants" shall mean the firm of Deloitte & Touche.

            (d)  Applicable  Law.  The  term  "Applicable  Law"  shall  mean any
      applicable   decree,   injunction,   judgment,   law,  order,   ordinance,
      regulation,  rule,  statute,  or writ of any  federal,  state,  local,  or
      foreign  governmental  entity (or any  agency,  department,  or  political
      subdivision of any governmental  entity),  including any such law relating
      to: (i) providing  Emergency  Department Services or otherwise relating to
      any hospital or other health care facility,  (ii) practicing medicine,  or
      (iii)  providing  any  product  or  service  with  respect  to  any of the
      activities described in clauses (i) or (ii) of this Section 10.6(d).

            (e)   Business Day.  The term "Business Day" shall  mean a  day that
      is not a Sunday, Saturday, or holiday when banks in the State of Illinois
      are required or permitted to be closed.

            (f)   Certified Public Accountants.  The term "Certified Public
      Accountants" shall mean the firm of Ernst & Young LLP.

            (g) Code.  The term "Code" shall mean the  Internal  Revenue Code of
      1986, as amended by any successor provision of Applicable Law.

            (h) Claim. The term "Claim" shall mean any action, assessment, cause
      of action, charge, claim,  counterclaim,  defense,  demand, expense, fine,
      interest,  inquiry,  investigation,  judgment,  legal action,  litigation,
      liability joint or several), obligation,  payment, penalty, proceeding, or
      suit (including  reasonable  fees and expenses of attorneys,  accountants,
      other   professional   advisors,   and  expert   witnesses  and  costs  of
      investigation and preparation) of any kind or nature whatsoever.

            (i) Confidential  Information.  The term "Confidential  Information"
      shall mean information  concerning:  (i) the Target's assets,  cash flows,
      business, financial condition, operations, or prospects, (ii) the Hospital
      Contracts  and  the  Physician  Contracts,   (iii)  the  contents  of  the
      negotiations  among  the  Parent,   the  Company,   the  Target,  and  the
      Stockholders concerning this Agreement and the Sale, and (iv) the terms of
      this Agreement.


<PAGE>

            (j)   Contract.  The term "Contract" shall mean any Hospital
      Contract, Physician Contract, or Other Contract.

            (k) Document.  The term  "Document" with respect to any Person shall
      mean any agreement,  authorization,  commitment, contract, decree, deed of
      trust, franchise,  instrument,  judgment, lease, license, mortgage, order,
      permit, or other document or obligation to which such Person is a party or
      by which such Person's assets are bound.

            (l) Emergency  Department Services.  The term "Emergency  Department
      Services"  shall  mean  all  services  required  in  connection  with  the
      operation of an emergency department of a health care facility,  including
      but not limited to the  staffing  and  scheduling  of  continuous  24-hour
      emergency physician coverage, the establishment of a schedule of usual and
      customary fees and the administration of such schedule, the maintenance of
      medical records that  adequately  reflect the quality of care rendered and
      instructions  given to patients,  and  maintaining  within such  emergency
      department  the  standards  of  professional  practice as set forth in the
      medical staff bylaws,  rules,  and regulations of the health care facility
      and in accordance with the ethical and professional standards of the Joint
      Commission on Accreditation of Health care Organizations.

            (m) Environmental Law. The term  "Environmental  Law" shall mean any
      applicable federal, state, local, or foreign regulation,  rule, or statute
      relating to an environmental,  health,  industrial hygiene,  pollution, or
      safety  matter,   including  the  Comprehensive   Environmental  Response,
      Compensation and Liability Act.

            (n)  Law  Affecting  Creditors'  Rights.  The  term  "Law  Affecting
      Creditors'  Rights"  shall  mean any  bankruptcy,  insolvency,  fraudulent
      conveyance or transfer, reorganization, moratorium, or other law affecting
      the  enforcement  of creditors'  rights  generally,  including any general
      principles of equity.

            (o)  Lawsuit.  The term  "Lawsuit"  shall mean any  action,  charge,
      claim, counterclaim,  decree, injunction,  inquiry,  investigation,  legal
      action, litigation, order, proceeding, suit, or writ.

            (p) Lien.  The term  "Lien"  shall mean any charge,  claim,  equity,
      judgment, lease, liability,  license, lien, mortgage, pledge, restriction,
      security  interest,  Tax lien,  option,  right of first refusal,  right to
      acquire,  restrictions  (whether  on  issuance,  voting,  sale,  transfer,
      disposition or otherwise) or encumbrance of any kind.

            (q) Material Adverse Change. The term "Material Adverse Change" with
      respect to any Person  shall mean that such  Person has:  (i)  undergone a
      material adverse change with respect to its assets, cash flows,  business,
      financial condition,  operations, or prospects, (ii) breached or defaulted
      under a  material  Document  to which it is a party or by which any of its
      assets  are  bound,  (iii)  become a party to a Lawsuit  that could have a
      significant  and detrimental  effect upon it, or (iv) combined,  split, or
      otherwise reclassified its capital stock or other equity interests.

            (r)  Material  of  Environmental  Concern.  The  term  "Material  of
      Environmental  Concern" shall mean any  contaminate,  substance,  or waste
      that is designated,  listed,  or regulated as hazardous or toxic under any
      Environmental   Law  or  subject  to   remedial   obligations   under  any
      Environmental Law.

            (s) Non-Compete  Period. The term "Non-Compete  Period" with respect
      to any Stockholder shall mean the period beginning on the Closing Date and
      ending on the  later of (i) the third  (3rd)  anniversary  of the  Closing
      Date;  provided that if during any period any  Stockholder is in breach or
      violation of the Covenant Not to Compete,  the Non-Compete Period shall be
      extended by a period equal to the period of such breach or violation.


<PAGE>

            (t) Person.  The term "Person" shall mean an  association,  business
      trust, corporation,  estate, general partnership,  governmental entity (or
      any  agency,  department,  or  political  subdivision  of  a  governmental
      entity), individual, joint stock company, joint venture, limited liability
      company,  limited  partnership,   professional  association,  professional
      corporation, trust, or any other organization or entity.

            (u)  Subsidiary.  The  term  "Subsidiary"  shall  mean  each  Person
      described on Schedule  5.2(f) and any corporation or other entity that has
      at any time within the five (5) year period  preceding the Effective  Date
      joined in the filing of a consolidated  federal income tax return with the
      Target.

            (v) Tax.  The term  "Tax"  shall  mean any  federal,  state,  local,
      foreign,  or other ad valorem,  customs,  documentary,  duty,  employment,
      excise,  franchise,  gross income,  gross receipts,  lease,  license,  net
      income, payroll, premium, profits, property,  occupation,  sales, service,
      service use, stamp,  severance,  transaction privilege,  transfer, use, or
      withholding tax or other assessment,  charge, fee, impost, levy, or tax of
      any kind whatever, together with any related interest and penalties.

            (w) Tax  Return.  The term  "Tax  Return"  shall  mean  any  return,
      declaration,  report, claim for refund, or information return or statement
      relating to Taxes,  including  any  schedule or  attachment  thereto,  and
      including any amendment thereof.

      Section  10.7 Entire  Agreement.  This  Agreement  constitutes  the entire
agreement and  understanding  among the parties to this Agreement and supersedes
all prior agreements and understandings,  both written and oral, with respect to
the subject matter contained in this Agreement.

      Section 10.8  Expenses.  Each party to this  Agreement  shall bear its own
accounting  and legal  fees and other  costs and  expenses  with  respect to the
negotiation and preparation of this Agreement and the  consummation of the Sale.
The  Stockholders  shall bear any Tax imposed in connection with the issuance of
the Parent Shares to them pursuant to this Agreement.

      Section 10.9 Further  Assurances.  Each party to this Agreement  covenants
that it will  execute and deliver to the other  parties to this  Agreement  such
certificates,  documents, and instruments,  and do such acts, as may be required
to carry out the intent and purposes of this Agreement.

     Section  10.10  Governing  Law.  THIS  AGREEMENT  SHALL  BE  CONSTRUED  AND
INTERPRETED  ACCORDING  TO, AND  GOVERNED BY, THE LAWS OF THE STATE OF DELAWARE,
REGARDLESS  OF THE  LAWS  THAT  MIGHT  OTHERWISE  GOVERN  UNDER  THE  APPLICABLE
PRINCIPLES  OF  CONFLICTS  OF LAW OF THE  STATE OF  DELAWARE  EXCEPT  FOR  THOSE
PROVISIONS OF THE ILLINOIS ACT WHICH ARE APPLICABLE  SOLELY TO THE SALE OF STOCK
OF A DOMESTIC ILLINOIS CORPORATION, AS SET FORTH HEREIN, WHICH SHALL BE GOVERNED
BY THE ILLINOIS ACT.

      Section  10.11  Headings.  Article and section  headings  are used in this
Agreement only as a matter of convenience, are not a part of this Agreement, and
shall  not have any  effect  upon the  construction  or  interpretation  of this
Agreement.

      Section  10.12 No  Assignment.  No party to this  Agreement may assign its
benefits or delegate its duties under this  Agreement  without the prior written
consent of each other party to this Agreement, provided that the Company and the
Target (after the Sale) may assign their  respective  rights and delegate  their
respective  duties  under  this  Agreement  to another  Affiliate  of the Parent
without  obtaining  the  consent  of any  other  party to this  Agreement,  and,
notwithstanding  any  provision  herein to the  contrary,  nothing  herein shall
prohibit,  affect or otherwise  impair the ability of the Target to transfer all
or any part of the assets of the Target subsequent to the Effective Date. If the
Company or the Target  assigns  its rights and  delegates  its duties to another
Affiliate  of the Parent,  then the  Company or the Target,  as the case may be,

<PAGE>

shall be released  from all of its  obligations  under this  Agreement  and such
Affiliate shall be responsible for such obligations.

      Section  10.13 No  Third-Party  Beneficiaries.  Except with respect to the
Company Indemnitees,  the Target Indemnitees,  and any permitted assignees, this
Agreement  is solely for the  benefit of the  parties to this  Agreement  and no
other Person shall have any right, interest, or claim under this Agreement.

      Section 10.14 Notices.  All notices and other communications in connection
with this Agreement  shall be in writing and deemed to have been received on the
day of delivery if  delivered  by hand,  overnight  express,  regular  mail,  or
facsimile  transmission,  or three  days  after the date of posting if mailed by
registered  or  certified  mail,  postage  prepaid,  return  receipt  requested,
addressed to each party at its address set forth below (or to such other address
to which  such  party has  notified  each other  party in  accordance  with this
Section 10.14 to send such notices or communications):

      Parent:                       EmCare Holdings Inc.
                                    1717 Main Street, Suite 5200
                                    Dallas, Texas  75201
                                    Attn:  Mr. William F. Miller III
                                    Telephone No. (214) 712-2000
                                    Facsimile No. (214) 712-2041

      Company:                      EmCare Acquisition, Inc.
                                    1717 Main Street, Suite 5200
                                    Dallas, Texas  75201
                                    Attn:  Mr. William F. Miller III
                                    Telephone No. (214) 712-2000
                                    Facsimile No. (214) 712-2041

      Target:                       Medical Emergency Service Associates,
                                    (MESA), S.C.
                                    4215 Kirchoff Road
                                    Rolling Meadows, Illinois 60008
                                    Attn:  Telephone No.
                                    Facsimile No.

      Payment Agent:                Mazzeffi & Company
                                    1435 South Roselle Road
                                    Schaumburg, Illinois 60193
                                    Attn:  Lawrence J. Mazzeffi
                                    Telephone No. (708) 980-5610
                                    Facsimile No. (708) 980-9054

      Stockholder Representative:   Mazzeffi & Company
                                    1435 South Roselle Road
                                    Schaumburg, Illinois 60193
                                    Attn:  Lawrence J. Mazzeffi
                                    Telephone No. (708) 980-5610
                                    Facsimile No. (708) 980-9054

      Section 10.15 Performance on Business Days. If any event or the expiration
of any period  provided for in this Agreement is scheduled to occur or expire on
a day that is not a Business  Day,  such event shall occur or such period  shall
expire on the next succeeding day that is a Business Day.

      Section l0.16 Plural and Singular Words.  Whenever the plural of a word is
used in this Agreement, that word shall, if appropriate, include the singular of
that word.  Whenever the singular of a word is used in this  Agreement that word
shall, if appropriate, include the plural of that word.

      Section 10.17 Pronouns.  Whenever a pronoun of a particular gender is used
in this Agreement,  that pronoun shall, if appropriate,  also refer to the other
gender and the neuter. Whenever a neuter pronoun is used in this Agreement, that
pronoun shall, if appropriate, also refer to the masculine and feminine gender.
<PAGE>

      Section 10.18  Schedules.  All  references in this  Agreement to Schedules
shall mean the schedules  identified in this Agreement,  which are  incorporated
into  this  Agreement  and  shall  be  deemed a part of this  Agreement  for all
purposes. A disclosure of an item in a Schedule or under a heading in a Schedule
corresponding  to a particular  Section or  Subsection of this  Agreement,  or a
separate  disclosure  item within such a Section or  Subsection,  shall not be a
disclosure under: (a) any other Schedule, (b) any other Section or Subsection of
this Agreement, or separate disclosure item within such a Section or Subsection,
or (c) any other  disclosure item of such Schedule.  The Target has delivered to
the Parent and the Company a correct and complete copy of each Document or other
item described on each schedule to this Agreement.


      Section 10.19 Set-Off.  The Parent,  the Company and the Target (after the
Sale) may set-off any amounts that any Stockholder  owes to any of them (whether
because of the breach of any representation,  warranty, or covenant contained in
this Agreement,  any liability arising under Section 8.7, or otherwise)  against
any amounts that the Parent,  the Company or the Target (after the Sale) owes to
any  Stockholder  (including  amounts  owed in the form of  Parent  Shares to be
delivered to the Payment Agent after the Closing Date).

      Section  10.20  Severability.  Any  provision  of this  Agreement  that is
prohibited or unenforceable in any jurisdiction  shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability  (but shall
be construed and given effect to the extent possible),  without invalidating the
remaining   provisions   of  this   Agreement  or  affecting   the  validity  or
enforceability of such provision in any other jurisdiction.

      Section  10.21  Specific  Performance.   The  parties  to  this  Agreement
acknowledge  that the  benefits  that they will  each  derive  from the Sale are
unique and irreplaceable. Accordingly, if any party to this Agreement improperly
abandons or terminates this Agreement, the other parties to this Agreement shall
be entitled to seek an order from a court of  competent  jurisdiction  requiring
such party to perform this Agreement and consummate the Sale.

      Section 10.22  Successors.  This Agreement shall be binding upon and shall
inure to the  benefit  of each  party to this  Agreement  and its  heirs,  legal
representatives,  permitted assigns, and successors,  provided that this Section
10.22  shall not permit the  assignment  or other  transfer  of this  Agreement,
whether by operation of law or otherwise,  if such  assignment of other transfer
is not otherwise permitted under this Agreement.

      Section  10.23  Survivability.   The  agreements,   covenants,   indemnity
obligations,  representations and warranties,  and other terms of this Agreement
applicable to each party to this  Agreement  other than the Target shall survive
the Sale. Any agreements, covenants, indemnity obligations,  representations and
warranties,  and other terms of this  Agreement  applicable  to the Target shall
expire upon consummation of the Sale, and following the Sale any such provisions
for which the Target and the Stockholders were jointly and severally responsible
shall be the joint and several responsibility of the Stockholders only.

      Section 10.24 Waiver.  No provision of this Agreement  shall be considered
waived  unless  such  waiver is in  writing  and  signed  by each  party to this
Agreement that benefits from the enforcement of such provision. No waiver of any
provision in this Agreement,  however,  shall be deemed a waiver of a subsequent
breach of such provision (or right arising under such  provision) or a waiver of
a similar  provision.  Moreover,  a waiver of any breach or a failure to enforce
any term or condition of this Agreement  shall not in any way affect,  limit, or
waive a party's  rights  under  this  Agreement  at any time to  enforce  strict
compliance thereafter with every term and condition of this Agreement.

              [SIGNATURES INTENTIONALLY APPEAR ON THE NEXT PAGE]


<PAGE>


      IN WITNESS  WHEREOF,  each party hereto has executed  and  delivered  this
Agreement as of the date first written above.

                                    PARENT:

Date:  April 30, 1996               EMCARE HOLDINGS INC.

                                    By:    /s/ William F. Miller, III
                                           --------------------------
                                    Name:  William F. Miller, III
                                    Title: President


                                    COMPANY:

Date:  April 30, 1996               EMCARE, INC.

                                    By:    /s/ Leonard M. Riggs, Jr., M.D.
                                           -------------------------------
                                    Name:  Leonard M. Riggs, Jr., M.D.
                                    Title: Chairman
                                    


                                     TARGET:

Date:  April 30, 1996               MEDICAL EMERGENCY SERVICE
                                    ASSOCIATES (MESA), S.C.

                                    By:    /s/ George M. Gallant, M.D.
                                           ---------------------------
                                    Name:  George M. Gallant, M.D.
                                    Title: President


                                    STOCKHOLDERS:

Date:  April 30, 1996              /s/ EUFEMIO BELTRAN, M.D
                                   ------------------------
                                    EUFEMIO BELTRAN, M.D.


Date:  April 30, 1996               /s/ SCOTT BETZELOS, M.D.
                                    ------------------------
                                    SCOTT BETZELOS, M.D.



Date:  April 30, 1996               /s/ BRUCE BRANTMAN, M.D.
                                   ------------------------
                                    BRUCE BRANTMAN, M.D.

<PAGE>


Date:  April 30, 1996               /s/ MARK DEMUS, M.D.
                                   ------------------------ 
                                    MARK DEMUS, M.D.



Date:  April 30, 1996               /s/ MICHAEL FRUMKIN, M.D.
                                   ------------------------
                                    MICHAEL FRUMKIN, M.D.



Date:  April 30, 1996               /s/ GEORGE M. GALLANT, M.D.
                                   ---------------------------- 
                                    GEORGE M. GALLANT, M.D.



Date:  April 30, 1996               /s/ SUSAN GOULD, M.D.
                                   ------------------------ 
                                    SUSAN GOULD, M.D.



Date:  April 30, 1996               /s/ OSCAR HABHAB, M.D.
                                   ------------------------ 
                                    OSCAR HABHAB, M.D.



Date:  April 30, 1996               /s/ BASAVARAJ HARALENNE, M.D.
                                   ------------------------------ 
                                    BASAVARAJ HARALENNE, M.D.



Date:  April 30, 1996               /s/ ROMULO HERNANDEZ, M.D.
                                   ---------------------------- 
                                    ROMULO HERNANDEZ, M.D.



Date:  April 30, 1996               /s/ ANTHONY HORWITZ, M.D.
                                   ---------------------------
                                    ANTHONY HORWITZ, M.D.



Date:  April 30, 1996               /s/ ALEX JABLONOWSKI, M.D.
                                   ---------------------------
                                    ALEX JABLONOWSKI, M.D.



Date:  April 30, 1996               /s/ ARTURO MENESES, M.D.
                                   -------------------------- 
                                    ARTURO MENESES, M.D.



Date:  April 30, 1996               /s/ PHILIP K. NEWMAN, M.D.
                                   ----------------------------
                                    PHILIP K. NEWMAN, M.D.
<PAGE>



Date:  April 30, 1996               /s/ JOLANTA PECKUS, M.D.
                                   -------------------------- 
                                    JOLANTA PECKUS, M.D.



Date:  April 30, 1996               /s/ THOMAS J. PEETERS, M.D.
                                   ---------------------------- 
                                    THOMAS J. PEETERS, M.D.



Date:  April 30, 1996               /s/ NANCY RYAN, M.D.
                                   ------------------------ 
                                    NANCY RYAN, M.D.



Date:  April 30, 1996               /s/ ANIL SHAH, M.D. 
                                   ------------------------
                                    ANIL SHAH, M.D.



Date:  April 30, 1996               /s/ LYMAN TIEMAN, M.D.
                                   ------------------------ 
                                   LYMAN TIEMAN, M.D.



Date:  April 30, 1996               /s/ STANLEY M. ZYDLO, JR., M.D.
                                   --------------------------------- 
                                    STANLEY M. ZYDLO, JR., M.D.



<PAGE>

      EXHIBITS "A" THROUGH "J" AND SCHEDULES "2.10" THROUGH "10.6(a)" HAVE
                           BEEN INTENTIONALLY OMITTED


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