UNILAB CORP /DE/
8-K/A, 1999-01-19
MEDICAL LABORATORIES
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                UNITED STATES SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                  Amendment on
                                   Form 8-K(A)

                                 Current Report

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



       Date of Report: (Date of earliest event reported):  November 5, 1998


                         Unilab Corporation ("Unilab")
             (Exact name of registrant as specified in its charter)



                                   Delaware
                 (State or other jurisdiction of incorporation)


                 33-77286                              95-4415490
           (Commission File Number)                 (I.R.S. Employer
                                                   Identification Number)


      18448 Oxnard Street, Tarzana, California              91356
      (Address of principal executive offices)           (Zip Code)


Registrant's telephone number, including area code:  (818) 996-7300


- ------------------------------------------------------------------------------
(Former name or former address, if changed since last report)







Introductory Note:

         This  Amendment  on Form 8-K(A)  amends the current  Report on Form 8-K
filed by Unilab on November  5, 1998 (the "Form  8-K") with  respect to Unilab's
acquisition  of  substantially  all of the  assets of Meris  Laboratories,  Inc.
("Meris").  This  Amendment  is being filed for the  purposes of  providing  (i)
additional  information  pursuant  to Item 2, (ii) the  consolidated  historical
financial  statements  of the Meris  business  acquired  (the  "Meris  Financial
Information") and (iii) the Unaudited Pro Forma Financial  Information of Unilab
and the notes thereto (collectively, the "Pro Forma Financial Information")

Item 2.           Acquisition or Disposition of Assets

                  (a)       Acquisition

                  Pursuant to an Asset Purchase Agreement, dated as of September
16, 1998 (the "Asset Purchase  Agreement"),  by and between Meris  Laboratories,
Inc., a California  corporation  ("Meris")  and Unilab  Corporation,  a Delaware
corporation  ("Unilab" or the  "Company"),  effective as of November 5, 1998 the
Company  acquired   substantially  all  of  the  assets  of  Meris  (the  "Meris
Acquisition").  The purchase price for the Meris Acquisition  consisted of a $14
million  convertible  subordinated  note ("the Note") and the incurrence of $2.5
million of liabilities  payable to Meris in equal  installments  over 72 months.
The Note has an 8-year term with a $3.00 per share conversion price, and bears a
7.5%  interest  rate.  In  addition  to  the  customer  list,   Unilab  acquired
approximately  $6.5 million of assets, the majority of which were trade accounts
receivable.

                  The  shares of Unilab  common  stock  into  which the Note are
convertible is subject to a  Registration  Rights  Agreement,  dated November 5,
1998.

                  The Asset  Purchase  Agreement is attached as Exhibit 2.1, the
Note is  attached  as  Exhibit  2.2 and the  Registration  Rights  Agreement  is
attached as Exhibit 2.3. Each such agreement is incorporated by reference in its
entirety herein and the description of each such Agreement  contained  herein is
qualified in its entirety by reference to such agreement.

                  (a)      Source of Funds

                  The consideration  for the Meris Acquisition  consisted of the
Note,  plus the  incurrence of certain  payments over a 72-month  period. Unilab
intends to make these monthly  payments from cash on hand.  Unilab  believes its
cash flows will be sufficient to make such payments on a timely basis.

                  (b)      Equipment or Other Physical Property

                  Certain  of the  assets  of  Meris  acquired  by  the  Company
pursuant to the Asset Purchase Agreement  constitute equipment or other physical
property.  Such  assets  were  used by Meris in  conjunction  with its  clinical
laboratory testing business.  The Company intends to continue  substantially the
same use for such acquired assets.

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

                  (a)       Financial Information of Business Acquired

                  Attached   hereto  as  Exhibit   99.1  is  the  Meris
                  Financial Information.

                  (b)       Pro Forma Financial Information.

                  Attached hereto as Exhibit 99.2 is the Pro Forma Financial
                  Information.

                  (c)      Exhibits.

                   2.1     Asset Purchase Agreement
                   2.2     Note
                   2.3     Registration Rights Agreement
                  99.1     Meris Financial Information
                  99.2     Pro Forma Financial Information.


<PAGE>




                                INDEX OF EXHIBITS


                                                     Exhibits          Page

Asset Purchase Agreement                                 2.1

Convertible Note                                         2.2

Registration Rights Agreement                            2.3

Meris Financial Information                             99.1

Pro Forma Financial Information                         99.2






<PAGE>



                                    SIGNATURE



         Pursuant  to the  requirements  of the  Securities  Exchange  Act 1934,
Unilab Corporation has duly caused this Report to be signed on its behalf by the
undersigned thereunto duly authorized.

Dated:   January 18, 1999          UNILAB CORPORATION



                                   By:    /s/   Brian D. Urban
                                   Name:  Brian D. Urban
                                   Title: Executive Vice President,
                                          Chief Financial Officer and Treasurer


<PAGE>


                            ASSET PURCHASE AGREEMENT


                                 By and Between
                               UNILAB CORPORATION,
                                    as Buyer


                                       and

                            MERIS LABORATORIES, INC.
                        Debtor and Debtor-in-Possession,
                                    as Seller



                         Dated as of September 16, 1998




<PAGE>





                                TABLE OF CONTENTS
                                                                        Page

ARTICLE I.   DEFINITIONS; INTERPRETATIONS..................................1
         1.1   Definitions.................................................1
         1.2   Interpretation..............................................6

ARTICLE II.   PURCHASE AND SALE OF ASSETS..................................6
         2.1   Purchase and Sale of Assets.................................6
                (a)   Leasehold Property...................................7
                (b)   Tangible Personal Property...........................7
                (c)   Inventory............................................7
                (d)   Accounts Receivable..................................7
                (e)   Computer System......................................7
                (f)   Books, Records and Written Materials.................7
                (g)   Supplier and Advertising Materials...................7
                (h)   Customer List........................................8
                (i)   Intellectual Property Rights.........................8
                (j)   Goodwill.............................................8
                (k)   Assumed Contracts....................................8
                (l)   Permits and Approvals................................8
                (m)   Prepaid Expenses.....................................8
                (n)   Seller's Warranties..................................8
                (o)   Insurance Policies and Proceeds......................8
                (p)   Testing Orders.......................................9
                (q)   Other Assets.........................................9
         2.2   Excluded Assets.............................................9
                (a)   Cash.................................................9
                (b)   Retained Expenses....................................9
                (c)   Retained Accounts Receivable.........................9
                (d)   Corporate Records....................................9
                (e)   Claims...............................................9
                (f)   Certain Contracts....................................9
                (g)   Settlement Agreement.................................9
                (h)   Tax Attributes......................................10
         2.3   Inspections; Warranties as to Condition....................10
         2.4   Remittance Obligation......................................10
ARTICLE III.   LIABILITIES................................................10
         3.1   Retention of Liabilities...................................10
                (a)   Pre-Closing.........................................10
                (b)   Employees...........................................11
                (c)   Indebtedness........................................11
                (d)   Litigation..........................................11
                (e)   Product, Environmental and Safety-Liability.........11
                (f)   Taxes...............................................11
                (g)   Liabilities Relating to Excluded Assets.............11
                (h)   Government Settlement Agreement.....................11
                (i)   Assumed Contracts...................................12
         3.2   Assumed Liabilities........................................12
                (a)   Assumed Contracts...................................12
                (b)   Repair Obligations..................................12
                (c)   Transferred Permits.................................12
                (d)   Retained Employees..................................12

ARTICLE IV.   PURCHASE PRICE..............................................12
         4.1   Purchase Price.............................................12
                (a)   Convertible Note....................................13
                (b)   Cash Payment........................................13
         4.2   Purchase Price Adjustment..................................13
         4.3   Prorations and Reimbursements..............................13
                (i)   Utility Charges.....................................13
                (ii)   Fee Payments.......................................13
                (iii)   Tax Payments......................................13
         4.4   Transfer Taxes.............................................14

ARTICLE V.   CLOSING......................................................14
         5.1 Closing......................................................14
         5.2   Documents to be Delivered by Seller........................14
                (a)   Resolutions and Actions.............................14
                (b)   Bankruptcy Court Orders.............................14
                (c)   Bill of Sale and Assignment and Assumption Agreement.14
                (d)   Assignment of Intellectual Property.................14
                (e)   Certificate Regarding Conditions....................15
                (f)   Incumbency Certificates.............................15
                (g)   Good Standing Certificates..........................15
                (h)   Opinion of Counsel for Seller.......................15
                (i)   Registration Rights Agreement.......................15
         5.3   Documents to be Delivered by Buyer.........................15
                (a)   Resolutions.........................................15
                (b)   Certificate Regarding Conditions....................15
                (c)   Bill of Sale and Assignment and Assumption Agreement..15
                (d)   Convertible Note.....................................15
                (e)   Good Standing Certificate............................15
                (f)   Incumbency Certificate...............................16
                (g)   Opinion of Counsel for Buyer.........................16
                (h)   Registration Rights Agreement........................16

ARTICLE VI.   REPRESENTATIONS AND WARRANTIES...............................16
         6.1   Representations and Warranties of Seller....................16
                (a)   Organization and Standing; Power and Authority.......16
                (b)   Title to the Acquired Assets. Etc....................16
                (c)   Assumed Contracts....................................17
                (d)   Receivables..........................................17
                (e)   Regulatory Compliance................................17
                (f)   Brokers, Finders and Agents..........................17
                (g)   Intellectual Property................................18
                (h)   Permits..............................................18
                (i)   Labor Matters........................................19
                (j)   Environmental and Safety Compliance..................19
                (k)   Underground Storage Tanks............................19
                (l)   Approvals............................................20
                (m)   Books and Records....................................20
                (n)   Copies of Documents..................................20
                (o)   Investment Purpose...................................20
                (p)   Accredited Investor Status...........................20
                (q)   Reliance on Exemptions...............................20
                (r)   No Governmental Review...............................20
                (s)   Transfer or Resale...................................21
                (t)   Legends..............................................21
                (u)   No Material Misstatements............................22
                (v)   Litigation...........................................22
                (w)   Conflicts; Defaults..................................22
                (x)   Insurance............................................23
         6.2   Representations and Warranties of Buyer.....................23
                (a)   Organization and Standing; Corp Power and Authority...23
                (b)   Conflicts; Defaults..................................23
                (c)   Issuance of Convertible Note.........................24
                (d)   SEC Documents; Financial Statements..................24
                (e)   No Integrated Offering...............................25
                (f)   Brokers, Finders and Agents..........................25
                (g)   Litigation...........................................25
                (h)   Capitalization.......................................25
                (i)   Absence of Certain Changes...........................26
                (j)   Title................................................26
                (k)   Insurance............................................26
                (l)   Permits..............................................26

ARTICLE VII.   CONDITIONS TO CLOSING.......................................26
         7.1   Conditions to Buyer's Obligations...........................26
                (a)   Sales Procedures Order...............................27
                (b)   Sale Order...........................................27
                (c)   Representations and Warranties.......................27
                (d)   Covenants............................................27
                (e)   Material Adverse Effect..............................27
                (f)   No Injunction........................................27
                (g)   Certificate of Seller................................27
                (h)   Hart-Scott-Rodino....................................28
                (i)   Berkeley Leases......................................28
                (j)   Leases...............................................28
                (k)   Other Documents......................................28
         7.2   Conditions to Seller's Obligations..........................28
                (a)   Sales Procedures Order...............................28
                (b)   Sale Order...........................................28
                (c)   Representations and Warranties.......................28
                (d)   Covenants............................................28
                (e)   No Injunction........................................29
                (f)   Certificate of Buyer.................................29
                (g)   Hart-Scott-Rodino....................................28
                (h)   Other Documents......................................29

ARTICLE VIII. COVENANTS OF SELLER..........................................29
         8.1   Bankruptcy Court Matters....................................29
                (a)   Sales Procedures Order; Sale Order...................29
                (b)   Objections...........................................29
                (c)   Appeals..............................................30
                (d)   Compliance with Orders...............................30
         8.2   Termination Fee.............................................30
         8.3   Conduct of Business.........................................30
                (a)   Sale of Assets.......................................30
                (b)   Commitments..........................................31
                (c)   Contract Rights, Etc.................................31
                (d)   Encumbrances.........................................31
                (e)   Representations and Warranties.......................31
         8.4   Access; Information; Permits................................31
                (a)   Access...............................................31
                (b)   Current Information..................................31
         8.5   Closing.....................................................32
         8.6   Confidentiality.............................................32
         8.7   Inventories.................................................32
         8.8   No Shopping or Disclosure...................................32
         8.9   HSR Act.....................................................33
         8.10   Tail Insurance.............................................33
         8.11   Audited Financial Statements...............................33

ARTICLE IX.   COVENANTS OF BUYER...........................................33
         9.1   Representations and Warranties..............................33
         9.2   Confidentiality.............................................34
         9.3   Closing.....................................................34
         9.4   Reservation of Shares.......................................34
         9.5   Financial Information.......................................34
         9.6   Default in Cash Payment.....................................34
         9.7   HSR Act.....................................................34

ARTICLE X.   CERTAIN ADDITIONAL COVENANTS..................................35
         10.1   Expenses; Bulk Sales.......................................35
         10.2   Press Releases.............................................35
         10.3   Employee Matters...........................................35
                (a)   Employee Benefits....................................35
                (b)   Employment at Closing................................35
                (c)   Employee Information.................................36
         10.4   Customer List..............................................36
         10.5   Further Assurances.........................................36
ARTICLE XI.   INDEMNITY....................................................36
         11.1   Indemnification by Buyer...................................36
         11.2   Indemnification by Seller..................................37

ARTICLE XII.   TERMINATION.................................................37
         12.1   Termination................................................37
                (a)   Mutual Consent.......................................37
                (b)   Sellers' Misrepresentation or Breach.................37
                (c)   Accession Termination Event..........................37
                (d)   Buyer Misrepresentation or Breach....................38
                (e)   Failure to Consummate Sale...........................38
         12.2   Effect of Termination......................................38

ARTICLE XIII.   MISCELLANEOUS..............................................38
         13.1   Survival...................................................38
         13.2   Amendments.................................................38
         13.3   Matters Relating to Accounts Receivable, Etc...............38
         13.4   Entire Agreement...........................................39
         13.5   Governing Law..............................................39
         13.6   Notices....................................................39
         13.7   Counterparts...............................................40
         13.8   Assignment.................................................40
         13.9   Waivers....................................................41
         13.10   Third Parties.............................................41
         13.11   Schedules and Exhibits....................................41
         13.12   Headings..................................................41
         13.13   Effective Time............................................41
         13.14   Absence of Breach.........................................41
         13.15.   Access to Records........................................41


<PAGE>



                                    SCHEDULES


2.1(a)                  Leasehold Property
2.1(b)                  Tangible Personal Property
2.1(i)                  Intellectual Property
2.1(k)                  Assumed Contracts
2.1(l)                  Permits
2.2(b)                  Excluded Prepaid Expenses
2.2(c)                  Excluded Accounts Receivable
2.2(e)                  Excluded Claims
6.1(b)                  Permitted Liens
6.1(c)                  Material Contracts
6.1(d)                  Accounts Receivable
6.1(e)                  Regulatory Compliance
6.1(i)                  Labor Matters
6.1(j)                  Environmental and Safety Compliance
6.1(k)                  Underground Storage Tanks
6.1(v)                  Litigation
6.2(h)                  Capitalization
6.2(i)                  Certain changes
6.2(j)                  Title
7.1(i)                  Berkeley Leases
7.1(j)                  Transition Leases


                                    EXHIBITS
Exhibit A               Convertible Note
Exhibit B               Registration Rights Agreement
Exhibit C               Sales Procedures Order
Exhibit D               Agreement Not To Solicit






                            ASSET PURCHASE AGREEMENT

                  THIS ASSET PURCHASE AGREEMENT, dated as of September 16, 1998,
is made by and between UNILAB CORPORATION, a Delaware corporation (the "Buyer"),
and MERIS LABORATORIES,  INC., a California corporation, as debtor and debtor in
possession (the "Seller").


                                               W I T N E S S E T H:

                  WHEREAS,  Seller is engaged in the business of providing
clinical  laboratory  testing  services (the "Business");

                  WHEREAS,  on November 18, 1997,  Seller commenced a bankruptcy
case, Case No. LA 97-54128-ER (the "Chapter  11 Case"),  under  chapter 11 of
Title 11 of the United  States  Code,  11 U.S.C.  ss.ss. 101,  et seq.  (the
"Bankruptcy  Code") in the United States  Bankruptcy  Court for the Central
District of California (the "Bankruptcy Court");

                  WHEREAS,  Seller  continues  to operate its  business as
debtor in  possession  in the Chapter 11 Case;

                  WHEREAS,  Seller desires to sell, assign, convey, transfer and
deliver  ("Transfer")  upon the terms and subject to the conditions set forth in
this Agreement the Acquired Assets (as hereinafter defined) to Buyer;

                  WHEREAS, Buyer desires to purchase and acquire from Seller all
of Seller's  right,  title and interest in the Acquired Assets and in connection
therewith Buyer is willing to assume certain  liabilities of the Seller relating
to the  Business,  all on the terms and subject to the  conditions  set forth in
this Agreement;

                  NOW, THEREFORE,  in consideration of the premises,  the mutual
covenants  herein  contained  and other  good and  valuable  consideration  (the
receipt and sufficiency of which are hereby  acknowledged),  the parties hereto,
subject to the terms and conditions contained herein, hereby agree as follows:


                     ARTICLE I. DEFINITIONS; INTERPRETATIONS

                  1.1 Definitions. As used in this Agreement the following terms
have the indicated meanings:

                  "1934 Act" shall have the meaning set forth in Section 6.2(d).

                  "1933 Act" shall have the meaning set forth in Section 6.1(o).

                  "Affiliate"  means any Person  that  directly,  or  indirectly
through one or more entities,  controls or is controlled by, or is under control
with, the Person specified.

                  "Agreement" means this Asset Purchase Agreement, including the
Exhibits and Schedules hereto.

                  "Accession"  means the  receipt  and  log-in by the  Seller or
Buyer, as the case may be, from a client of a specimen of blood, tissue or urine
for  clinical  laboratory  testing  by the  Seller or Buyer,  respectively.  For
purposes of clarification, it is acknowledged that a single Accession may result
in multiple individual tests.

                  "Accession  Reduction" means, with respect to any period,  the
amount,  if any, by which (a) the Base Average Daily Accessions  exceeds (b) the
Subsequent Average Daily Accessions in respect of such period.

                  "Accession  Reduction  Percentage"  means, with respect to any
period,  the  quotient,  expressed as a  percentage,  equal to (a) the Accession
Reduction  for such  period  divided by (b) the Base  Average  Daily  Accession,
rounded down to the nearest whole number.

                  "Accession  Termination  Event" means, for any two week period
ending on or after  November 2, 1998,  the  existence of an Accession  Reduction
Percentage measured with respect to such period greater than ten (10%) percent.

                  "Acquired Assets" shall have the meaning set forth in 
Section 2.1.

                  "Antitrust Division" shall have the meaning set forth in
Section 8.9.

                  "Assumed Contracts" shall have the meaning set forth in
Section 2.1(k).

                  "Assumed Liabilities" shall have the meaning set forth in
Section 3.2.

                  "Average Daily Accessions" means, for any period, the quotient
equal to (a) the total number of  Accessions  of the Seller on the Business Days
during  such  period  divided by (b) the number of  Business  Days  during  such
period.

                  "Average Daily Unilab  Accessions"  means, for any period, the
quotient  equal  to (a) the  total  number  of  Accessions  of the  Buyer on the
Business  Days during such period from  customers  that were,  as of the date of
this Agreement,  customers of Seller and not Buyer, divided by (b) the number of
Business Days during such period.

                  "Bankruptcy Code" shall have the meaning set forth in the
recitals.

                  "Bankruptcy Court" shall have the meaning set forth in the
recitals.

                  "Base  Average  Daily  Accessions"  means  the  Average  Daily
Accessions for the thirty day period ending on September 19, 1998.

                  "Business" shall have the meaning set forth in the recitals.

                  "Business  Day"  means any day  except a  Saturday,  Sunday or
other day on which  commercial  banks in the City of New York are  authorized by
law to close.  Notwithstanding  the  foregoing,  the  following  days  shall not
constitute Business Days:  September 8 through 11, 1998, November 23 through 27,
1998 and December 21 through 31, 1998.

                  "Buyer" shall have the meaning set forth in the preamble.

                  "Buyer Agreements" shall have the meaning set forth in
Section 6.2(a).

                  "Buyer  Material  Adverse  Effect"  means an occurrence of any
event  or  condition  that  would  (i) have a  material  adverse  effect  on the
transactions   contemplated  hereby,  (ii)  adversely  affect  the  validity  or
enforceability  of,  or the  authority  or  ability  of  Buyer  to  perform  its
obligations  under,  this Agreement,  the  Registration  Rights  Agreement,  the
Convertible  Note or any of the  documents  contemplated  herein or (iii) have a
material  adverse  effect on the  business,  financial  condition  or results of
operations of Buyer and its subsidiaries taken as a whole or the use by Buyer of
its assets.

                  "Cash Payment" shall have the meaning set forth in Section 
4.1(b).

                  "Chapter 11 Case" shall have the meaning set forth in the 
recitals.

                  "Claim" shall have the meaning set forth in Section  101(5) of
the Bankruptcy  Code and shall  include,  without  limitation,  any claim of any
Governmental Authority relating to any violation of any law.

               "Closing" shall have the meaning set forth in Section 5.1.

               "Closing Date" shall have the meaning set forth in Section 5.1.

               "Common Stock" means the common stock, par value $.01 per 
share, of Buyer.

                  "Conversion  Shares" means the shares of Common Stock issued 
upon  conversion of the  Convertible
Note.

                  "Convertible Note" shall have the meaning set forth in 
Section 4.1(a).

                  "Customer List" shall have the meaning set forth in 
Section 2.1(h).

                  "Employee  Liabilities"  means any payments or liabilities for
wages or compensation,  and payments or liabilities relating to or arising under
severance,   bonus,  retirement,   pension,  insurance,   medical,   disability,
profit-sharing or deferred  compensation plans or agreements,  employee vacation
or health benefits,  paid time off, state and federal civil rights or employment
laws, including, without limitation, the Age Discrimination in Employment Act of
1967,  Title  VII of the  Civil  Rights  Act of  1964,  and the  Americans  with
Disability  Act of 1991,  any  employee  pension,  benefit or welfare  plan,  as
defined in the Employee  Retirement Income Security Act of 1974, as amended,  or
any other severance,  bonus, stock option,  stock appreciation,  stock purchase,
retirement,  insurance, pension, profit-sharing,  deferred compensation or other
similar plan, agreement or arrangement.

                  "Employees" means any persons employed in the Business at any 
time prior to the Closing Date.

                  "Environmental Law" shall have the meaning set forth in 
Section 6.1(j).

                  "Excluded Assets" shall have the meaning set forth in
Section 2.2.

                  "FTC" shall have the meaning set forth in Section 8.9.

                  "Governmental  Authority"  means any court,  any  governmental
body,  department,  agency  or  instrumentality,  or  any  other  regulatory  or
administrative agency or commission, domestic or foreign.

                  "Hazardous Materials" shall have the meaning set forth in
Section 6.1(j).

                  "HSR Act" shall have the meaning set forth in Section 6.1(l).

                  "Intellectual Property Rights" shall have the meaning set 
forth in Section 2.1(i).

              "Inventory" shall have the meaning set forth in Section 2.1(c).

                  "Leases" shall have the meaning set forth in Section 2.1(a).

                  "Liens"  means  any  and  all  mortgages,   pledges,  security
interests,  encumbrances,  liens,  offset,  recoupments  or  charges of any kind
whatsoever.

                  "Permits"  means  licenses  from  a  Governmental   Authority,
permits, approvals, franchises, authorizations, variances, waivers or consents.

                  "Permitted Liens" shall have the meaning set forth in 
Section 6.1(b).

                  "Person"  means any natural  person or any entity,  including,
without limitation,  any limited liability company,  trust,  corporation,  joint
stock  association,  partnership,  firm,  sovereign entity,  government or other
entity (including Governmental Authorities).

                  "Prepaid Expenses" shall have the meaning set forth in 
Section 2.1(m).

                  "Purchase Price" shall have the meaning set forth in 
Section 4.1.

                  "Purchase Price Reduction  Amount" means,  upon the occurrence
of a Purchase  Price  Reduction  Event,  the amount set forth in the chart below
opposite  the actual  Accession  Reduction  Percentage  for the two week  period
ending two days prior to the Closing Date:

         Accession Reduction Percentage     Purchase Price Reduction Amount

                      3%                              $500,000
                      4%                               710,000
                      5%                               920,000
                      6%                             1,130,000
                      7%                             1,340,000
                      8%                             1,550,000
                      9%                             1,760,000
                      10% or greater                 2,000,000

                  "Purchase  Price  Reduction  Event" means the  existence of an
Accession Reduction Percentage, for the two week period ending two days prior to
the Closing Date, equal to or greater than three (3%) percent.

                  "Records" shall have the meaning set forth in Section 2.1(f).

                  "Registration  Rights Agreement" means the Registration Rights
Agreement, dated the Closing Date, by and between Buyer and Seller substantially
in the form of Exhibit B hereto.

                  "Retained Employees" shall have the meaning set forth in 
Section 10.3(b).

                  "Retained Liabilities" shall have the meaning set forth in 
Section 3.1.

                  "Rule 144" shall have the meaning set forth in Section 6.1(s).

                  "Sale Order" shall have the meaning set forth in 
Section 7.1(b).

                  "Sale Procedures Order" shall have the meaning set forth in 
Section 7.1(a).

                  "SEC" means the United States Securities and Exchange 
Commission

                  "SEC Documents" shall have the meaning set forth in 
Section 6.2(d).

                  "Securities" means the Convertible Note and the Conversion
Shares.

                  "Seller" shall have the meaning set forth in the preamble.

                  "Seller Agreements" shall have the meaning set forth in 
Section 6.1(a).

                  "Seller  Material  Adverse Effect" means the occurrence of any
event or  condition  between  the date  hereof  and the  Closing  Date  that (a)
constitutes  a breach of the  covenants  set forth in Section 8.3 hereof that is
material  and  adverse to the  results of  operations,  financial  condition  or
business of the Seller,  taken as a whole, or (b) materially  impairs the use or
ownership  by Seller of the  Acquired  Assets,  taken in the  aggregate,  or the
ability of the  parties to  consummate  the  transactions  contemplated  by this
Agreement.

                  "Subsequent  Average Daily Accessions"  means, for any period,
the sum of (a) the Average Daily Accessions for such period plus (b) the Average
Daily Unilab Accessions for such period .

                  "Termination Fee" shall have the meaning set forth in 
Section 8.2.

                  "Transfer" shall have the meaning set forth in the recitals.

                  "Transferred Permits" shall have the meaning set forth in 
Section 2.1(l).

                  "WARN" means the Worker Adjustment Retraining and Notification
Act,  as  amended,  and any other  successor  statute  of  similar  import,  and
regulations thereunder, in each case as in effect from time to time.

                  1.2  Interpretation.  In this  Agreement,  unless the  context
otherwise requires:

                  (a)      the singular includes the plural and vice versa;

                  (b)      reference to any Person includes such Person's
permitted successors and assigns;

                  (c) reference to any  agreement  (including  this  Agreement),
         document or instrument means such agreement,  document or instrument as
         amended or modified and in effect from time to time in accordance  with
         the terms thereof and, if applicable, the terms hereof;

                  (d)  reference to any Schedule or Schedules  hereto means such
         Schedule  or  Schedules  as it or they may be updated  or  supplemented
         pursuant to Section 13.11;

                  (e)  "hereof,"  "hereto" and words of similar  import shall be
         deemed  references  to  this  Agreement  as a  whole  and  not  to  any
         particular Section hereof;

                  (f)   "including"   means  including   without   limiting  the
         generality of any description preceding such term; and

                  (g) with respect to the  determination  of any period of time,
         "from" means "from and including" and "to" means "to but excluding."


                     ARTICLE II. PURCHASE AND SALE OF ASSETS

                  2.1 Purchase and Sale of Assets. Upon the terms and subject to
the  conditions  contained  herein,  and on the  basis  of the  representations,
warranties,  covenants,  obligations and agreements set forth in this Agreement,
at the Closing,  Seller shall  Transfer to Buyer,  and Buyer shall  purchase and
acquire from Seller, the following assets,  properties,  rights and interests of
Seller, as the same shall exist as of the Closing Date (such assets, properties,
rights and interests being hereinafter collectively called "Acquired Assets"):

                  (a) Leasehold  Property.  All leases and subleases of real and
         personal  property  listed and  described on Schedule  2.1(a)  attached
         hereto (the "Leases") together with Seller's interests in all leasehold
         and other improvements thereon;

                  (b) Tangible  Personal  Property.  All of Seller's  machinery,
         equipment (including laboratory  equipment),  tools,  furniture,  motor
         vehicles,  and other tangible  personal  property,  including,  without
         limitation, all tangible personal property set forth on Schedule 2.1(b)
         attached hereto;

                  (c)  Inventory.  All  of  Seller's  inventories  of  products,
         work-in-process,  finished goods, raw materials, and testing laboratory
         related materials, supplies and parts (collectively, "Inventory");

                  (d)  Accounts  Receivable.  Except  as set  forth on  Schedule
         2.2(c)  hereto,   all  accounts  and  notes  receivable  of  and  other
         indebtedness  owed to Seller on the  Closing  Date and any  security or
         collateral  relating  thereto,   including,   without  limitation,  any
         payments due to Seller from any Governmental  Authority or other Person
         pursuant to any governmental or private reimbursement programs;

                  (e)  Computer  System.   All  computers,   computer   systems,
         hardware,  software  (to the  extent  transferable),  programs  (to the
         extent transferable), disks, peripherals and related items;

                  (f) Books, Records and Written Materials.  Except as set forth
         in  Section  2.2(d),  all of  Seller's  books,  documents  and  records
         (including  any of such records  produced by third parties for Seller),
         including,  without  limitation,  all medical case records  (including,
         without  limitation,  PAP  records  and  slides  and  chain of  custody
         records), files,  correspondence,  production,  inventory,  accounting,
         financial and employment records, technical, accounting,  manufacturing
         and  procedural  manuals,  studies,  reports or  summaries  relating to
         environmental matters,  invoices, forms, designs,  diagrams,  drawings,
         data, records and any confidential or other business  information which
         has been reduced to writing or other medium  (including  computer disk)
         (collectively, "Records");

                  (g)      Supplier and Advertising  Materials. All of Seller's
         supplier, marketing, promotional and advertising materials, including,
         without limitation, all catalogs, brochures, plans, supplier lists,
         manuals, handbooks, labels and packaging;

                  (h) Customer  List. To the extent  reasonably  available  from
         Records as they exist on the date hereof, a list of all Persons to whom
         or to which Seller has provided clinical testing services,  at any time
         on or  prior  to the  Closing  Date  (individually,  a  "Customer"  and
         collectively,  the "Customers"),  along with related  information as to
         the date,  unit and dollar  volume of such  sales,  the type of service
         furnished and other relevant marketing and product information for each
         Customer (the "Customer List");

                  (i) Intellectual Property Rights. All of Seller's intellectual
         property,   trademarks,   trade  names,  service  marks,  service  mark
         registrations,  service  names,  patents,  patent  rights,  copyrights,
         inventions,  licenses  from a third  party  other  than a  Governmental
         Authority,   trade  secrets,   know-how  and  rights,   to  the  extent
         transferable (collectively "Intellectual Property Rights"),  including,
         without  limitation,  those items described in Schedule 2.1(i) attached
         hereto, to the extent transferable;

                  (j)      Goodwill.  The goodwill of the Business;

                  (k) Assumed  Contracts.  All rights and benefits of Seller in,
         to or under,  including,  without  limitation,  any rights of offset or
         set-off,  (i) the Leases listed on Schedule  2.1(a) attached hereto and
         (ii) the  contracts  listed on  Schedule  2.1(k)  attached  hereto (the
         foregoing Leases and contracts are collectively referred to hereinafter
         as the "Assumed  Contracts"),  each of which shall be assumed by Seller
         in accordance  with Section 365 of the Bankruptcy  Code and assigned to
         Buyer in accordance therewith;

                  (l) Permits and Approvals. All Permits issued to Seller by any
         Governmental Authority,  including, without limitation, those listed on
         Schedule  2.1(l)  attached  hereto,  to the  extent  transferable  (the
         "Transferred Permits");

                  (m) Prepaid  Expenses.  Except as set forth on Schedule 2.2(b)
         or in Sections  2.2(b) and 4.3,  all of Seller's  rights  arising  from
         advance  payments,  prepaid expenses,  prepaid rents,  surety accounts,
         deposits  and credits  (including,  without  limitation,  deposits  and
         credits  with  utilities  and  suppliers)  (collectively,  the "Prepaid
         Expenses");

                  (n)  Seller's  Warranties.  Except  as set  forth  in  Section
         2.2(e), all of Seller's rights,  Claims,  credits,  causes of action or
         rights of  set-off  against  third  parties  relating  to the  Acquired
         Assets,  including without limitation,  any rights under manufacturers'
         and vendors warranties;

                  (o) Insurance Policies and Proceeds. Except where the affected
         property  has been  repaired or replaced by Seller prior to the Closing
         Date, all policy rights and proceeds payable under any insurance policy
         covering the Acquired Assets;

                  (p)      Testing  Orders.  All  clinical  testing  orders not
         fully  performed  as of the Closing  Date; and

                  (q) Other Assets. Except as expressly excluded in Section 2.2,
         all other assets, rights and interests of every kind and description of
         Seller,  wherever  situated and whether or not relating to the Business
         or other businesses of Seller, to the extent transferable.

                  2.2 Excluded  Assets.  Notwithstanding  any other provision of
this Agreement, the following rights,  properties and assets (collectively,  the
"Excluded  Assets") are specifically  excluded from Acquired Assets and shall be
retained  by Seller at the  Closing,  as the same shall  exist as of the Closing
Date;

                  (a) Cash. Except as expressly  included in the Acquired Assets
         pursuant to Section  2.1(d),  (k), (m) and (o) all of Seller's  cash on
         hand or on deposit,  certificates of deposit, time deposits, commercial
         paper,  treasury  bills,  notes and other  securities or similar items,
         including, without limitation, deposits that are security or collateral
         for Seller's obligations to third parties;

                  (b)  Retained  Prepaid  Expenses.  All funds  arising from any
         Prepaid  Expense  set forth on  Schedule  2.2(b) to the extent that the
         Seller is  entitled  to or  receives  any  return  of any such  Prepaid
         Expense.

                  (c)      Retained  Accounts  Receivable.  All accounts 
         receivable and notes receivable set forth  on Schedule 2.2(c) hereto;

                  (d) Corporate  Records.  Seller's  corporate  minute books and
         stock  transfer  books and  other  books and  records  relating  to the
         Excluded  Assets and employees of Seller other than Retained  Employees
         (the "Retained Records");

                  (e) Claims. All rights of action,  Claims and causes of action
         of Seller  and  Seller's  estate  listed on  Schedule  2.2(e),  and the
         proceeds thereof, all rights of action,  Claims and causes of action of
         Seller and the Seller's  estate  arising  under or out of Sections 542,
         544, 545, 547, 548, 549 or 550 of the Bankruptcy Code, and the proceeds
         thereof and all other rights of action or offset,  Claims and causes of
         action of Seller not transferable to Buyer, and the proceeds thereof;

                  (f)      Certain  Contracts.  All  rights  and  benefits  of
         Seller  in, to and under  Leases and contracts  (including  insurance
         policies)  that are not  expressly  included among the Acquired Assets
         pursuant to Section 2.1(a), (k) and (o);

                  (g)  Settlement  Agreement.  (i) All  rights and  benefits  of
         Seller in, to and under that certain Settlement Agreement,  dated as of
         October  7,  1997,  by  and  among  Seller,  Chris  C.  Riedel,  Marcia
         Prendergast Riedel, Stephen B. Kass, Henry E. Bose, David Allison, John
         P. Billingsley,  John E. Swartzberg,  Morgan W. Davis, Richard L. Oken,
         Walter G. Woodbury,  John J. DiPietro,  Manish Patel,  William  Neeley,
         Donald McGovern and Price Waterhouse LLP including, without limitation,
         the proceeds  payable to Seller under such  Settlement  Agreement,  and
         (ii) all  rights of  action,  Claims and causes of action of Seller and
         Seller's  estate that relate to or arise out of the  "Litigations,"  as
         defined in such Settlement Agreement; and

                  (h) Tax  Attributes.  All net  operating  losses and other tax
         attributes of Seller.

                  2.3  Inspections;  Warranties  as  to  Condition.  Subject  to
satisfaction of the conditions contained in Article VII of this Agreement, Buyer
shall accept the Acquired  Assets as they exist on the Closing Date,  based upon
its own  inspection  thereof prior to the date hereof and without  reliance upon
any  representations or warranties made by or on behalf of Seller other than the
representations  and  warranties  of  Seller  set forth in  Section  6.1 of this
Agreement.

                  2.4  Remittance  Obligation.  From and after the Closing Date,
any amount  (other than on account of the  Excluded  Assets)  received by Seller
with respect to the Acquired Assets including,  without limitation, the accounts
receivable  described  in Section  2.1(d) shall be held in trust and remitted by
Seller to Buyer as promptly as practicable. From and after the Closing Date, any
amounts received by Buyer with respect to the Excluded Assets including, without
limitation,  amounts  representing any Prepaid Expenses retained by Seller under
Section  2.2(b)  shall be held in trust  and  remitted  by  Buyer to  Seller  as
promptly as practicable.  Buyer and Seller shall each be entitled to request and
receive, on reasonable advance notice,  supporting  documentation confirming the
accuracy of such remitted amounts.


                            ARTICLE III. LIABILITIES

                  3.1 Retention of Liabilities.  Except as expressly provided in
Section  3.2  hereof,  Seller  shall  retain,  and Buyer  shall not assume or be
responsible or liable with respect to, any Claims against or any  liabilities or
obligations of Seller,  whether or not relating to the Business,  whether fixed,
contingent or otherwise,  whether presently existing or arising  hereafter,  and
whether  known or unknown  (collectively,  "Retained  Liabilities"),  including,
without  limitation,  the liabilities and obligations of Seller, if any, for the
following (all of which will constitute Retained Liabilities):

                  (a)  Pre-Closing.  All  liabilities  and obligations of Seller
         relating  to or based on events or  conditions  occurring  or  existing
         prior to the  Closing  Date,  whether  or not in  connection  with,  or
         arising out of, the Business as operated by Seller,  or the  ownership,
         possession or use of the Acquired Assets by Seller;

                  (b)  Employees.  Any  liability,  cost,  expense or obligation
         incurred or which has become due and payable on or prior to the Closing
         Date or arising  thereafter  in respect of  Seller's  employment  of or
         failure  to  employ or to  continue  to  employ  Employees,  or for any
         Employee Liabilities, or Claims relating to employee health and safety,
         including Claims for injury, sickness, disease or death of any person;

                  (c)  Indebtedness.  Any  liability,  Claim or obligation  with
         respect to any  indebtedness,  accounts payable or other liabilities of
         Seller;

                  (d) Litigation. Any liability, Claim or obligation relating to
         any  litigation,  legal  proceeding or  governmental  investigation  or
         regulatory  investigation  pending on the Closing  Date,  or instituted
         thereafter,  to the extent based on events or  conditions  occurring or
         existing  in  connection  with,  or arising out of, the  activities  of
         Seller,  or the  Seller's  ownership,  possession  or  use of  Seller's
         property, including, without limitation, the Acquired Assets by Seller;

                  (e)  Product,   Environmental   and  Safety   Liability.   Any
         liability,  Claim  or  obligation  to the  extent  based on  events  or
         conditions  occurring  or  existing  prior  to the  Closing  Date,  and
         relating to any of the following:  (i) disputes arising out of services
         rendered  by  Seller  prior to the  Closing  Date,  including,  without
         limitation,  Claims for refunds,  returns, personal injury and property
         damage,  (ii)  Claims,  if any,  based on the  transport,  treatment or
         disposal of Hazardous Materials by Seller prior to the Closing or (iii)
         compliance  or  noncompliance  by Seller  with any laws or  regulations
         relating  to the  matters  specified  in  clauses  (i) or  (ii) of this
         Section 3.1(e) or to any Environmental Law;

                  (f) Taxes.  Subject to Sections 4.3 and 4.4, any  liability or
         obligation  of Seller  for any  federal,  state or local  taxes (or any
         interest or penalties thereon),  including, without limitation, (i) all
         income,  franchise and property taxes,  including,  without limitation,
         taxes  attributable to the sale of inventory and employee  withholding,
         FICA or unemployment tax obligations, and (ii) capital gain, income and
         other taxes imposed on the Acquired Assets;

                  (g) Liabilities  Relating to Excluded Assets. Any liability or
         obligation  to the extent  relating to or based on events or conditions
         occurring  or  existing  in  connection  with,  or arising  out of, the
         Excluded Assets;

                  (h)  Government  Settlement  Agreement.  Any  liabilities  and
         obligations  of Seller in, to and under that  certain  agreement  dated
         February  4, 1997 by and  among the  United  States of  America  acting
         through the Department of Justice,  the Office of the Inspector General
         of the United  States  Department  of Health and Human  Resources,  the
         State of California  acting through its  Department of Justice,  Janice
         Prendergast,   Julia  Silveira  and  Seller,   including  any  and  all
         amendments,   addenda,  exhibits  and  schedules  attached  thereto  or
         incorporated therein by reference; and

                  (i)   Assumed   Contracts.   Liabilities,    obligations   and
         commitments  arising or accrued under the Assumed  Contracts before the
         Closing Date and required to be paid  pursuant to Section  365(b)(1)(A)
         and (B) of the Bankruptcy Code.

                  3.2 Assumed  Liabilities.  From and after the  Closing,  Buyer
shall assume and agree to pay, perform and discharge when due the following, and
only the  following,  liabilities  and  obligations  of Seller as of the Closing
Date,  subject,  in each  case,  to any and all Claims  and  defenses  of Seller
(collectively, "Assumed Liabilities"):

                  (a)      Assumed  Contracts.  Liabilities,  obligations  and 
         commitments  of  Seller  under  the Assumed  Contracts  acquired by or
         assigned  to Buyer  pursuant  to Section  2.1 arising on or after the
         Closing Date;

                  (b) Repair Obligations. Obligations with respect to the repair
         or replacement  (due to events  occurring prior to the Closing Date) of
         Acquired  Assets as to which Buyer is entitled  to  insurance  proceeds
         under Section 2.1(o);

                  (c)      Transferred  Permits.  Liabilities,  obligations and 
         commitments  of  Seller  for  the period from and after the Closing
         Date under the Transferred Permits included in the Acquired Assets and
         acquired by Buyer pursuant to Section 2.1; and

                  (d) Retained  Employees.  Any liability or obligation  accrued
         but  unpaid  as of  the  Closing  Date  for  vacation,  sick  payments,
         severance  or other paid time off only,  due to or with  respect to any
         Retained  Employees in respect of  employment  with Seller prior to the
         Closing  Date and any  liability  under WARN with  respect to  Retained
         Employees  and any other  employee of Seller of whom Buyer  requests in
         writing  that  Seller  continue  employment  for any  period  after the
         Closing Date.


                           ARTICLE IV. PURCHASE PRICE

                  4.1 Purchase Price. Subject to Section 4.2 and the other terms
and conditions  hereof,  in full  consideration for the Transfer of the Acquired
Assets and the representations,  warranties and the other undertakings of Seller
contained herein, at the time of the Closing, (i) Buyer shall assume the Assumed
Liabilities,  and (ii)  Buyer  shall  deliver  and pay a total  purchase  price,
subject to the proration adjustments set forth in Section 4.3 and, if applicable
Section 11.2(b), of $16,520,000 (the "Purchase Price"), payable as follows:

                  (a)  Convertible  Note.  Delivery  by Buyer  of a  convertible
         subordinated  promissory  note of  Buyer  in the  principal  amount  of
         $14,000,000, bearing interest on the outstanding balance thereof at the
         rate of 7.5% per  annum,  and  substantially  in the form of  Exhibit A
         attached hereto (the "Convertible Note").

                  (b) Cash  Payment.  Delivery by Buyer to Seller of  $2,520,000
         (the  "Cash  Payment"),  payable  in  seventy-two  (72)  equal  monthly
         installments  of $35,000 and payable on the first  Business Day of each
         month,  commencing with the first calendar month immediately  following
         the Closing Date.

                  4.2 Purchase Price Adjustment. (a) If, as of the Closing Date,
a Purchase Price Reduction Event has occurred,  the amount of the Purchase Price
shall be reduced by an amount equal to the applicable  Purchase Price  Reduction
Amount.  The  Purchase  Price  Reduction  Amount  shall be applied to reduce the
installments of the Cash Payment, commencing with the first scheduled payment.

                  (b) In the event  that  Seller  fails to deliver  the  audited
financial statements as required under Section 8.11 on or prior to the date that
is 60 days  after the  Closing  Date,  the  Purchase  Price  shall be reduced by
$2,000,000, which reduction shall be applied by reducing the principal amount of
the Convertible Note.

                  4.3  Prorations  and  Reimbursements.  The charges,  payments,
taxes and  assessments  and other  obligations in respect of the following items
shall be prorated as of the Closing Date  between  Seller and Buyer based on the
number of days of such relevant period before the Closing Date and the number of
days of such relevant period after the Closing Date:

                  (i)      Utility Charges.  All water,  electricity and other
         utility charges,  if any, applicable to the  Seller's  place of 
         business  to the extent  that final  meter  readings  and  billings 
         cannot be arranged;

                  (ii) Fee  Payments.  All  payments of fees,  rents for periods
         after the Closing (other than security  deposits) or other  obligations
         in respect of the Transferred Permits or Assumed Contracts; and

                  (iii) Tax Payments. All real property taxes, personal property
         taxes and  similar  obligations  levied  with  respect to the  Acquired
         Assets or operation of the Business for a taxable period which includes
         (but does not end on) the Closing Date shall be apportioned between the
         Seller and Buyer; provided,  however, that the amount payable by Seller
         shall not take into account any increases in such taxes occurring after
         the Closing Date.

Buyer and  Seller  shall use their  reasonable  best  efforts to  calculate  all
prorations at or prior to the Closing.  Upon approval by Buyer and Seller,  such
calculations shall be binding and conclusive.  The net amount of such prorations
shall,  upon  becoming  known,  be  subtracted  from the  first  installment  or
installments of the Cash Payment if Buyer is entitled to a credit  therefor,  or
added to the first  installment  of the Cash  Payment if Seller is entitled to a
credit therefor.

                  4.4  Transfer  Taxes.  To the extent  applicable,  the parties
agree that  Seller and Buyer  shall  each pay fifty  percent  (50%) of any taxes
attributable  to or  resulting  or  arising  from the  transfer  to Buyer of the
Acquired Assets;  provided,  however,  that the respective  parties shall remain
solely  responsible  for any  federal,  state or local taxes  imposed  upon them
arising out of any income or gains associated with such transfer.


                               ARTICLE V. CLOSING

                  5.1 Closing.  As used in this Agreement,  "Closing" shall mean
the time at which Seller  consummates  the  Transfer of the  Acquired  Assets to
Buyer and Buyer  assumes  the  Assumed  Liabilities  as  provided  herein by the
execution and delivery of the documents and  instruments  referred to in Section
5.2 by Seller  against  delivery by Buyer of the  Purchase  Price as provided in
Article IV and execution and delivery by Buyer of the documents and  instruments
referred  to in Section  5.3. In the  absence of the prior  termination  of this
Agreement by Buyer or Seller in  accordance  with Article XI, the Closing  shall
take place at the offices of Milbank, Tweed, Hadley & McCloy, 601 South Figueroa
Street,  Los Angeles,  California 90017, at 10:00 a.m. (Los Angeles time) on (a)
the later of (i) the first  Business  Day that is one (1)  calendar  week  after
entry by the Bankruptcy Court of the Sale Order and (ii) the first date on which
all of the  conditions  set forth in Article VII hereof have been  satisfied  or
waived,  or (b) such  other  date as may be  mutually  agreed  upon by Buyer and
Seller (the "Closing Date").

                  5.2  Documents  to be  Delivered  by Seller.  At the  Closing,
Seller shall deliver to Buyer:

                  (a)   Resolutions  and  Actions.   Certified   copies  of  the
         resolutions  of the Board of  Directors of the Seller  authorizing  and
         approving  this  Agreement and all other  transactions  and  agreements
         contemplated hereby;

                  (b)      Bankruptcy  Court Orders.  Certified  copies of the
         Sale  Procedures  Order and the Sale Order;

                  (c) Bill of Sale and Assignment and  Assumption  Agreement.  A
         bill of sale and separate assumption  agreement dated as of the Closing
         Date, in form and substance reasonably acceptable to Buyer transferring
         the Acquired  Assets to Buyer,  free and clear of any and all Liens and
         Claims other than  Permitted  Liens,  and relating to the assumption of
         the Assumed Liabilities;

                  (d)  Assignment  of  Intellectual  Property.   Instruments  of
         assignment to Buyer of all trademarks,  trade names,  service marks and
         patents,   if  any  (and  all  applications  for,  and  extensions  and
         reissuances of, any of the foregoing and rights therein), identified on
         Schedule 2.1(i);

                  (e)      Certificate Regarding Conditions.  The certificate
         required by Section 7.1(g);

                  (f)      Incumbency Certificates.  Incumbency Certificates of
         the officers of Seller;

                  (g) Good Standing Certificate. A good standing certificate for
         Seller from the Secretary of State of  California,  dated not more than
         10 days prior to the Closing Date;

                  (h)  Opinion of Counsel  for  Seller.  The opinion of Milbank,
         Tweed, Hadley & McCloy,  counsel for Seller, dated the Closing Date, in
         form and substance reasonably acceptable to Buyer;

                  (i)      Registration  Rights  Agreement.  The Registration 
         Rights  Agreement,  duly executed by Seller; and

                  (j) Such other  documents  as may be  reasonably  requested by
         Buyer to effectuate the transactions contemplated by this Agreement.

                  5.3 Documents to be Delivered by Buyer. At the Closing,  Buyer
shall deliver, or cause to be delivered, to Seller:

                 (a)      Resolutions.  Certified  copies of the  resolutions 
       of the Board of  Directors of Buyer authorizing and approving this
       Agreement and all other transactions and agreements contemplated hereby;

                  (b)      Certificate Regarding Conditions.  The certificate
         required by Section 7.2(f);

                  (c) Bill of Sale and Assignment and Assumption Agreement.  The
         Bill of  Sale,  Assignment  and  Assumption  Agreement  referred  to in
         Section 5.2(c), duly executed by Buyer;

                  (d)      Convertible Note.  The Convertible Note, duly
         executed by Buyer;

                  (e) Good Standing Certificate. A good standing certificate for
         Buyer from the  Secretary of State of the State of Delaware,  dated not
         more than 10 days prior to the Closing Date;

                  (f)      Incumbency Certificate.  An incumbency Certificate of
         the officers of Buyer;

                  (g)  Opinion of Counsel for Buyer.  The  opinion of  Greenberg
         Glusker Fields Claman & Machtinger  LLP,  counsel for Buyer,  dated the
         Closing Date, in form and substance reasonably acceptable to Seller;

                  (h)      Registration  Rights  Agreement.  The Registration 
         Rights  Agreement,  duly executed by Buyer; and

                  (i) Such other  documents  as may be  reasonably  requested by
         Seller to effectuate the transactions contemplated by this Agreement.


                   ARTICLE VI. REPRESENTATIONS AND WARRANTIES

                  6.1  Representations  and Warranties of Seller.  Seller hereby
represents and warrants to Buyer that:

                  (a) Organization and Standing; Power and Authority.  Seller is
         a corporation  duly  organized,  validly  existing and in good standing
         under the laws of the State of  California.  Seller has full  corporate
         power  and  authority  to own or lease,  as  applicable,  the  Acquired
         Assets,  to carry on the Business as now being conducted,  and, subject
         to the Bankruptcy  Court approvals  contemplated by Sections 7.1(a) and
         (b),  to make and  perform  this  Agreement  and, to the extent it is a
         party thereto,  the other agreements and instruments to be delivered at
         the  Closing  pursuant  to  Section  5.2  (collectively,   the  "Seller
         Agreements")  and to consummate the  transactions  contemplated by this
         Agreement  and the  Seller  Agreements.  Seller  is the  only  business
         enterprise,   firm  or  corporation   through  which  the  Business  is
         conducted.  Seller is qualified to do business and is in good  standing
         in the State of  California  and each other  jurisdiction  in which the
         failure  to so  qualify  as a foreign  corporation  would have a Seller
         Material Adverse Effect.  This Agreement and the Seller Agreements have
         been, or upon execution and delivery thereof will be, duly executed and
         delivered by Seller. This Agreement and the Seller Agreements have been
         duly authorized by all necessary  corporate action of Seller,  and when
         executed and upon approval by the Bankruptcy  Court as  contemplated by
         Sections  7.1(a)  and (b),  shall  constitute  the  valid  and  binding
         obligations of Seller,  enforceable in accordance with their respective
         terms.

                  (b) Title to the Acquired Assets,  Etc. Seller has a valid and
         subsisting  leasehold  estate in, and the right to quiet  enjoyment of,
         the real property subject to the Leases. Seller has good and defensible
         title to each of the Acquired  Assets,  and the Acquired Assets are, or
         as of the Closing will be, free and clear of all Liens and Claims other
         than (i) current  real estate taxes or  governmental  charges or levies
         referred to in Section 4.3(iii) which are not yet due and payable, (ii)
         Liens, if any,  created by Buyer,  (iii) Liens relating  exclusively to
         the Assumed  Liabilities  and (iv) Liens  disclosed on Schedule  6.1(b)
         attached  hereto.  The delivery to Buyer of the instruments of transfer
         of ownership  contemplated  by this  Agreement,  together with the Sale
         Order,  will vest good and defensible  title to the Acquired  Assets in
         Buyer,  free and clear of any and all Liens and  Claims  other than the
         Liens and Claims  referred to in clauses  (i)  through  (iv) above (the
         "Permitted Liens").  The Acquired Assets constitute all of the property
         and  assets  of  Seller  used or held for use in the  Business  and are
         adequate for the conduct of the Business as presently  conducted by the
         Seller.

                  (c) Assumed Contracts.  Set forth on Schedule 6.1(c) is a list
         of all Leases,  contracts and agreements of Seller that are material to
         the conduct of the  Business or to the use or ownership of the Acquired
         Assets.  The  Assumed  Contracts,   as  made  available  to  Buyer  for
         inspection prior to execution of this Agreement, have not been amended,
         modified,  terminated  or  rejected  pursuant  to  Section  365  of the
         Bankruptcy  Code except as indicated  on  Schedules  2.1(a) and 2.1(k).
         Seller has not  received  any notice of the  intention  of any party to
         terminate any Assumed Contract except as set forth in Schedule 6.1(c).

                  (d)  Receivables.  All accounts,  notes  receivable  and other
         receivables  reflected  on Schedule  6.1(d) are,  and all  accounts and
         notes receivable  arising from or otherwise relating to the Business at
         the Closing Date will be, valid,  genuine and legal,  subject to normal
         and customary trade discounts,  less any reserves for doubtful accounts
         specified  on  Schedule  6.1(d).  Except for  receivables  that are not
         material,  individually  or  in  the  aggregate,  all  accounts,  notes
         receivable  and other  receivables  arising  out of or  relating to the
         Business on the date hereof have been included in Schedule 6.1(d),  and
         all accounts,  notes receivable and other receivables arising out of or
         relating  to the  Business  as of the  Closing  Date  will be  added to
         Schedule 6.1(d) as of the Closing Date.

                  (e)  Regulatory  Compliance.  Except as set forth on  Schedule
         6.1(e)  attached  hereto,  Seller,  with  respect to the conduct of the
         Business and the  maintenance of the Acquired  Assets,  is currently in
         compliance in all material  respects with all applicable  laws, and all
         applicable   regulations  and  orders  of  any  Governmental  Authority
         (including,   without   limitation,   immigration  and  naturalization,
         anti-discrimination,  civil  rights,  occupational  health  and  safety
         regulations and  Environmental  Laws).  Except as set forth on Schedule
         6.1(e) attached hereto, Seller, with respect to the Business, is not in
         default under, and no event has occurred which,  with the lapse of time
         or action by a third party,  is reasonably  likely to result in default
         under,  the  terms  of any  judgment,  decree,  order  or  writ  of any
         Governmental Authority, whether at law or in equity, as to which Seller
         has received notice.

                  (f)  Brokers,  Finders and Agents.  Seller is not  directly or
         indirectly  obligated  to anyone  acting as a broker,  finder or in any
         other  similar  capacity  in  connection  with  this  Agreement  or the
         transactions contemplated hereby.

                  (g)  Intellectual  Property.  Schedule  2.1(i) attached hereto
         sets forth a complete  and  correct  list  (with an  indication  of the
         record owner and identifying  number,  if any) of all the  Intellectual
         Property Rights.  Except as set forth on Schedule  2.1(i),  none of the
         Intellectual  Property  Rights  have  expired  or  terminated,  or  are
         expected  to  expire  or  terminate  in the  near  future.  Except  for
         Intellectual  Property Rights arising under licenses  granted to Seller
         by third  parties,  as to which  Seller  makes  no  representations  or
         warranties,  none of the Intellectual  Property Rights infringes on any
         trademarks,  trade names,  service marks,  service mark  registrations,
         service  names,  patents,   patent  rights,   copyrights,   inventions,
         licenses,  approvals,  governmental  authorizations,  trade  secrets or
         other similar rights of others. Except for Intellectual Property Rights
         arising under licenses granted to Seller by third parties,  as to which
         Seller makes no representations or warranties, Seller does not have any
         knowledge of any  development of similar or identical  trade secrets or
         technical  information  by  others.  Except for  Intellectual  Property
         Rights arising under licenses granted to Seller by third parties, as to
         which Seller makes no  representations  or warranties,  Seller does not
         have any knowledge of any event,  fact or circumstance  relating to any
         person or entity now infringing  any  Intellectual  Property  Rights or
         other similar  rights or any such  development  of similar or identical
         trade secrets or technical  information owned or used by Seller.  There
         is no claim,  action or proceeding being made or brought against, or to
         Seller's  knowledge,  being  threatened  against,  Seller regarding any
         trademarks,  trade names,  service marks,  service mark  registrations,
         service  names,  patents,   patent  rights,   copyrights,   inventions,
         licenses,  trade secrets or other similar  rights of others,  or of any
         such  development  of similar or identical  trade  secrets or technical
         information  by  others;   and  Seller  is  unaware  of  any  facts  or
         circumstances which might give rise to any of the foregoing. Except for
         Intellectual  Property Rights arising under licenses  granted to Seller
         by third  parties,  as to which  Seller  makes  no  representations  or
         warranties,  and except as indicated  on Schedule  2.1(i),  Seller,  as
         shown on  Schedule  2.1(i),  is the sole owner or has the right to use,
         free and clear of any  payment  or other  Lien,  all such  Intellectual
         Property  Rights.  Except as  indicated  on  Schedule  2.1(i),  no such
         Intellectual  Property Rights (or any applications for or extensions or
         reissuances  of any of the  foregoing)  are  owned  otherwise  than  by
         Seller.

                  (h) Permits. Schedule 2.1(l) sets forth a complete and correct
         list of all of Seller's  Permits.  The Permits  constitute  all permits
         issued  by  the  appropriate  federal,   state  or  foreign  regulatory
         authorities  necessary  to  conduct  the  Business  and  Seller has not
         received  any  notice of  proceedings  relating  to the  revocation  or
         modification of any such  Transferred  Permit.  To the best of Seller's
         knowledge,  no condition,  event,  occurrence  or omission  exists that
         would cause the revocation or modification  of any Transferred  Permit,
         except where such revocation or modification  would not have a material
         adverse effect on the  consummation  of the  transactions  contemplated
         hereby  or on the use by the  Buyer of the  Acquired  Assets  after the
         Closing Date.

                  (i)  Labor  Matters.  Seller  is not a party to any  currently
         effective  collective  bargaining  or other labor union  contract  with
         respect  to the  Business.  Except  as set  forth  on  Schedule  6.1(i)
         attached   hereto,   there  are  presently  no  unfair  labor  practice
         complaints or other labor  controversies  pending  against  Seller with
         respect to the Business,  or any strikes,  slowdowns,  work  stoppages,
         lockouts or, to Seller's knowledge, threats thereof, by or with respect
         to any Employees of Seller. To Seller's  knowledge,  there are no union
         representation  questions  involving  persons employed by Seller or any
         current   activities   or   proceedings   of  any   labor   union   (or
         representatives  thereof)  to organize  any  unorganized  Employees  of
         Seller.

                  (j) Environmental and Safety  Compliance.  Except as set forth
         on Schedule  6.1(j),  (i) no Hazardous  Materials  have been  released,
         disposed  or  discharged  on,  beneath or about the  Seller's  place of
         business,  (ii) Seller is and has been at all times in compliance  with
         all, and has no liability  under  applicable  Environmental  Laws,  and
         (iii)  Seller has not  received  written  notice from any  Governmental
         Authority  that the  operation  of, or any of the  conditions  on,  the
         Seller's  place of business,  violates or has violated or could subject
         Seller   to   liabilities,   including   response   costs,   under  any
         Environmental Law. As used herein, the term "Hazardous Materials" means
         any hazardous, toxic or dangerous waste or material, including, without
         limitation,  any chemical,  substance,  material,  waste or combination
         thereof  hazardous to human health or safety or to the  environment and
         regulated  by  any  Environmental   Law.  As  used  herein,   the  term
         "Environmental  Law" means the  Comprehensive  Environmental  Response,
         Compensation and Liability Act of 1980, 42 U.S.C.  ss.9601 et seq., and
         any amendments thereto; the Resource and Conservation and Recovery Act,
         42 U.S.C.  ss.6901 et seq., and any amendments  thereto;  the Hazardous
         Materials  Transportation Act, 49 U.S.C. ss.1801 et seq.; and any other
         similar federal, state or local statute, regulation,  ordinance, order,
         permit,  decree,  license,  or any other law,  requirement,  common law
         theory or  reported  decision  of any state or  federal  court or other
         Governmental  Authority,  as now or at any time  hereafter  in  effect,
         relating to, or imposing liability or standards of conduct  concerning,
         any hazardous,  toxic or dangerous waste, substance or material.  There
         has been no environmental investigation,  study, audit, test, review or
         other  analysis  of which the Seller has  knowledge  in relation to any
         Acquired  Assets or beneath or about  Seller's  place of business which
         have not been  delivered  to Buyer at least two days  prior to the date
         hereof.

                  (k) Underground Storage Tanks. Except as set forth on Schedule
         6.1(k),  there are no  Underground  Storage  Tanks (as  defined  below)
         located  upon  and/or  serving  the  premises  subject  to the  Leases.
         "Underground  Storage  Tank" for the purposes of this  Agreement  shall
         mean any one or  combination  of tanks,  including  appurtenant  pipes,
         lines,  fixtures  and  other  related  equipment,  used to  contain  an
         accumulation of hazardous  substances,  the volume of which,  including
         the volume of the appurtenant pipes, lines,  fixtures and other related
         equipment, is ten percent (10%) or more below the ground.

                  (l) Approvals. Other than (i) in connection, or in compliance,
         with the provisions of the Hart-Scott-Rodino Antitrust Improvements Act
         of  1976,  as  amended,  and  the  rules  and  regulations  promulgated
         thereunder (the "HSR Act"),  (ii) as specifically  contemplated by this
         Agreement,  and (iii)  the  Bankruptcy  Court  orders  contemplated  by
         Sections 7.1(a) and (b), no consents,  novations,  approvals,  filings,
         authorizations  or other  requirements  prescribed  by any  law,  rule,
         regulation, agreement or Permit must be obtained or satisfied by Seller
         for the  execution,  delivery or  performance of this Agreement and the
         Seller   Agreements  and  for  the  consummation  of  the  transactions
         contemplated by this Agreement and the Seller Agreements.

                  (m)  Books  and  Records.  The  books  and  records  of Seller
         maintained  in  connection  with  the  Business   (including,   without
         limitation, the Records) accurately record all transactions relating to
         the  Business  except to the extent that the failure to so record would
         not have a material  adverse  effect on the  Business  as  acquired  by
         Buyer, and such books and records have been maintained  consistent with
         good business practices.

                  (n)  Copies of  Documents.  Seller  has made  available  to or
         delivered at the request of Buyer true,  correct and complete copies of
         all contracts,  leases,  agreements and other  documents  listed in the
         Schedules  to this  Agreement,  and all  modifications  and  amendments
         thereto.

                  (o)   Investment   Purpose.   Seller  (i)  is  acquiring   the
         Convertible  Note and (ii) upon conversion of the Convertible Note will
         acquire the Conversion Shares then issuable for its own account and not
         with a view towards,  or for resale in connection with, the public sale
         or  distribution  thereof,  except  pursuant  to  sales  registered  or
         exempted under the Securities Act of 1933, as amended (the "1933 Act");
         provided,  however,  that by making the representations  herein, Seller
         does not agree to hold any Securities for any minimum or other specific
         term and reserves the right to dispose of the Securities at any time in
         accordance with or pursuant to a registration statement or an exemption
         under the 1933 Act.

                  (p)  Accredited  Investor  Status.  Seller  is an  "accredited
         investor"  as that term is defined in Rule  501(a) of  Regulation  D as
         promulgated by the SEC under the 1933 Act.

                  (q)  Reliance  on  Exemptions.  Seller  understands  that  the
         Convertible  Note  is  being  issued  to it  in  reliance  on  specific
         exemptions from the registration  requirements of United States federal
         and state  securities  laws and that  Buyer is relying in part upon the
         truth  and   accuracy   of,   and   Seller's   compliance   with,   the
         representations,    warranties,    agreements,    acknowledgments   and
         understandings  of Seller set forth  herein in order to  determine  the
         availability  of such  exemptions  and the  eligibility  of  Seller  to
         acquire the Convertible Note.

                  (r) No Governmental Review.  Seller understands that no United
         States federal or state agency or any other  government or governmental
         agency has passed on or made any  recommendation  or endorsement of the
         Securities  or the  fairness or  suitability  of an  investment  in the
         Securities nor have such authorities passed upon or endorsed the merits
         of the issuance of the Securities.

                  (s)  Transfer  or Resale.  Seller  understands  that except as
         provided in the Registration Rights Agreement:  (i) the Securities have
         not been and are not being  registered  under the 1933 Act or any state
         securities  laws,  and may not be offered for sale,  sold,  assigned or
         transferred  unless (A)  subsequently  registered  thereunder,  (B) the
         Securities to be sold, assigned or transferred may be sold, assigned or
         transferred  pursuant to an exemption  from such  registration,  or (C)
         such Securities can be sold,  assigned or transferred  pursuant to Rule
         144 promulgated under the 1933 Act (or a successor rule thereto) ("Rule
         144"); (ii) any sale of the Securities made in reliance on Rule 144 may
         be made only in accordance  with the terms of Rule 144 and further,  if
         Rule  144  is not  applicable,  any  resale  of  the  Securities  under
         circumstances  in which the seller (or the person through whom the sale
         is made) may be deemed to be an underwriter (as that term is defined in
         the 1933 Act) may require  compliance  with some other  exemption under
         the 1933 Act or the rules and  regulations of the SEC  thereunder;  and
         (iii)  neither  Buyer nor any other person is under any  obligation  to
         register  such  securities  under the 1933 Act or any state  securities
         laws or to  comply  with the  terms  and  conditions  of any  exemption
         thereunder.

                  (t) Legends. Seller understands that the certificates or other
         instruments representing the Convertible Note and the Conversion Shares
         shall bear a restrictive  legend in  substantially  the following  form
         (and a  stop-transfer  order may be  placed  against  transfer  of such
         certificates):

         [NEITHER THIS NOTE NOR THE] [THESE] SHARES OF THE ISSUER'S COMMON STOCK
         [ISSUABLE UPON CONVERSION  HEREOF] HAVE [NOT] BEEN REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE
         SECURITIES  LAWS.  [THIS NOTE HAS BEEN (AND ANY SUCH  SHARES  WILL BE)]
         [THESE SHARES HAVE BEEN] ACQUIRED FOR THE ACCOUNT OF THE SELLER AND NOT
         WITH A VIEW  TOWARDS,  OR FOR  RESALE  IN  CONNECTION  WITH,  A  PUBLIC
         OFFERING AND MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED
         IN THE ABSENCE OF AN EFFECTIVE  REGISTRATION  STATEMENT  FOR [THIS NOTE
         OR] SUCH SHARES UNDER THE SECURITIES ACT OR APPLICABLE STATE SECURITIES
         LAWS, OR AN EXEMPTION FROM SUCH REGISTRATION OR UNLESS SOLD PURSUANT TO
         RULE 144 UNDER THE SECURITIES ACT.

                  The legend set forth  above  shall be removed  and Buyer shall
         issue a certificate without such legend to the holder of any Securities
         upon which it is stamped, if (i) upon a resale, any such Securities are
         registered for sale under the 1933 Act, (ii) in connection  with a sale
         transaction,  upon advice of Buyer's counsel,  such sale, assignment or
         transfer  of any of the  Securities  may be made  without  registration
         under the 1933 Act, or (iii) any of the Securities can be sold pursuant
         to Rule 144  without  any  restriction  as to the number of  Securities
         acquired as of a  particular  date that can then be  immediately  sold.
         Seller acknowledges, covenants and agrees to sell any of the Securities
         represented by a certificate(s) from which the legend has been removed,
         only pursuant to (i) a registration  statement effective under the 1933
         Act,  or (ii) a sale  that is  exempt  from  registration  required  by
         Section 5 of the 1933 Act.  In the  event the above  legend is  removed
         from any of the Securities,  Buyer may, upon reasonable  advance notice
         to the holder,  require  that the above  legend be placed on any of the
         Securities   that  cannot  then  be  sold   pursuant  to  an  effective
         registration  statement  or Rule  144(k)  under  the  1933  Act (or any
         successor rule thereto).

                  (u) No Material  Misstatements.  No information provided by or
         on behalf  of  Seller  to Buyer  contains  any  untrue  statement  of a
         material fact or omits to state any material fact necessary in order to
         make the statements  therein,  in the light of the circumstances  under
         which they are or were made, not misleading.

                  (v)  Litigation.  Except  as  set  forth  on  Schedule  6.1(v)
         attached  hereto,  there  is  no  action,  suit,  or  investigation  or
         proceeding  pending  against,  or, to the best of  Seller's  knowledge,
         threatened  against or  affecting,  the Business or any Acquired  Asset
         before any court or  arbitrator  or any  governmental  body,  agency or
         official  which,  individually  or in the  aggregate,  if determined or
         resolved  adversely to Seller,  could  reasonably be expected to have a
         material  adverse  effect on the  Business  as acquired by the Buyer or
         materially  impair the Buyer's use of the  Acquired  Assets or which in
         any manner challenges or seeks to prevent,  enjoin, alter or materially
         delay the transactions contemplated by this Agreement.

                  (w) Conflicts; Defaults. Neither the execution and delivery of
         this  Agreement or the Seller  Agreements by Seller,  nor, after giving
         effect to the Sale Order, the performance of its obligations  hereunder
         and thereunder or the transactions contemplated hereby or thereby, will
         (i)  conflict  with or  result in a  violation  of the  certificate  of
         incorporation or by-laws of Seller or (ii) conflict with, or constitute
         a default (or an event which with notice or lapse of time or both would
         become a default)  under,  or give to others any rights of termination,
         amendment,  acceleration  or cancellation  of, any material  agreement,
         indenture,  security  agreement,  mortgage,  lease or other contract or
         instrument to which Seller is a party,  or result in a violation of any
         law,  rule,  regulation,  order,  judgment  writ,  injunction or decree
         applicable  to Seller or by which  any  property  or asset of Seller is
         bound or affected. After giving effect to the Sale Order, Seller is not
         subject  to any  violation  of any  term  of or in  default  under  its
         certificate  of  incorporation  or by-laws,  or any material  contract,
         agreement, mortgage,  indebtedness,  indenture,  instrument,  judgment,
         law,  rule,  regulation,  writ,  injunction,  decree  or  order  or any
         statute, rule or regulation of any Governmental Authority applicable to
         Seller that would have a material adverse effect on the consummation of
         the transactions  contemplated hereby or on the use by the Buyer of the
         Acquired Assets after the Closing Date.

                  (x)  Insurance.  For all periods  prior to the  Closing  Date,
         Seller is insured by insurers of  recognized  financial  responsibility
         against  such  losses and risks and in such  amounts as is prudent  and
         customary in the  businesses in which Seller is engaged.  To the extent
         that any such  insurance  would  otherwise  expire prior to the Closing
         Date, Seller has no reason to believe that it will not be able to renew
         its existing insurance coverage as and when such coverage expires or to
         obtain  similar  coverage from similar  insurers as may be necessary to
         continue its business at a cost that would not materially and adversely
         affect  the  condition,   financial  or  otherwise,  or  the  earnings,
         business,  properties  or  operations  of Seller and its  subsidiaries,
         taken as a whole.

                  6.2  Representations and Warranties of Buyer. Buyer represents
and warrants, as to itself and its subsidiaries, to Seller that:

                  (a) Organization and Standing;  Corporate Power and Authority.
         Buyer is a corporation  duly  organized,  validly  existing and in good
         standing  under  the  laws of the  State  of  Delaware,  and  has  full
         corporate  power  and  authority  to  own  or  lease  its  assets,   as
         applicable,  to conduct its  business  operations,  to make and perform
         this  Agreement,  the  Registration  Rights  Agreement  and  the  other
         agreements and  instruments to be delivered at the Closing  pursuant to
         Section 5.3  (collectively,  the "Buyer  Agreements") and to consummate
         the  transactions   contemplated  hereby  and  thereby.  The  Buyer  is
         qualified  to do business  and in good  standing  under the laws of the
         State of  California,  and in all other  states where the failure to so
         qualify would have a Buyer Material Adverse Effect.  This Agreement and
         the Buyer  Agreements have been, or upon execution and delivery thereof
         will be, duly  executed and  delivered by Buyer.  This  Agreement,  the
         Buyer Agreements and the transactions  contemplated  hereby and thereby
         have been duly  authorized by all necessary  corporate  action of Buyer
         and when executed and effective shall  constitute the valid and binding
         obligations of Buyer,  enforceable in accordance with their  respective
         terms, subject to applicable laws affecting creditors' rights generally
         and as to enforcement,  to general principles of equity,  regardless of
         whether applied in proceedings at law or in equity.

                  (b) Conflicts; Defaults. Neither the execution and delivery of
         this Agreement or the Buyer Agreements by Buyer, nor the performance of
         its   obligations   hereunder  and   thereunder  or  the   transactions
         contemplated  hereby or thereby,  will (i) conflict with or result in a
         violation of the  certificate of  incorporation  or by-laws of Buyer or
         (ii)  conflict  with,  or  constitute a default (or an event which with
         notice or lapse of time or both would become a default)  under, or give
         to  others  any  rights  of  termination,  amendment,  acceleration  or
         cancellation of, any material agreement, indenture, security agreement,
         mortgage,  lease or other  contract or  instrument  to which Buyer is a
         party,  or result in a violation of any law, rule,  regulation,  order,
         judgment  writ,  injunction  or  decree  (including  federal  and state
         securities  laws and  regulations  and the rules and regulations of the
         principal  market or  exchange  on which the Common  Stock is traded or
         listed)  applicable to Buyer or by which any property or asset of Buyer
         is bound  or  affected.  Buyer is not  subject  to any  Buyer  Material
         Adverse  Effect as a result of a violation of any term of or in default
         under its  certificate  of  incorporation  or by-laws,  or any material
         contract, agreement,  mortgage,  indebtedness,  indenture,  instrument,
         judgment, law, rule, regulation,  writ, injunction,  decree or order or
         any  statute,   rule  or  regulation  of  any  Governmental   Authority
         applicable to Buyer. Other than in connection,  or in compliance,  with
         the provisions of the HSR Act, and except as specifically  contemplated
         by this  Agreement  and as  required  under  the 1933  Act  (including,
         without limitation,  as provided in the Registration Rights Agreement),
         no consents,  novations,  approvals,  filings,  authorizations or other
         requirements  prescribed  by any law,  rule,  regulation,  agreement or
         permit  must be  obtained  or  satisfied  by Buyer  in order  for it to
         execute,   deliver  or  perform  any  of  its   obligations   under  or
         contemplated by this Agreement,  the  Registration  Rights Agreement or
         the  Convertible  Note  or for  the  consummation  of the  transactions
         contemplated hereby or thereby.

                  (c) Issuance of Convertible Note. The Convertible Note is duly
         authorized  and,  upon  issuance in  accordance  with the terms hereof,
         shall be the legal, valid and binding obligation of the Buyer,  subject
         to  bankruptcy,  insolvency or similar laws affecting  creditor  rights
         generally.  The number of shares of Common  Stock  necessary to provide
         for the issuance of the Conversion  Shares in accordance with the terms
         of this Agreement and the  Convertible  Note have been duly  authorized
         and reserved for issuance upon conversion of the Convertible Note. Upon
         conversion in accordance  with the  Convertible  Note,  the  Conversion
         Shares will be validly issued,  fully paid and  nonassessable  and free
         from all taxes,  Liens,  Claims,  and charges with respect to the issue
         thereof,  with the holders being  entitled to all rights  accorded to a
         holder of Common Stock.

                  (d) SEC Documents;  Financial  Statements.  Since December 31,
         1996,  Buyer has filed all reports,  schedules,  forms,  statements and
         other documents required to be filed by it with the SEC pursuant to the
         reporting  requirements  of the  Securities  Exchange  Act of 1934,  as
         amended (the "1934 Act") (all of the foregoing  filed prior to the date
         hereof and all exhibits  included therein and financial  statements and
         schedules thereto and documents incorporated by reference therein being
         hereinafter referred to as the "SEC Documents"). As of their respective
         dates,  the SEC  Documents  complied in all material  respects with the
         requirements  of the 1934 Act and the rules and  regulations of the SEC
         promulgated thereunder applicable to the SEC Documents, and none of the
         SEC Documents,  at the time they were filed with the SEC, contained any
         untrue statement of a material fact or omitted to state a material fact
         required  to be  stated  therein  or  necessary  in  order  to make the
         statements therein, in light of the circumstances under which they were
         made,  not  misleading.  As of their  respective  dates,  the financial
         statements of the Company included in the SEC Documents  complied as to
         form in all material respects with applicable  accounting  requirements
         and  the  published  rules  and  regulations  of the SEC  with  respect
         thereto.  No other  information  provided  by or on  behalf of Buyer to
         Seller or otherwise set forth in this  Agreement  which is not included
         in the SEC Documents  contains any untrue  statement of a material fact
         or omits to state  any  material  fact  necessary  in order to make the
         statements  therein, in the light of the circumstances under which they
         are or were made, not misleading.

                  (e) No Integrated Offering.  Neither the Buyer, nor any of its
         Affiliates,  nor any Person acting on its or their behalf has, directly
         or  indirectly,  made any offers or sales of any  security or solicited
         any offers to buy any security,  under circumstances that would require
         registration of the Securities under the 1933 Act or cause the issuance
         of the  Securities to be integrated  with prior  offerings by Buyer for
         purposes  of  the  1933  Act  or any  applicable  stockholder  approval
         provisions.

                  (f)  Brokers,  Finders  and Agents.  Buyer is not  directly or
         indirectly  obligated  to anyone  as a  broker,  finder or in any other
         similar  capacity in connection with this Agreement or the transactions
         contemplated hereby.

                  (g) Litigation.  There is no action, suit, Claim,  proceeding,
         inquiry  or  investigation  before  or  by  any  court,  public  board,
         Governmental  Authority,  self-regulatory  organization or body pending
         or, to the knowledge of Buyer, threatened against or affecting Buyer or
         its officers,  or the Common Stock,  wherein an  unfavorable  decision,
         ruling or finding would have a Buyer Material Adverse Effect.

                  (h)  Capitalization.  As of the date  hereof,  the  authorized
         capital stock of the Company  consists of 100,000,000  shares of Common
         Stock, of which as of July 24, 1998,  40,674,018 shares were issued and
         outstanding,  and 20,000,000 shares of convertible  preferred stock, of
         which as of the date hereof,  364,000 shares of  convertible  preferred
         stock were issued and outstanding.  All of such outstanding shares have
         been  validly  issued and are fully paid and  nonassessable.  Except as
         disclosed  in Schedule  6.2(h),  no shares of Common Stock or preferred
         stock are subject to preemptive  rights or any other similar  rights or
         any liens or  encumbrances  suffered or permitted  by Buyer.  Except as
         disclosed in Schedule 6.2(h),  as of the date hereof,  (i) there are no
         outstanding options,  warrants, scrip, rights to subscribe to, calls or
         commitments of any character  whatsoever  relating to, or securities or
         rights  convertible  into,  any  shares of capital  stock of Buyer,  or
         contracts,  commitments,  understandings or arrangements by which Buyer
         is or may become bound to issue  additional  shares of capital stock of
         Buyer or options,  warrants,  scrip,  rights to subscribe  to, calls or
         commitments of any character  whatsoever  relating to, or securities or
         rights  convertible into, any shares of capital stock of Buyer and (ii)
         there  are no  outstanding  debt  securities.  Except as  disclosed  in
         Schedule  6.2(h),  there are no  securities or  instruments  containing
         anti-dilution  or  similar  provisions  that will be  triggered  by the
         issuance of the  Securities as described in this  Agreement.  Buyer has
         furnished to Seller true and correct  copies of Buyer's  certificate of
         incorporation,  as  amended  and as in effect on the date  hereof,  and
         Buyer's by-laws,  as in effect on the date hereof, and the terms of all
         securities  convertible  into or  exercisable  for Common Stock and the
         material rights of the holders thereof in respect thereto.

                  (i) Absence of Certain Changes. As of the Closing Date, except
         as expressly  set forth in Schedule  6.2(i),  since  December 31, 1997,
         there has been no event,  occurrence,  or omission that has resulted in
         or could  reasonably be expected to result in a Buyer Material  Adverse
         Effect. Buyer has not taken any steps, and does not currently expect to
         take any steps, to seek protection  pursuant to any bankruptcy or other
         law, statute or judicial or other  proceeding  providing for the relief
         of debtors, nor does Buyer have any knowledge or reason to believe that
         its creditors intend to initiate involuntary bankruptcy proceedings.

                  (j)  Title.  Buyer has good and  defensible  title to all real
         property and good and marketable  title to all personal  property owned
         by it which is material to the  business of Buyer free and clear of all
         Liens, Claims, encumbrances and defects except such as are described in
         Schedule  6.2(j) or such as do not materially  affect the value of such
         property.  Any real property and  facilities  held under lease by Buyer
         are held under  valid,  subsisting  and  enforceable  leases  with such
         exceptions as are not material.

                  (k)  Insurance.  Buyer is insured by  insurers  of  recognized
         financial  responsibility  against  such  losses  and risks and in such
         amounts as is prudent and customary in the businesses in which Buyer is
         engaged.  Buyer has no reason  to  believe  that it will not be able to
         renew its existing insurance coverage as and when such coverage expires
         or to obtain similar coverage from similar insurers as may be necessary
         to  continue  its  business  at a cost that  would not  materially  and
         adversely  affect  the  condition,   financial  or  otherwise,  or  the
         earnings,   business,   properties  or  operations  of  Buyer  and  its
         subsidiaries, taken as a whole.

                  (l)  Permits.  Buyer  possesses  all  Permits  issued  by  the
         appropriate federal,  state or foreign regulatory authorities necessary
         to  conduct  its  business,  and Buyer has not  received  any notice of
         proceedings  relating to the  revocation  or  modification  of any such
         certificate, authorization or permit. To the best of Buyer's knowledge,
         no condition, event, occurrence or omission exists that would cause the
         revocation  or  modification  of any such  Permit,  except  where  such
         revocation  or  modification  would not have a Buyer  Material  Adverse
         Effect.


                       ARTICLE VII. CONDITIONS TO CLOSING

                  7.1 Conditions to Buyer's Obligations. The obligation of Buyer
to consummate the transactions  provided for by this Agreement is subject to the
satisfaction,  on or  prior  to the  Closing  Date,  of  each  of the  following
conditions,  any of which may be waived  by Buyer,  in whole or in part,  in its
sole discretion:

                  (a) Sale  Procedures  Order.  The Bankruptcy  Court shall have
         entered an order,  substantially in the form attached hereto as Exhibit
         C (or as otherwise reasonably  satisfactory to Buyer) ("Sale Procedures
         Order"),  which (i) will be in full force and effect, and (ii) will not
         have been reversed, modified, amended or stayed in any respect.

                  (b) Sale Order.  The  Bankruptcy  Court shall have  entered an
         order, in form and substance  satisfactory to Buyer (the "Sale Order"),
         which (i) will be in full force and effect on the Closing Date and (ii)
         will not have been reversed, modified, amended or stayed in any respect
         without the prior written consent of Buyer.

                  (c)    Representations    and   Warranties.    Each   of   the
         representations and warranties of Seller made in Sections 6.1 and 13.14
         of this  Agreement,  disregarding  all  qualifications  and  exceptions
         contained  therein  relating to materiality or Seller Material  Adverse
         Effect, shall be true and correct both on the date hereof and as of the
         Closing  Date  as  though  made  again  at such  time  with  only  such
         exceptions as would not in the aggregate reasonably be expected to have
         a material adverse effect.

                  (d)  Covenants.  Seller shall have performed and complied with
         all covenants  and  agreements,  disregarding  all  qualifications  and
         exceptions contained therein relating to materiality or Seller Material
         Adverse Effect,  required to be performed or complied with by it, at or
         prior to the Closing  Date,  with only such  exceptions as would not in
         the aggregate reasonably be expected to have a material adverse effect.

                  (e)      Material Adverse Effect.  The absence of any Seller
         Material Adverse Effect.

                  (f) No  Injunction.  No  judgment,  order or decree shall have
         been  entered  by any  Governmental  Authority  which has the effect of
         enjoining  or  prohibiting  the   consummation   of  the   transactions
         contemplated by this Agreement or the Seller Agreements.

                  (g) Certificate of Seller.  At the Closing,  Seller shall have
         delivered to Buyer a certificate  signed by the chief executive officer
         and chief financial  officer of Seller,  and dated the Closing Date, to
         the  effect  that  to the  best of the  knowledge  and  belief  of such
         officers the conditions  specified in Sections 7.1(c), (d), (e) and (f)
         have been fulfilled.

                  (h)  Hart-Scott-Rodino.  In  connection  with the HSR Act, the
         waiting  period  specified in Section  363(b) of the  Bankruptcy  Code,
         including  any  extensions  thereof,  shall have  expired or  otherwise
         terminated.

                  (i)  Berkeley  Leases.  Seller shall have entered into a lease
         with respect to each of the properties  listed on Schedule 7.1(i) for a
         term of at least one year from the date hereof.

                  (j)  Leases.  Seller  shall not have  rejected  any lease with
         respect to the  properties and term listed on Schedule  7.1(j).  Seller
         shall have entered into a sublease with Buyer for such  properties with
         substantially similar terms as the underlying leases.

                  (k)  Other   Documents.   Seller  shall  have   delivered  the
         agreements,  certificates and other documents required by Sections 5.2,
         and such other  documents as may be reasonably  necessary to effectuate
         the transactions contemplated by this Agreement.

                  7.2  Conditions to Seller's  Obligations.  The  obligations of
Seller to consummate the transactions provided for by this Agreement are subject
to the  satisfaction,  on or prior to the Closing Date, of each of the following
conditions,  any of which may be waived by Seller,  in whole or in part,  in its
sole discretion:

                  (a)      Sale  Procedures  Order.  The  Bankruptcy  Court
         shall have entered the Sale  Procedures Order.
     
                  (b) Sale Order.  The  Bankruptcy  Court shall have entered the
         Sale Order which (i) will be in full force and effect and (ii) will not
         have been reversed,  modified, amended or stayed in any respect without
         the prior written consent of Seller.

                  (c)    Representations    and   Warranties.    Each   of   the
         representations  and warranties of Buyer made in Sections 6.2 and 13.14
         of this  Agreement,  disregarding  all  qualifications  and  exceptions
         contained  therein  relating to materiality  or Buyer Material  Adverse
         Effect, shall be true and correct both on the date hereof and as of the
         Closing  Date  as  though  made  again  at such  time  with  only  such
         exceptions as would not in the aggregate reasonably be expected to have
         a material adverse effect.

                  (d)  Covenants.  Buyer shall have  performed and complied with
         all covenants  and  agreements,  disregarding  all  qualifications  and
         exceptions  contained therein relating to materiality or Buyer Material
         Adverse Effect,  required to be performed or complied with by it, at or
         prior to the Closing  Date,  with only such  exceptions as would not in
         the aggregate reasonably be expected to have a material adverse effect.

                  (e) No  Injunction.  No  judgment,  order or decree shall have
         been  entered  by any  Governmental  Authority  which has the affect of
         enjoining  or  prohibiting  the   consummation   of  the   transactions
         contemplated by this Agreement or the Buyer Agreements.

                  (f)  Certificate  of Buyer.  At the Closing,  Buyer shall have
         delivered to Seller a Certificate signed by the chief executive officer
         and chief  financial  officer of Buyer,  and dated the Closing Date, to
         the  effect  that to the best of the  knowledge  of such  officers  the
         conditions   specified  in  Section  7.2(c),  (d)  and  (e)  have  been
         fulfilled.

                  (g)  Hart-Scott-Rodino.  In  connection  with the HSR Act, the
         waiting  period  specified in Section  363(b) of the  Bankruptcy  Code,
         including  any  extensions  thereof,  shall have  expired or  otherwise
         terminated.

                  (h)  Other   Documents.   Buyer  shall  have   delivered   the
         agreements,  certificates and other documents  required by Section 5.3,
         and such other  documents as may be reasonably  necessary to effectuate
         the transactions contemplated by this Agreement.


                        ARTICLE VIII. COVENANTS OF SELLER

                  8.1      Bankruptcy Court Matters.

                  (a) Sale Procedures Order; Sale Order.  Seller shall file with
         the Bankruptcy Court (i) as soon as is reasonably practicable after the
         date hereof but in no event later than  September 18, 1998, a motion or
         motions  seeking  the  entry  by  the  Bankruptcy  Court  of  the  Sale
         Procedures  Order,  and (ii) within three Business Days after the entry
         of the Sale Procedures  Order (unless  otherwise  stayed),  a motion or
         motions seeking entry by the Bankruptcy  Court of the Sale Order,  each
         such motion in a form reasonably  satisfactory to Buyer. Notice of both
         such motions shall be given in a manner  satisfactory to Buyer,  and in
         any event in compliance  with the  Bankruptcy  Code and the  applicable
         rules thereunder. After such filing(s), Seller shall use its reasonable
         efforts to obtain entry by the Bankruptcy  Court of the Sale Procedures
         Order and,  subject to the terms and  conditions of the Sale  Procedure
         Order, Sale Order.

                  (b)  Objections.  In the event any  objections are made to the
         motion or motions  for entry of the Sale  Procedures  Order  and/or the
         Sale Order,  Seller shall promptly  notify Buyer of such objections and
         shall supply copies of such objections and Seller's  responses  thereto
         to Buyer.

                  (c)  Appeals.  In the event an  appeal is taken  from the Sale
         Procedures  Order or Sale Order,  Seller shall promptly notify Buyer of
         such appeal and shall as soon as possible but in any event within three
         business  days  provide  Buyer  with a copy of the  related  notice  of
         appeal.  Seller  shall also provide  Buyer with  written  notice of any
         motions or  applications  filed in connection  with any appeal from the
         Sale Procedures Order or Sale Order.

                  (d)  Compliance  with  Orders.  Seller  shall  comply  in  all
         respects with the Sale Procedures Order and the Sale Order.

                  8.2 Termination Fee. Subject to the approval of the Bankruptcy
Court  pursuant  to the Sale  Procedures  Order,  in  consideration  for Buyer's
efforts and expenses  incurred under this Agreement,  Buyer shall be entitled to
receive from Seller a termination fee equal to $500,000 (the "Termination Fee"),
in the event that a Person  other than  Buyer is the  successful  bidder and the
Bankruptcy  Court  approves a sale of the Acquired  Assets to such  Person.  The
Termination  Fee shall be payable  immediately  after the closing of the sale to
the  Winning  Bidder  (as  defined  in the Sale  Procedures  Order) or after any
deposit  made by such Winning  Bidder is  forfeited to the Seller,  whichever is
earlier,  and shall be payable  solely  from the  consideration  received by the
Seller.

                  8.3 Conduct of Business.  Except as disclosed to and agreed to
by Buyer, during the period from the date hereof through the Closing Date, other
than in connection with the pursuit or defense, in a manner that does not have a
material adverse effect on the Business or the Acquired Assets, of Claims in the
Chapter 11 Case and related proceedings, Seller will (i) conduct and operate the
Business and the Acquired Assets (including,  without limitation, the collection
of Accounts  Receivable) in the ordinary and normal course  (including,  without
limitation,  using its best  efforts to preserve  the  beneficial  relationships
between  Seller and its  vendors,  agents,  lessors,  suppliers,  employees  and
customers),  (ii) continue in force all insurance policies covering the Acquired
Assets  and the  Business  and (iii)  continue  normal  maintenance,  marketing,
advertising,  distribution  and promotional  expenditures in connection with the
Business.  Without  limiting  the  generality  of the  foregoing  and  except as
otherwise  expressly  provided in this Agreement or unless Buyer shall otherwise
consent in writing, which consent shall not be unreasonably withheld, during the
period from the date hereof through the Closing Date, Seller shall not:

                  (a)  Sale  of  Assets.  Sell,  transfer,   lease,  license  or
         otherwise  dispose  of or agree to sell,  transfer,  lease,  license or
         otherwise dispose of any Acquired Assets, or permanently  remove any of
         the  Acquired  Assets  from the  Seller's  places of  business,  except
         Inventory  sold or used or  receivables  collected  in the ordinary and
         normal  course  of  operating  the  Business  and  consistent  with the
         representations,  warranties, covenants, obligations and agreements set
         forth in this Agreement;

                  (b) Commitments. Enter into any other agreements, commitments,
         contracts or undertakings, except agreements, commitments, contracts or
         understandings  made in the ordinary and normal course of operating the
         Business  consistent with the  representations and warranties of Seller
         contained in this Agreement;

                  (c) Contract  Rights,  Etc.  Reject  under  Section 365 of the
         Bankruptcy  Code,  voluntarily  waive or  release  any of its  material
         rights  under,  materially  amend or  otherwise  materially  modify any
         Assumed Contracts, Intellectual Property Rights or Transferred Permits;

                  (d) Encumbrances. Encumber or grant or create a Lien on any of
         the Acquired Assets,  other than Permitted Liens or any other Lien that
         by its terms expires prior to the Closing; or

                  (e)  Representations  and  Warranties.  Take any  actions  the
         taking of which,  or omit to take any  action  the  omission  of which,
         would cause any of the  representations  and  warranties  contained  in
         Section  6.1 to fail to be true and correct as of the Closing as though
         made at and as of the Closing Date.

                  8.4      Access; Information; Permits.

                  (a)  Access.  From the date hereof  through the Closing  Date,
         Buyer and Buyer's counsel,  accountants,  representatives,  lenders and
         agents   (including,    without   limitation,   Buyer's   environmental
         consultants,  contractors and engineers)  shall have reasonable  access
         during normal  business  hours upon  reasonable  advance  notice to all
         personnel, offices, properties, books and records of Seller relating to
         the Business  and shall be furnished  all  information  concerning  the
         business,  finances,  affairs and properties of Seller  relating to the
         Business,  the Acquired Assets and the Assumed  Liabilities as they may
         reasonably request;  provided,  however,  that Buyer shall not be given
         access to, or provided with,  Seller's  formulas,  production  methods,
         know-how and technical  expertise relating to the testing services,  or
         any  other  information  the  disclosure  of which  would  violate  any
         applicable law, contract,  Permit or license of Seller,  which shall be
         provided to Buyer at the Closing.

                  (b) Current  Information.  The Seller will promptly (i) during
         the  period  from the  date  hereof  to the  Closing,  furnish  or make
         available  to Buyer  copies of  Seller's  management  packages  and all
         operating   reports  and  monthly,   quarterly  and  interim  financial
         statements  relating to the Business and  otherwise  prepared by Seller
         (including any reports furnished to Seller's  creditors),  (ii) furnish
         to  Buyer  copies  of any  and all  Bankruptcy  Court  filings  made or
         received by the Seller in connection with the Chapter 11 Case and (iii)
         notify  Buyer  of the  receipt  of any  notice  from  any  Governmental
         Authority or third party alleging  Seller is liable or responsible  for
         costs  associated  with  the  response  to  cleanup,  stabilization  or
         neutralization  of any  environmental  deficiency  or that Seller is in
         violation of any  Environmental  Law. On the first Business Day of each
         week  during the period  from and after the date  hereof to the Closing
         Date,  on a rolling  two week  basis,  Seller  will  provide to Buyer a
         written report (the "Seller Accession  Report") detailing the aggregate
         number of  Seller's  Accessions  during  such two week  period  and the
         number  of  Seller's  Accessions  on each day of such two week  period,
         together with a calculation of the Average Daily  Accession,  Accession
         Reduction and the Accession  Reduction  Percentage during such two week
         period,  and Buyer shall, on the first Business Day of each week during
         the period  from and after the date hereof to the  Closing  Date,  on a
         rolling  two week  basis,  provide to the Seller a written  report (the
         "Buyer   Accession   Report")   detailing   the  Average  Daily  Unilab
         Accessions.

                  (c) Permits.  If the Transferred Permits cannot be transferred
         by the Seller to the Buyer without the approval of or other action by a
         Governmental Authority, Seller shall file such notices and applications
         as Buyer shall  reasonably  request to  effectuate  the transfer of the
         Transferred Permits to, or reissuance of the Transferred Permits in the
         name of,  the  Buyer and shall  otherwise  cooperate  with the Buyer to
         secure such transfer or reissuance.

                  8.5  Closing.  Seller  shall use its  commercially  reasonable
efforts to cause the  conditions set forth in Section 7.1 to be satisfied by the
Closing Date.

                  8.6 Confidentiality. Subject to the requirements of applicable
law and Seller's  disclosure  obligations to the Bankruptcy Court, its creditors
and other parties in interest, Seller (a) will continue to abide by the terms of
that certain letter agreement regarding confidentiality between Buyer and Seller
dated  January  28,  1998,  which  shall  remain  in full  force  and  effect in
accordance with and subject to its terms, (b) will, and will cause its officers,
employees,  representatives,   consultants,  advisors  or  agents,  to  hold  in
confidence  all  information  which  remains in the  possession of Seller or its
Affiliates  concerning  the Business  and the  Acquired  Assets and (c) will not
release or disclose any such  information to any Person other than Buyer and its
authorized representatives;  provided that Seller shall be permitted to disclose
such   information   in   response  to  any  order  or  request  of  any  court,
administrative or governmental  body, and compulsory process binding upon Seller
or otherwise as required by law but only after first informing Buyer of any such
obligation,  to the extent  practicable,  and providing  Buyer with a reasonable
opportunity to protect against such disclosure.

                  8.7 Inventories.  Prior to the Closing,  Seller shall maintain
levels of all  Inventory  at levels  consistent  with  current  practice  in the
ordinary and normal course of business of the Business.

                  8.8 No Shopping or  Disclosure.  From the date hereof  through
and until the earlier of termination  of this Agreement  pursuant to Article XII
or the Closing, (a) Seller shall not and shall use its best efforts to cause its
officers, employees, representatives,  consultants, advisors (including, without
limitation,  Seller's financial advisors), affiliates or agents to not, directly
or indirectly, solicit, initiate or encourage any inquiries, proposals or offers
from any Person  relating to any  acquisition,  directly or  indirectly,  of the
Acquired  Assets  or  the  Business,  or  any  securities  of,  or  any  merger,
consolidation or business  combination with,  Seller,  except in accordance with
the Sale Procedures  Order and (b) if Seller shall receive any offer or proposal
for any of the Acquired  Assets,  or other written proposal or offer of the type
described above,  Seller shall promptly provide Buyer with written  notification
of such  offer or  proposal,  which  notification  shall  include  the terms and
conditions of such offer or proposal and any other information relevant thereto,
including  any  written or other  materials  available  to Seller in  connection
therewith.

                  8.9 HSR Act. The Seller  shall  timely and  promptly  make all
filings  which are required  under the HSR Act. The Seller shall  furnish to the
Buyer such  necessary  information  and  reasonable  assistance as the Buyer may
reasonably  request in connection  with the Buyer's  preparation  of any filings
necessary under the provisions of the HSR Act. The Seller shall supply the Buyer
with copies of, and Buyer shall have the right to review and comment on the form
and substance of, all  correspondence,  filings or communications  (or memoranda
setting forth the substance  thereof) between the Seller or its counsel,  on the
one hand, and the Federal Trade Commission (the "FTC"),  the Antitrust  Division
of the United  States  Department of Justice (the  "Antitrust  Division") or any
other  foreign,  federal,  state,  county  or  local  government  or  any  other
governmental,  regulatory  or  administrative  agency or authority or members of
their respective  staffs,  on the other hand, with respect to this Agreement and
the transactions contemplated hereby.

                  8.10 Tail  Insurance.  Seller  shall  obtain  and keep in full
force and effect tail insurance that complies with the representation  contained
in  Section  6.1(x)  for the  benefit of Buyer  covering  errors  and  omissions
including,  without  limitation,  malpractice  claims,  directors  and  officers
insurance and other  professional  claims,  relating to the conduct by Seller of
the Business prior to the Closing.

                  8.11 Audited Financial  Statements.  The Seller shall deliver,
as soon as is  practicable  and in any event  within 60 days  after the  Closing
Date,  financial  statements for its three fiscal years ended December 31, 1995,
December 31, 1996 and December 31, 1997, audited by independent certified public
accountants, and unaudited financial statements for the nine month periods ended
September 30, 1997 and September 30, 1998.


                         ARTICLE IX. COVENANTS OF BUYER

                  Buyer hereby covenants and agrees that:

                  9.1  Representations  and Warranties.  Buyer will not take any
actions the taking of which,  or omit to take any action the  omission of which,
would cause any of the representations  and warranties  contained in Section 6.2
to fail to be true and  correct in any  material  respect  as of the  Closing as
though made at and as of the Closing Date.

                  9.2 Confidentiality. Subject to the requirements of applicable
law, Buyer will continue to abide by the terms of that certain letter  agreement
regarding confidentiality between Buyer and Seller dated January 28, 1998, which
shall  remain in full force and  effect in  accordance  with and  subject to its
terms,  and will,  and will  cause  its  officers,  employees,  representatives,
consultants,  advisors and agents to, hold in strict  confidence all information
concerning  the Seller which remains in  possession of Buyer or its  Affiliates,
the Business and the  Employees;  provided that any of the  foregoing  shall not
apply after the  Closing  with  respect to any such  documents  and  information
relating  exclusively  to the  Acquired  Assets  and  Assumed  Liabilities,  and
provided  further that Buyer shall be permitted to disclose such  information in
response to any order or request of any court,  administrative  or  governmental
body, and compulsory  process binding upon Buyer or otherwise as required by law
but only after  first  informing  Seller of any such  obligation,  to the extent
practicable,  and  providing  Seller with a  reasonable  opportunity  to protect
against such disclosure.

                  9.3  Closing.  Buyer  will  use  its  commercially  reasonable
efforts to cause the  conditions set forth in Section 7.2 to be satisfied by the
Closing Date.

                  9.4  Reservation  of  Shares.  Buyer  shall  take  all  action
necessary  to at all times have  authorized,  and  reserved  for the  purpose of
issuance,  no less than the number of shares of Common  Stock  needed to provide
for the issuance of the  Conversion  Shares upon  conversion of the  Convertible
Note in accordance with the terms thereof.

                  9.5 Financial Information.  Buyer agrees to send the following
to Seller during the period that Seller holds the  Convertible  Note: (i) within
five (5) days  after  the  filing  thereof  with the SEC,  a copy of its  Annual
Reports on Form 10-K, its Quarterly Reports on Form 10-Q, any Current Reports on
Form 8-K and any  registration  statements or amendments  filed  pursuant to the
1933 Act;  (ii) within one (1) day after  release  thereof,  copies of all press
releases issued by Buyer; and (iii) copies of any notices and other  information
made   available   or   given   to  the   stockholders   of   Buyer   generally,
contemporaneously   with  the  making   available  or  giving   thereof  to  the
stockholders.

                  9.6 Default in Cash Payment.  In the event that Buyer fails to
pay as and when due any  installment  of the Cash  Payment  pursuant  to Section
4.1(b) and such failure  shall remain  unremedied  for five  Business Days after
receipt  of  written  notice  from the  Seller,  interest  shall  accrue on such
defaulted amount at the rate of 15% per annum from the date such payment was due
to the date paid.

                  9.7 HSR Act.  The Buyer  shall  timely and  promptly  make all
filings  which are required  under the HSR Act.  The Buyer shall  furnish to the
Seller such necessary  information  and reasonable  assistance as the Seller may
reasonably  request in  connection  with  Seller's  preparation  of any  filings
necessary under the provisions of the HSR Act. The Buyer shall supply the Seller
with  copies of all  correspondence,  filings or  communications  (or  memoranda
setting forth the substance  thereof)  between the Buyer or its counsel,  on the
one hand,  and the FTC, the Antitrust  Division or any other  foreign,  federal,
state,  county or local  government  or any other  governmental,  regulatory  or
administrative agency or authority or members of their respective staffs, on the
other hand,  with respect to this  Agreement and the  transactions  contemplated
hereby.


                     ARTICLE X. CERTAIN ADDITIONAL COVENANTS

                  10.1  Expenses;  Bulk Sales.  Except as otherwise set forth in
this  Agreement,  each party  hereto will bear the legal,  accounting  and other
expenses  (including  brokers'  commissions or finders' fees and, in the case of
Buyer,  all HSR Act filing fees) incurred by such party in connection  with this
Agreement,  and the other agreements and transactions  contemplated  hereby. The
parties hereby waive  compliance with the requirements of the bulk sales or bulk
transfer laws of all applicable jurisdictions in connection with the sale of the
Acquired Assets to Buyer.

                  10.2 Press  Releases.  Except as pursuant to Section  8.1, the
parties  agree that  neither  Seller nor Buyer nor their  respective  Affiliates
shall  issue  or  cause  publication  of  any  press  release  or  other  public
announcement  (including  to  customers  and  employees  of  Seller)  or  public
communication  with respect to this Agreement or the  transactions  contemplated
hereby without the consent of the other, which consent shall not be unreasonably
withheld;  provided,  however,  that nothing  herein shall prohibit any party in
consultation  with the other from  issuing or causing  publication  of any press
release,  public  announcement or public  communication  to the extent that such
party,  upon advice of counsel,  reasonably  deems such action to be required by
law.

                  10.3     Employee Matters.

                  (a) Employee  Benefits.  Except as set forth in Section 3.2(d)
         hereof,  the parties  acknowledge that Buyer shall have no liability or
         obligation whatsoever with respect to Employee  Liabilities,  nor shall
         Buyer have any  obligation  to provide  any  employee  benefits  to any
         Employees other than to Retained Employees.

                  (b)  Employment at Closing.  Seller,  acting as Buyer's agent,
         shall have given any and all notices required to be given under WARN in
         connection  with the  transactions  contemplated  by this  Agreement as
         directed by Buyer. At the Closing, Buyer intends to offer employment to
         certain  Employees  of Seller in the  Business,  and on such  terms and
         conditions  (including  length of employment) as Buyer may, in its sole
         discretion,  determine  (any such Employees who accept Buyer's offer of
         employment and actually commence  employment with Buyer are referred to
         herein  as  "Retained  Employees"),  but  Buyer  shall not be under any
         obligation  to hire any or all  Employees or any  particular  Employees
         under this  Agreement or for any other  reason.  Buyer shall not assume
         responsibility  for any Retained Employee until such employee commences
         employment  with Buyer.  Prior to the Closing,  upon  reasonable  prior
         notice to  Seller,  Buyer  may  communicate  with any of the  Employees
         currently employed in the Business.

                  (c)  Employee   Information.   Subject  to  applicable   legal
         restrictions, prior to the Closing, Seller shall provide to Buyer, in a
         timely manner,  any applicable  personnel records and information which
         Buyer may  reasonably  request  with respect to any Employee of Seller.
         Seller shall not in any way participate in Buyer's  decision to hire or
         not to hire any Employee of Seller. Buyer shall provide to any Retained
         Employee  Forms W-2,  Wage and Tax  Statement,  for the  calendar  year
         ending  December  31,  1998  setting  forth  the  wages  paid and taxes
         withheld  with  respect  to such  Employees  by the Seller and Buyer as
         predecessor  and  successor  employers,  respectively,  as  provided by
         Section 5 of Revenue Procedure 84-77.

                  10.4  Customer  List.  Within two Business Days after the date
that the Bankruptcy  Court enters the Sale Procedures  Order,  and provided that
the Buyer has  executed  an  Agreement  Not To  Solicit in the form of Exhibit D
hereto, Seller shall provide Buyer with the Customer List.

                  10.5 Further Assurances.  From time to time after the Closing,
at Buyer's  expense,  Seller  shall  execute  and  deliver  such  documents  and
instruments  of conveyance  and transfer and take such other action as Buyer may
reasonably request in order to consummate more effectively the purchase and sale
of the Acquired Assets as contemplated  hereby and the vesting in Buyer of title
to the  Acquired  Assets as  contemplated  hereby.  From time to time  after the
Closing, at Seller's expense, Buyer shall execute and deliver such documents and
take such other action as Seller may  reasonably  request in order to consummate
more  effectively  the purchase and sale of the Acquired  Assets as contemplated
hereby and the assumption by Buyer of the Assumed Liabilities.

                              ARTICLE XI. INDEMNITY

                  11.1 Indemnification by Buyer. (a) From and after the Closing,
Buyer shall indemnify  Seller and its Affiliates and hold them harmless from and
against  and in  respect  of any  and all  damages,  Claims,  losses,  expenses,
obligations and liabilities (including, without limitation,  reasonable expenses
of  investigation  and  reasonable  attorneys'  fees and  expenses)  ("Damages")
claimed or  assessed  against any of them as to which any of them may be subject
in connection with (i) any misrepresentation or breach of warranty,  covenant or
agreement  made or to be  performed  by Buyer  under  this  Agreement,  (ii) the
Assumed Liabilities or (iii) the Buyer's operation of the Business following the
Closing.  In the event Seller seeks to claim amounts under this Section 11.1(a),
Seller shall give reasonable written notice to Buyer and shall not settle Claims
for any such amounts without the prior written  consent of Buyer,  which consent
shall not be unreasonably withheld.

                  (b)  Buyer  may,  at its  option,  elect to  assume  exclusive
control  over any  defense in respect of any and all  damages,  Claims,  losses,
expenses,  obligations and liabilities claimed or assessed against Seller or any
of its Affiliates in connection with the Assumed Liabilities.  In the event that
Buyer assumes exclusive control over any defense,  Seller shall only be entitled
to  indemnification  for any costs incurred prior to the date Buyer assumes such
defense. Seller shall, in any event, cooperate in such defense.

                  11.2  Indemnification  by  Seller.  (a)  From  and  after  the
Closing,  Seller shall indemnify Buyer and its Affiliates and hold them harmless
from and  against  and in respect  of any and all  Damages  claimed or  assessed
against  any of them as to which any of them may be subject in  connection  with
(i) any  misrepresentation  or breach of warranty,  covenant (other than Section
8.11) or  agreement  made or to be  performed  by Seller  under this  Agreement,
including,  without  limitation  all  Damages  arising out of or relating to any
Environmental Law or (ii) the Retained Liabilities.  In the event Buyer seeks to
claim amounts under this Section  11.2(a),  Buyer shall give reasonable  written
notice to Seller and shall not settle  Claims for any such  amounts  without the
prior  written  consent  of  Seller,  which  consent  shall not be  unreasonably
withheld.

                  (b) Buyer  shall  offset and recoup any amounts to which it is
entitled under Section 11.2(a) first against the amounts otherwise payable by it
pursuant to Section 4.1(b),  the Buyer's  obligations  under such Section 4.1(b)
being  thereupon  reduced and  extinguished  to such extent;  Buyer shall not be
entitled to offset or recoup against the  Convertible  Note any amounts to which
it is entitled  under  Section  11.2(a)  except to the extent that such  amounts
exceed the amounts  otherwise  payable by it pursuant  to Section  4.1(b)  after
giving effect to any purchase  price  adjustment  pursuant to Section 4.2. Buyer
shall promptly notify Seller of any offset or recoupment  taken pursuant to this
Section 11.2(b).


                            ARTICLE XII. TERMINATION

                  12.1   Termination.   This  Agreement  and  the   transactions
contemplated hereby may be terminated  (constituting a "Termination"  hereunder)
at any time prior to the Closing:

                  (a)      Mutual Consent.  By mutual written consent of Seller
         and Buyer;

                  (b) Seller's  Misrepresentation  or Breach. By Buyer, if there
         has been a breach by Seller of any of its representations,  warranties,
         covenants,  obligations or agreements set forth in this Agreement or in
         any writing delivered  pursuant hereto by Seller,  which breach results
         in a Seller Material Adverse Effect;

                  (c) Accession  Termination  Event. By Buyer, if no Termination
         of this  Agreement has occurred for any other  reason,  the sale of the
         Acquired  Assets to the Buyer  pursuant to this  Agreement has not been
         consummated  by November 2, 1998,  and an Accession  Termination  Event
         occurs;

                  (d) Buyer Misrepresentation or Breach. By Seller, if there has
         been a  breach  by  Buyer  of any of its  representations,  warranties,
         covenants,  obligations or agreements set forth in this Agreement or in
         any writing delivered pursuant hereto by Buyer, which breach results in
         a Buyer Material Adverse Effect;

                  (e) Failure to Consummate  Sale.  Automatically,  if (i) after
         the hearing  thereon,  the Bankruptcy  Court declines to approve either
         the  Sale  Procedures  Order or the Sale  Order or  subsequent  to such
         approval revokes the Sale Procedures Order or (ii) the Bankruptcy Court
         authorizes the sale by Seller of any of the Acquired Assets to a Person
         other  than  Buyer,  or  (iii) no  Termination  of this  Agreement  has
         occurred for any other  reason and the sale of the  Acquired  Assets to
         Buyer  pursuant to this  Agreement has not been  consummated  within 90
         days after the date of this Agreement.

                  12.2 Effect of  Termination.  If this  Agreement is terminated
pursuant to Section 12.1, this Agreement shall  thereafter  become void and have
no  further  force and effect and all  further  obligations  of Seller and Buyer
under this Agreement  shall  terminate  without  further  liability of Seller or
Buyer,  except (a) for the  obligations  of Seller and Buyer under this  Section
12.2 and Sections 8.2, 9.2 and 10.1 and (b) subject to this Section  12.2,  that
such termination  shall not constitute a waiver by any party of any claim it may
have for damages  caused by reason of or relieve any party from  liability  for,
any breach of this Agreement prior to termination under Section 12.1.


                           ARTICLE XIII. MISCELLANEOUS

                  13.1 Survival.  The  representations  and  warranties  made by
Seller and Buyer in this  Agreement  shall  survive the Closing  with respect to
their  accuracy  as of the Closing  Date until one year after the  Closing  Date
(except that the representations and warranties in Sections 6.1(j) and (k) shall
survive   until  two  years   after  the   Closing   Date),   after  which  such
representations  and warranties shall terminate and expire.  Notwithstanding the
preceding sentence, any representation or warranty in respect of which indemnity
may be sought  under this  Agreement  shall  survive  the time at which it would
otherwise  terminate  pursuant  to the  preceding  sentence,  if  notice  of the
inaccuracy  thereof giving rise to such right of indemnity shall have been given
to the party against whom such indemnity may be sought prior to such time.

                  13.2     Amendments.  This  Agreement  may be amended  only
by a writing  executed  by all of the parties hereto.

                  13.3 Matters Relating to Accounts  Receivable,  Etc. Following
the  Closing,  Buyer  may  receive  and open all  mail  and  facsimile  messages
addressed to Seller and deal with the contents  thereof in its discretion to the
extent  that such mail or  facsimiles  and the  contents  thereof  relate to the
Acquired Assets or Assumed  Liabilities.  Buyer agrees to deliver or cause to be
delivered to Seller all other mail.

                  13.4 Entire Agreement.  Except as provided in Section 8.6 with
respect to that certain letter agreement regarding confidentiality between Buyer
and Seller  dated  January 28, 1998,  this  Agreement  and the other  agreements
expressly provided for herein set forth the entire agreement of the parties with
respect  to  the  transactions  contemplated  hereby  and  supersede  all  prior
contracts,   agreements,    arrangements,    communications   and   discussions,
representations and warranties, whether oral or written, between the parties.

                  13.5 Governing  Law. This  Agreement  shall in all respects be
governed by and construed in  accordance  with the internal laws of the State of
California without regard to conflict of laws principles.

                  13.6  Notices.  Any  notice,  request  or other  communication
required or permitted  hereunder shall be in writing and shall be deemed to have
been duly given (a) when received, if personally  delivered,  (b) upon the fifth
calendar day after being sent by registered or certified  mail,  return  receipt
requested,  postage  prepaid,  (c) upon being sent by telecopy,  with  confirmed
answerback  and (d) on the first  business  day after being sent by  established
overnight courier, to the parties at their respective addresses set forth below.

         To Seller:           Meris Laboratories, Inc.
                              1075 East Brokaw Road
                              San Jose, California  95131
                              Attn:  Philip A. Tremonti
                              Fax No.:  (408) 453-8093

         With a copy to:      Philip A. Tremonti
                              c/o PricewaterhouseCoopers
                              400 South Hope Street, 21st Floor
                              Los Angeles, California  90071-2889
                              Fax No.:  (213) 452-7910

         With a copy to:      Milbank, Tweed, Hadley & McCloy
                              601 South Figueroa Street, 30th Floor
                              Los Angeles, California  90017
                              Attn: Robert Jay Moore
                              Fax No.: (213) 629-5063

         With a copy to:      Madeleine, L.L.C.
                              c/o Cerberus Partners
                              450 Park Avenue, 28th Floor
                              New York, New York  10022
                              Attn:  Robert Davenport
                              Fax No.: (212) 891-1541

         With a copy to:      Schulte Roth & Zabel LLP
                              900 Third Avenue
                              New York, New York  10022
                              Attn.:  Mark A. Broude
                              Fax No.:  (212) 593-5955

         To Buyer:            Unilab Corporation
                              401 Hackensack Avenue
                              Hackensack, New Jersey  07601
                              Attn: Mark Bibi
                              Fax No.:  (201) 525-1331

         With a copy to:      Greenberg Glusker Fields Claman & Machtinger LLP
                              1900 Avenue of the Stars (Century City)
                              21st Floor
                              Los Angeles, California 90067
                              Attn:  Marc Cohen
                              Fax No.:  (310) 553-0687

         With a copy to:      Davis Polk & Wardwell
                              450 Lexington Avenue
                              New York, New York  10017
                              Attention: Donald S. Bernstein
                              Fax No.:  (212) 450-4800

Any party by written notice to the others given in accordance  with this Section
12.6 may change the  address or the  persons to whom  notices or copies  thereof
shall be directed.

                  13.7  Counterparts.  This  Agreement  may be  executed  in any
number of counterparts, each of which shall be deemed to be an original, and all
of which together will constitute one and the same instrument.

                  13.8  Assignment.  This  Agreement  shall be binding  upon and
inure  to the  benefit  of the  successors  and  assigns  of each  party  hereto
(including  any  trustee  appointed  in respect of Seller  under the  Bankruptcy
Code), but no rights,  obligations or liabilities  hereunder shall be assignable
by any party without the prior written consent of the other party.

                  13.9  Waivers.  Any waiver by any party of any  violation  of,
breach  of or  default  under  any  provision  of this  Agreement  or any  other
agreements provided for herein, by the other party shall not be construed as, or
constitute,  a  continuing  waiver  of such  provision,  or  waiver of any other
violation of, breach of or default under any other  provision of this  Agreement
or any other agreements provided for herein.

                  13.10  Third  Parties.  Nothing  expressed  or implied in this
Agreement is intended, or shall be construed,  to confer upon or give any Person
other than Buyer and Seller,  any rights or remedies  under or by reason of this
Agreement.

                  13.11  Schedules  and  Exhibits.  The  Schedules  and Exhibits
attached to this  Agreement  are  incorporated  herein and shall be part of this
Agreement for all purposes;  provided, however, that Seller shall have the right
to update and/or  supplement any or all of the Schedules by providing Buyer with
such updated and/or supplemented schedules not later than five days prior to the
Closing Date.  Buyer shall have the right to review the revised  Schedules for a
period of three days after  receipt  thereof.  At any time  within the three day
time period Buyer shall have the right to terminate  this Agreement by notice to
Seller if the revised  information would reasonably be likely to have a material
adverse effect on the business of Buyer.  This notice,  if given,  shall specify
the  information  forming the basis for the decision to terminate.  Seller shall
have two days after  receipt of the notice to review with Buyer the  information
forming  the basis  for the  decisions  and to  attempt  to agree on  corrective
measures, if any. If the parties cannot agree on corrective measures within such
two day period,  then this Agreement  shall  terminate.  If the Agreement is not
terminated as permitted by this Section,  Buyer shall be deemed to have accepted
such  revisions,  and the  Schedules  attached to this  Agreement as of the date
hereof shall be deemed to be superseded by the revised Schedules.

                  13.12 Headings.  The headings in this Agreement are solely for
convenience  of reference and shall not be given any effect in the  construction
or interpretation of this Agreement.

                  13.13 Effective Time. This Agreement shall become effective if
and only if the Bankruptcy  Court enters the Sale Procedures  Order and approves
the termination fees as contained therein.

                  13.14 Absence of Breach. As of the date hereof,  the Buyer has
no knowledge of any breach by Seller of any of its representations or warranties
set forth in this  Agreement  or in any  writing  delivered  by Seller,  and the
Seller has no knowledge of any breach by the Buyer of any of its representations
or  warranties  set forth in this  Agreement or in any writing  delivered by the
Buyer.

                  13.15.  Access to Records.  Buyer and Seller shall each permit
the  other  party  reasonable  access  to  the  Records  and  Retained  Records,
respectively,  and shall  permit  the other  party,  at the  requesting  party's
expense,  to make copies of the Records and the  Retained  Records and to access
any computer software or hardware  containing,  or permitting the processing of,
such Records or Retained Records,  respectively, on reasonable notice and during
normal  business  hours.  If Buyer or Seller  wishes to destroy  the  Records or
Retained  Records,  respectively,  or any  material  portion  thereof,  it shall
provide the other party with ten (10) days prior  written  notice and such other
party shall have the option,  at its expense and upon written notice within such
ten (10) day period, to take possession of such Records or Retained Records,  as
the case may be, within fifteen (15) days of its receipt of the initial notice.



<PAGE>



                  IN  WITNESS  WHEREOF,  the  parties  have  caused  their  duly
authorized  representatives to execute this Agreement as of the date first above
written.

                                MERIS LABORATORIES, INC., as debtor and
                                debtor-in-possession


                                By:
                                Name:
                                Title:


                                UNILAB CORPORATION


                                By:
                                Name:
                                Title:




<PAGE>




         NEITHER THIS NOTE NOR THE SHARES OF THE ISSUER'S  COMMON STOCK ISSUABLE
UPON CONVERSION HEREOF HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS. THIS NOTE HAS BEEN
(AND ANY SUCH  SHARES  WILL BE)  ACQUIRED  FOR THE ACCOUNT OF THE HOLDER AND NOT
WITH A VIEW TOWARDS,  OR FOR RESALE IN CONNECTION WITH A PUBLIC OFFERING AND MAY
NOT BE OFFERED  FOR SALE,  SOLD,  TRANSFERRED  OR  ASSIGNED IN THE ABSENCE OF AN
EFFECTIVE  REGISTRATION  STATEMENT  FOR THIS NOTE  UNDER THE  SECURITIES  ACT OR
APPLICABLE  STATE  SECURITIES  LAW, OR AN EXEMPTION  FROM SUCH  REGISTRATION  OR
UNLESS SOLD PURSUANT TO RULE 144 UNDER THE SECURITIES ACT.

         No. 1                                                 $14,000,000

                               UNILAB CORPORATION

                   7.5% Convertible Subordinated Note Due 2006



         Unilab Corporation,  a Delaware  corporation (the "Issuer"),  for value
received, hereby promises to pay to Meris Laboratories,  Inc. (the "Holder") and
its  successors,  transferees  and  assigns  by  wire  transfer  of  immediately
available funds to an account (the "Bank  Account")  designated by the Holder by
notice to the Issuer the principal sum of fourteen million dollars ($14,000,000)
plus accrued  interest,  if any, on November 5, 2006 in such coin or currency of
the United States of America as at the time of payment shall be legal tender for
the payment of public and private debts.

         The  principal  amount of this Note shall bear  interest at the rate of
7.5% per annum (the "Interest Rate") payable in cash or in kind, at the Issuer's
option  (other  than the  payment on  November  4, 2006 which will be payable in
cash),  semiannually  commencing on May 5, 1999 and on each May 5 and November 5
until such principal sum is paid in full. The Issuer may, at its option, on each
interest  payment  date,  in lieu of payment in cash,  pay interest on this Note
through the  issuance,  dated as of such  relevant  interest  payment  date,  of
additional Notes of like tenor, and with the same terms and restrictions as this
Note (the  "Secondary  Notes") in an  aggregate  principal  amount  equal to the
amount of  interest  that  would be  payable  with  respect to this Note if such
interest  were  paid in cash.  The  issuance  of such a  Secondary  Note will be
considered payment of interest on this Note in accordance with the terms hereof.
Each Secondary Note issued shall bear a legend in a form  substantially the same
as the legend which appears on the face hereof.

         This  Note is the  duly  authorized  note of the  Issuer  (the  "Note")
referred to in the Asset  Purchase  Agreement (the "Asset  Purchase  Agreement")
dated as of  September  16,  1998  among the Issuer  and the  Holder.  It is the
intention  of the Issuer and the Holder that the terms of this Note comply with,
among other  things,  applicable  covenants  and  restrictions  set forth in the
Indenture  (the  "Indenture")  dated as of March 14, 1996 between the Issuer and
Marine Midland Bank, as trustee.



<PAGE>



         This  Note  may be  transferred  or  assigned  in whole or in part in a
minimum  aggregate  amount of $1,000,000,  and the Issuer agrees to issue to the
Holder or any permitted transferee of the Holder from time to time a replacement
Note or Notes in the form hereof,  provided  that the transfer or  assignment is
made in compliance with applicable securities laws, and evidence of the transfer
or assignment reasonably  satisfactory to the Issuer, together with the original
Note,  are delivered to the Issuer.  References to "Note" shall include the Note
or Notes issued  following a permitted  transfer or  assignment  of this Note in
whole or in part to a permitted transferee or transferees and shall also include
all Secondary  Notes.  In addition,  after  delivery of an indemnity in form and
substance  satisfactory to the Issuer in its reasonable  discretion,  the Issuer
also  agrees to issue a  replacement  Note if this Note has been  lost,  stolen,
mutilated or destroyed.

         The  Issuer  agrees to record  this Note on the  Register  referred  to
below.  The  Note  recorded  on the  Register  ("Registered  Note")  may  not be
evidenced by a note other than a Registered  Note and, upon the  registration of
the Note, any promissory note (other than a Registered Note) evidencing the same
shall be null and void and shall be  returned  to the  Issuer.  The  Note,  once
recorded on the  Register,  may not be removed  from the  Register so long as it
remains  outstanding  and a Registered Note may not be exchanged for a note that
is not a Registered Note.

         The Issuer shall maintain,  or cause to be maintained,  a register (the
"Register") on which it enters the name of the Holder as the registered owner of
this Note. A Registered  Note may be assigned or sold in whole or in part,  in a
minimum aggregate amount of $1,000,000,  only by registration of such assignment
or sale on the Register (and each  Registered  Note shall expressly so provide).
Any  assignment or sale of all or part of such  Registered  Note may be affected
only by registration  of such assignment or sale on the Register,  together with
the surrender of the Registered Note, if any,  evidencing the same duly endorsed
by (or  accompanied by a written  instrument of assignment or sale duly executed
by) the  holder  of such  Registered  Note,  whereupon,  at the  request  of the
designated assignee(s) or transferee(s),  one or more new Registered Note in the
same aggregate principal amount shall be issued to the designated assignee(s) or
transferee(s). Prior to the registration of assignment or sale of any Registered
Note,  the Issuer shall treat the person in whose name such  Registered  Note is
registered  as the owner  thereof  for the  purpose of  receiving  all  payments
thereon and for all other purposes.

         In the event that the Holder  sells  participations  in any  Registered
Note,  each in a  minimum  aggregate  amount of  $1,000,000,  the  Holder  shall
maintain a  register  on which it enters  the name of all  participants  in such
Registered  Note  (the  "Participant   Register").  A  Registered  Note  may  be
participated in whole or in part only by registration of such  participation  on
the Participant  Register (and each Registered Note shall expressly so provide).
Any  participation  of  such  Registered  Note  may  be  effected  only  by  the
registration of such participation on the Participant  Register.  No participant
will  have  any  independent  rights  under  this  Note and any  rights  must be
exercised through a Holder.



<PAGE>


         Any foreign person who purchases or is assigned or  participates in any
portion  of any  Registered  Note  shall  provide  the  Issuer (in the case of a
purchase or  assignment) or the Holder (in the case of a  participation)  with a
completed Internal Revenue Service Form W-8 (Certificate of Foreign Status) or a
substantially  similar  form  for  such  purchaser,  participant  or  any  other
affiliate who is a holder of beneficial interests in any Registered Note.

         SECTION 1. Certain Terms Defined. For all purposes of this Note,
terms defined in this Note shall have the meaning set forth herein.
The following terms shall have the respective meanings specified
below. Terms defined in this Note include the plural as well as the
singular.

         "Accreted  Amount"  means  the  principal  amount  of this  Note or any
portion thereof plus accrued but unpaid interest thereon.

         "Average  Closing Price" of the Common Stock on the date of computation
means the arithmetic average of the daily  volume-weighted  average price of the
Common Stock, as reported on the American Stock Exchange,  Inc. (the "AMEX"), or
if the Common Stock is not then listed on the AMEX, as reported by the principal
securities  exchange or inter-dealer  quotation system on which the Common Stock
is then traded, for the 30-Trading Day period immediately  preceding the date of
computation.

         "Business Day" means any day except a Saturday,  Sunday or other day on
which commercial banks in the City of New York are authorized by law to close.

         "Closing  Price" of the Common  Stock on a given  Trading Day means the
daily volume-weighted average price of the Common Stock for such Trading Day, as
reported on the AMEX,  or if the Common Stock is not then listed on the AMEX, as
reported by the principal  securities exchange or inter-dealer  quotation system
on which the Common Stock is then traded.

         "Common Stock" means the common stock of the Issuer.

         "Conversion  Price" means three dollars  ($3.00) per share,  subject to
certain adjustments as described in Section 5.7.

         "Debt" of any Person means at any date,  without  duplication,  (i) all
obligations,  including accrued and unpaid interest and premium,  of such Person
for borrowed  money,  (ii) all  obligations  of such Person  evidenced by bonds,
debentures,  notes or other similar  instruments,  (iii) all obligations of such
Person in respect of letters of credit,  bankers'  acceptance  or other  similar
instruments  (or  reimbursement  obligations  with  respect  thereto),  (iv) all
obligations  of such Person to pay the  deferred  purchase  price of property or
services,  except Trade  Payables,  (v) all obligations of such Person as lessee
which  are  capitalized  in  accordance  with  generally   accepted   accounting
principles,  (vi)  all Debt of  others  secured  by a Lien on any  asset of such
Person,  whether or not such Debt is assumed by such Person,  and (vii) all Debt
of others Guaranteed by such Person.

         "Default"  means any condition or event which  constitutes  an Event of
Default  or which  with the  giving of  notice  or lapse of time or both  would,
unless cured or waived, become an Event of Default



<PAGE>


         "Existing Bank Debt" means any Debt incurred by the Issuer  pursuant to
the Healthcare  Receivables Purchase Agreement dated as of July 31, 1996 between
the Issuer and Daiwa Healthco. - 2 L.L.C.

         "Guarantee"  by  any  Person  means  any   obligation,   contingent  or
otherwise,  of such Person directly or indirectly  guaranteeing  any Debt of any
other  Person  and,  without  limiting  the  generality  of the  foregoing,  any
obligation,  direct or indirect,  contingent or otherwise, of such Person (i) to
purchase or pay (or advance or supply funds for the purchase or payment of) such
Debt  of  such  other  Person   (whether   arising  by  virtue  of   partnership
arrangements,  by agreement to keep-well,  to purchase assets, goods, securities
or services,  to take-or-pay,  or to maintain financial statement  conditions or
otherwise)  or (ii) entered into for the purpose of assuring in any other manner
the  obligee of such Debt for the  payment  thereof or to protect  such  obligee
against loss in respect  thereof (in whole or in part);  provided  that the term
Guarantee  shall not  include  endorsements  for  collection  or  deposit in the
ordinary  course  of  business.  The  term  "Guarantee"  used  as a  verb  has a
corresponding meaning.

         "Issuer  Conversion  Date"  means  the date on which the  Issuer  first
elects to convert the Note, in whole or in part, subject to Section 5.1(a).

         "Lien" means,  with respect to any asset, any mortgage,  lien,  pledge,
charge,  security  interest or encumbrance of any kind in respect of such asset.
For the  purposes of this Note,  the Issuer  shall be deemed to own subject to a
Lien any asset  which it has  acquired  or holds  subject to the  interest  of a
vendor or lessor under any  conditional  sale  agreement,  capitalized  lease or
other title retention agreement relating to such asset.

         "Market Disruption Event" means, with respect to the Common Stock (1) a
suspension, absence or material limitation of trading of the Common Stock on the
primary market for the Common Stock for more than two hours of trading or during
the one-half hour period  preceding  the close of trading in such market;  (2) a
suspension or material  limitation on the primary  market for trading in options
contracts  related to the Common Stock,  if available,  during the one-half hour
period  preceding  the close of trading  in the  applicable  market;  or (3) any
limitation pursuant to the rules of the American Stock Exchange, Section 3, Rule
117 (or any  applicable  rule or regulation  enacted or promulgated by the AMEX,
any other self-regulatory organization or the Securities and Exchange Commission
of  similar  scope) on  trading  during  significant  market  fluctuations.  For
purposes of determining  whether a Market  Disruption Event has occurred:  (1) a
limitation  on the hours or  number of days of  trading  will not  constitute  a
Market  Disruption  Event if it results from an announced  change in the regular
business  hours of the  relevant  exchange;  and (2) a decision  to  permanently
discontinue  trading in the  relevant  options  contract  will not  constitute a
Market Disruption Event.

         "Maturity Date" means November 5, 2006.

         "Offer Date" means a date that is not later than the fifth Business Day
after the last day of a Premium  Period as to which the Premium  Period Price is
greater than the Trigger Price.



<PAGE>


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

         "Premium" means the number represented by a fraction,  the numerator of
which is the Premium Period Price and the denominator of which is the Conversion
Price.

         "Premium Period" means any 30 consecutive Trading Days.

         "Premium  Period  Price" for any Premium  Period  means the  arithmetic
average of the 27 highest  Closing  Prices of the Common  Stock for Trading Days
during such Premium Period.

         "Redemption  Date"  means the date on which the  Issuer  exercises  its
option to redeem the Note subject to the terms of Section 4.

         "Redemption  Price"  means the  product of (i) the face value of all or
the portion of the Note being redeemed and (ii) the Premium.

         "Senior Debt" means (a) the Existing Bank Debt, and any  refinancing or
replacement thereof or additions thereto in an aggregate principal amount not to
exceed  $30,000,000 and (b) the Senior Notes, and any refinancing or replacement
thereof or  additions  thereto in an  aggregate  principal  amount not to exceed
$140,000,000.

         "Senior Notes" means the notes issued pursuant to the Indenture.

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

         "Trade  Payables" means accounts  payable or any other  indebtedness or
monetary  obligations to trade creditors created or assumed by the Issuer or any
Subsidiary of the Issuer in the ordinary  course of business in connection  with
the obtaining of materials or services.

         "Trading  Day"  means a day  which  is also a  Business  Day,  on which
trading is generally conducted (i) on the American Stock Exchange, Inc. and (ii)
on any  successor  exchange on which the Common Stock is listed,  and on which a
Market Disruption Event has not occurred.

         "Trigger Event" means the occurrence of any Change of Control event as
defined in the Indenture.

         "Trigger Price" means $3.60 per share.

         



<PAGE>

         SECTION 2.        Events of Default and Remedies.

         SECTION 2.1. Event of Default Defined; Acceleration of Maturity; Waiver
of Default.  In case one or more of the following  events  ("Events of Default")
(whatever the reason for such Event of Default and whether it shall be voluntary
or  involuntary  or be effected by operation of law or pursuant to any judgment,
decree  or  order  of  any  court  or  any  order,  rule  or  regulation  of any
administrative or governmental body) shall have occurred and be continuing:

                           (a)  default  in the  payment  when due of all or any
                part of the principal of or interest on the Note,  which failure
                to pay  continues for a period of 10 calendar days after the due
                date of such payment; or

                           (b) a court having jurisdiction in the premises shall
                enter a decree or order for  relief in  respect of the Issuer in
                an involuntary case under any applicable bankruptcy,  insolvency
                or other similar law now or hereafter in effect, or appointing a
                receiver, liquidator, assignee, custodian, trustee, sequestrator
                (or similar  official) of the Issuer or for any substantial part
                of the  property  of the Issuer or  ordering  the  winding up or
                liquidation  of the  affairs of the  Issuer,  and such decree or
                order  shall  remain  unstayed  and in effect for a period of 60
                days; or

                           (c) the Issuer shall  commence a voluntary case under
                any applicable  bankruptcy,  insolvency or other similar law now
                or hereafter in effect,  or consent to the entry of an order for
                relief in an involuntary  case under any such law, or consent to
                the appointment or taking possession by a receiver,  liquidator,
                assignee, custodian, trustee, sequestrator (or similar official)
                of the Issuer or for any substantial part of the property of the
                Issuer, or the Issuer shall make any general  assignment for the
                benefit of creditors; or

                           (d)   the Issuer  shall fail to comply with the
                covenant  contained in Section 3.2 of this Note; or

                           (e) a Senior  Debt  Default  (as  described  below in
                Section 6.2(b)) shall have occurred;

then, and in each and every such case,  the Holder,  by notice in writing to the
Issuer,  may declare  the  aggregate  Accreted  Amount of the Note to be due and
payable  immediately,  and upon  any such  declaration  the  same  shall  become
immediately due and payable.



<PAGE>


         SECTION  2.2.  Powers and  Remedies  Cumulative;  Delay or Omission Not
Waiver of Default.  No right or remedy herein  conferred upon or reserved to the
Holder is intended to be exclusive of any other right or remedy, and every right
and remedy shall, to the extent  permitted by law, be cumulative and in addition
to every other right and remedy given hereunder or now or hereafter  existing at
law or in equity or  otherwise.  The  assertion  or  employment  of any right or
remedy hereunder,  or otherwise,  shall not prevent the concurrent  assertion or
employment of any other appropriate right or remedy. No delay or omission of the
Holders to  exercise  any right or power  accruing  upon any Default or Event of
Default  occurring and  continuing  as aforesaid  shall impair any such right or
power or shall be  construed  to be a  waiver  of any such  Default  or Event of
Default or an  acquiescence  therein;  and every power and remedy  given by this
Note or by law may be  exercised  from  time to  time,  and as often as shall be
deemed expedient, by the Holder.

         SECTION  2.3.  Waiver of Past  Defaults.  The  Holders of a majority in
principal  amount  of the Note may waive any past  Default  or Event of  Default
hereunder and its consequences.  In the case of any such waiver,  the Issuer and
the Holder shall be restored to their  former  positions  and rights  hereunder,
respectively; but no such waiver shall extend to any subsequent or other Default
or impair any right consequent thereon. Upon any such waiver, such Default shall
cease to exist and be deemed to have been  cured and not to have  occurred,  and
any Default or Event of Default  arising  therefrom shall be deemed to have been
cured,  and not to have  occurred  for every  purpose  of the Note;  but no such
waiver shall extend to any  subsequent  or other  Default or Event of Default or
impair any right consequent thereon.

         SECTION  3.       Covenants.  The Issuer agrees that,  so long as any
amount  payable under this Note remains unpaid:

         SECTION  3.1.     Information.  The Issuer shall deliver to the Holder:

                           (a) within  five days after any officer of the Issuer
                obtains  actual  knowledge of any Default,  a certificate of the
                chief financial  officer or the chief accounting  officer of the
                Issuer  setting  forth the details  thereof and the action which
                the Issuer is taking or proposes to take with respect thereto;

                           (b) promptly after the Issuer has actual knowledge of
                the occurrence of a Trigger Event, a certificate of an executive
                officer  of the  Issuer,  stating  that such  Trigger  Event has
                occurred; and

                           (c) promptly upon the filing  thereof,  the quarterly
                and annual financial reports that the Issuer is required to file
                with the Securities and Exchange  Commission pursuant to Section
                13 or Section 15(d) of the  Securities  Exchange Act of 1934 or,
                in the event the Issuer is not  required  to file such  reports,
                reports  containing  substantially the same information as would
                be  required  in such  reports  (it  being  understood  that the
                foregoing shall not be construed to require  presentation in the
                manner  required by such Act and the  regulations  thereunder so
                long as the data required thereunder is so provided).

         SECTION 3.2.  Restriction  on Senior Debt. For so long as any principal
or interest shall remain outstanding under this Note, the aggregate  outstanding
amount of Senior Debt of the Issuer shall not exceed $170 million.

         



<PAGE>

         SECTION  4.       Redemption.

         SECTION 4.1. Issuer's Redemption;  Holder's Redemption;  Maturity.  (a)
Subject to the provisions of this Section 4, at the Issuer's option the Note may
be redeemed,  in whole or in part, at the Redemption  Price,  upon notice by the
Issuer on any Offer Date (a "Redemption  Offer Date"),  provided that the Holder
may, within 10 Business Days after any Redemption Offer Date, exercise its right
to convert the Note or the applicable  portion thereof under Section 5.1(b).  If
the Holder elects to exercise such right to convert upon the Issuer's  notice of
redemption, the Issuer may (in its sole discretion) within two (2) Business Days
after the  Holder's  election to convert,  (i) redeem that portion of the amount
originally  sought to be  redeemed  that  exceeds  the  amount the Holder has so
elected to convert, or (ii) decline to redeem any portion of the Note, whereupon
the redemption notice shall be deemed withdrawn and shall be of no further force
or effect  (provided  that such  failure to redeem shall not affect the Holder's
rights  under  Section 5 of this  Note).  If the Note is  redeemed  in part,  or
converted  in part  pursuant  to Section 5, the Issuer  shall have the option to
redeem  the  remainder  (the  "Remainder")  of the  Note in  whole or in part (a
"Remainder Redemption"), subject to the provisions of the first sentence of this
subsection.

           (b) The Issuer shall repay the Note or Remainder, as the case may be,
in whole at the Maturity  Date by paying to the Holder on the Maturity Date cash
in an amount  equal to the Accreted  Amount on the Maturity  Date of the Note or
the Remainder, as the case may be.

           (c) Notwithstanding Section 4.1(a), if, within 45 days after an Offer
Date,  the Issuer fails to redeem or convert the Note in whole or in part (other
than as a result of the  Holder's  election  to convert  the Note) then no Offer
Date will occur,  and the Issuer shall have no right to redeem the Note in whole
or in part pursuant to Section  4.1(a),  until the date that is six months after
such Offer Date.

         SECTION 4.2. Notice of Redemption; Subsequent Rights of Holders. (a) In
the event the Issuer  shall redeem the Note or any portion  thereof  pursuant to
Section  4.1(a),  the notice of such  redemption  shall be given by first  class
mail, postage prepaid,  mailed on the Redemption Offer Date to the Holder of the
Note at such  Holder's  address as the same appears on the  Register.  Each such
notice  shall  state:  (i) the  proposed  Redemption  Date  (which  shall be the
eleventh  Business  Day after the  Redemption  Offer Date);  (ii) the  aggregate
principal  of Note to be  redeemed  and,  if only a portion of the Note is to be
redeemed, the aggregate principal of Note to be redeemed from such Holder; (iii)
the Redemption  Price and the Average  Closing  Price;  (iv) the place or places
where Note is to be  surrendered  for payment of the redemption  price;  and (v)
that interest on the portion of the Note to be redeemed  ceased to accrue on the
Redemption Date.



<PAGE>


           (b)  Notice  having  been  mailed  as  aforesaid,  from and after the
Redemption  Date (unless  default shall be made by the Issuer in providing money
for the payment of the  redemption  price of the Note or portion  thereof called
for  redemption),  interest  on the  Note  or  portion  thereof  so  called  for
redemption  shall  cease to  accrue,  and all  rights of the  Holder of the Note
thereunder  (except the right to receive from the Issuer the  redemption  price)
shall cease.  Upon surrender in accordance  with said notice of the  certificate
for any Note so redeemed  (properly  endorsed or assigned for  transfer,  if the
Board of  Directors  of the  Issuer  shall so require  and the  notice  shall so
state),  such Note (or a portion thereof,  as the case may be) shall be redeemed
by the Issuer at the aforesaid Redemption Price. In case the Note is redeemed in
part, a new Note shall be issued  representing  the unredeemed  portions of such
Note without cost to the Holder thereof.

         SECTION  5.       Conversion.

         SECTION 5.1.  Issuer's  Conversion  Right;  Holder's  Conversion Right;
Automatic  Conversion.  (a)  Subject  to the  provisions  of this  Section 5, at
Issuer's option,  the Note may be converted at the Conversion Price, in whole or
in part,  upon  notice by the  Issuer on any  Offer  Date into  shares of Common
Stock. If the Note is converted in part, or redeemed in part pursuant to Section
4, the Issuer shall have the option to convert the  Remainder of the Note at any
future  Offer  Date  (the  "Remainder  Conversion  Date"),  in whole or in part,
subject to the provisions of this Section 5.

           (b) The  Holder  shall  have the right at any time to  convert at the
Conversion Price (i) up to seven million dollars ($7,000,000) of the outstanding
principal  amount of the Note plus the principal  amount of all Secondary  Notes
issued with respect to $7,000,000 of the original principal amount of this Note,
computed from the date hereof through the Holder Conversion Date, into shares of
fully paid and  non-assessable  shares of Common  Stock at any time on or before
November 5, 2002, or (ii) any or all of the outstanding balance of the Note into
shares of fully paid and non-assessable shares of Common Stock at any time on or
after November 6, 2002 (in each case, the "Holder Conversion Date").

           (c) Where the Note is converted in part, the Conversion Price will be
applied to the  principal  amount to be  converted  to  determine  the number of
shares of Common Stock to be delivered. On conversion of this Note, the interest
attributable  to the period from the last  interest  payment date to the date of
conversion  shall be deemed to be paid in full to the Holder thereof through the
delivery of Common Stock in accordance with the foregoing provisions in exchange
for this Note.  No claim for accrued  interest  will survive  conversion of this
Note into Common Stock.

           (d) Subject to the provisions of Section 6, the outstanding principal
amount of this Note shall be converted automatically,  in whole and not in part,
into fully paid and non-assessable shares of Common Stock upon the occurrence of
a Trigger Event; provided,  that if (i) the cash component being offered for the
Common Stock on the date of such Trigger Event is less than the Conversion Price
and (ii) the Closing  Price on the date of such  Trigger  Event is less than the
Trigger  Price,  Holder may, at its option by written  notice to Issuer within 5
days of the date of such Trigger Event,  either (i) convert the Accreted  Amount
of the Note or  Remainder,  as the case may be, at the  Conversion  Price,  into
fully  paid and  non-assessable  shares of Common  Stock or,  (ii)  elect to not
convert  the  Note.  Notwithstanding  any  provision  of  this  Note,  upon  the
occurrence of a Trigger Event,  any such  conversion  shall take place under the
terms specified by such Trigger Event,  and any and all Common Stock issued as a
result of such conversion shall be subject to the same terms as all other Common
Stock issued upon the occurrence of such Trigger Event. Any conversion  pursuant
to this paragraph shall occur automatically,  without further action on the part
of the Holder or the Issuer.



<PAGE>


           (e) Notwithstanding Section 5.1(a), if, within 45 days after an Offer
Date,  the Issuer fails to redeem or convert the Note in whole or in part (other
than as a result of the  Holder's  election to convert the Note),  then no Offer
Date will occur, and the Issuer shall have no right to convert the Note in whole
or in part pursuant to Section  5.1(a),  until the date that is six months after
such Offer Date.

         SECTION  5.2.  Exercise  Procedure.  (a) In the event the Issuer  shall
exercise  its right to convert the Note in whole or in part  pursuant to Section
5.1(a),  notice of such  exercise  shall be given by first class  mail,  postage
prepaid,  mailed on the Issuer Conversion Date or the Remainder  Conversion Date
(as the case may be) to the Holder of the Note at such  Holder's  address as the
same appears on the Register.  In the event the Holder shall  exercise its right
to convert the Note in whole or in part  pursuant to Section  5.1(b),  notice of
such exercise shall be given by first class mail, postage prepaid, mailed on the
Holder  Conversion  Date to the Issuer at the Issuer's  address on the signature
page of this Note or at such other  address as the Issuer shall have  previously
designated in writing to the Holder.

          (b) Promptly upon (i) receipt by the Holder of written notice from the
Issuer of its  exercise  of its right to convert  this Note in whole or in part,
(ii) mailing of notice by the Holder of the exercise of its right to convert the
Note in whole or in part, or (iii) automatic  conversion of the Note pursuant to
Sections 5.1(d) or 5.1(e), the Holder shall surrender this Note at the office of
the Issuer.

           (c) As promptly as practicable,  and in any event within ten Business
Days, after the surrender by the Holder as aforesaid, the Issuer shall issue and
shall deliver to such Holder,  a certificate or  certificates  for the number of
shares of Common Stock  issuable upon the  conversion of this Note in accordance
with the  provisions of this Section 5. In case the Note is converted in part, a
new Note shall be issued  representing  the  unconverted  portions  of such Note
without cost to the Holder thereof.

           (d) Each conversion  shall be deemed to have been effected (i) in the
case  of any  conversion  pursuant  to  Section  5.1(a)  or (b),  on the  Issuer
Conversion Date, the Remainder  Conversion Date, or the Holder  Conversion Date,
as the  case may be;  (ii) in the case of any  conversion  pursuant  to  Section
5.1(d),  on the date of the Trigger  Event,  (iii) in the case of any conversion
pursuant to Section  5.1(e),  on the Maturity Date, and the Person in whose name
or names any  certificate  or  certificates  for shares of Common Stock shall be
issuable  upon such  conversion  shall be deemed to have  become  the  holder of
record of the shares of Common  Stock  represented  thereby at such time on such
date and such  conversion  shall be into the  number of  shares of Common  Stock
determined by dividing the Accreted  Amount of the Note being  converted at such
time by the Conversion Price (subject to Section 5.6 as it relates to fractional
shares).  All shares of Common Stock delivered upon conversion of this Note will
upon delivery be duly and validly issued and fully paid and non-assessable, free
of all Liens and  charges  and not subject to any  preemptive  rights.  Upon the
conversion of this Note, the principal  amount or portion  thereof,  as the case
may be, so converted  shall no longer be deemed to be outstanding and all rights
of the  Holder  with  respect to this Note or portion  thereof  surrendered  for
conversion  shall  immediately  terminate except the right to receive the Common
Stock and other amounts, if any, payable pursuant to this Section 5.



<PAGE>


         SECTION 5.3. Effect of Election. (a) Upon the delivery to the Holder by
the Issuer,  or to the Issuer by the Holder,  of a notice of election to convert
the Note in whole,  the right of the Issuer to redeem this Note shall terminate,
regardless of whether a notice of redemption has been mailed as aforesaid.

           (b) The Accreted Amount of this Note shall cease to accrue in respect
of the  converted  portion  of this  Note on the date such  conversion  shall be
deemed to have been  effected  pursuant to Section  5.2(d).  From and after such
date,  the Holder of this Note shall  participate  equally and ratably  with the
holders of shares of Common Stock in all  dividends  paid on the Common Stock as
if this Note had been converted to shares of Common Stock at such time.

         SECTION 5.4. Issuance of Shares. (a) The Issuer covenants that it shall
at all times  reserve and keep  available,  free from  preemptive  rights,  such
number  of its  authorized  but  unissued  shares  of  Common  Stock as shall be
required for the purpose of effecting the conversion of this Note.

           (b) Prior to the delivery of any securities which the Issuer shall be
obligated to deliver upon  conversion of this Note, the Issuer shall comply with
respect to the issuance of such securities with all applicable federal and state
laws and regulations which require action to be taken by the Issuer.

         SECTION  5.5.  Taxes on  Conversion.  The  Issuer  will pay any and all
documentary,  stamp or similar issue or transfer taxes payable in respect of the
issue or delivery of shares of Common Stock on  conversion of this Note pursuant
hereto;  provided that the Issuer shall not be required to pay any tax which may
be payable in respect of any transfer  involving the issue or delivery of shares
of Common  Stock in a name  other  than that of the  Holder and no such issue or
delivery  shall be made  unless  and until the Person  requesting  such issue or
delivery  has paid to the Issuer the amount of any such tax or has  established,
to the satisfaction of the Issuer, that such tax has been paid.

         SECTION 5.6. No Fractional Shares. In connection with the conversion of
this Note or a portion  hereof,  no fractions of shares of Common Stock shall be
issued, but in lieu thereof the Issuer shall pay a cash adjustment in respect of
such fractional interest in an amount equal to such fractional interest.

         SECTION  5.7.     Anti-Dilution.  (a) The terms of  conversion  of the
Note shall be subject to the following adjustments:

                   (i) If the Issuer shall declare and pay to the holders of the
         Common  Stock a  dividend  or other  distribution  payable in shares of
         Common  Stock,  the  Holder  of the  Note  thereafter  surrendered  for
         conversion  shall be entitled to receive the number of shares of Common
         Stock  which such Holder  would have owned or been  entitled to receive
         after  the   declaration   and  payment  of  such   dividend  or  other
         distribution if such Note had been converted  immediately  prior to the
         record date for the  determination of stockholders  entitled to receive
         such dividend or other distribution.



<PAGE>


                  (ii) If the Issuer shall subdivide the  outstanding  shares of
         Common  Stock  into a greater  number of  shares  of Common  Stock,  or
         combine the outstanding  shares of Common Stock into a lesser number of
         shares, or issue by  reclassification of its shares of Common Stock any
         shares of the Issuer,  the Conversion Price in effect immediately prior
         thereto  shall be  adjusted  so that the Holder of the Note  thereafter
         surrendered  for conversion  shall be entitled to receive the number of
         shares of Common  Stock  which  such  Holder  would  have owned or been
         entitled to receive  after the  happening of any and each of the events
         described  above if such Note had been converted  immediately  prior to
         the   happening  of  each  such  event  on  the  day  upon  which  such
         subdivision,  combination  or  reclassification,  as the  case  may be,
         becomes effective.

                 (iii) In case the Issuer shall effect a  reorganization,  shall
         merge with or  consolidate  into  another  corporation,  or shall sell,
         transfer  or  otherwise  dispose  of  all or  substantially  all of its
         property,  assets  or  business  and,  pursuant  to the  terms  of such
         reorganization,  merger, consolidation or disposition of assets, shares
         of stock or other  securities,  property or assets of the Issuer, or of
         its successor or transferee or an affiliate of any thereof, or cash are
         to be received by or distributed  to the holders of Common Stock,  then
         the Holder of the Note shall be given a written  notice from the Issuer
         informing  such  Holder  of the terms of such  reorganization,  merger,
         consolidation  or  disposition of assets and of the record date thereof
         for any distribution  pursuant thereto, at least ten days in advance of
         such record date,  and, if such record date shall  precede the Maturity
         Date,  the  Holder  of the Note  shall  have the  right  thereafter  to
         receive,  upon  conversion of the Note the number of shares of stock or
         other securities, property or assets of the Issuer, or of its successor
         or transferee or any affiliate thereof, or cash receivable upon or as a
         result of such reorganization,  merger, consolidation or disposition of
         assets  that  would  have been  received  by a holder of the  number of
         shares of Common  Stock equal to the number of shares the Holder of the
         Note would have  received had such Holder  converted  the Note prior to
         such event at the Conversion Price immediately prior to such event. The
         provisions  of  this  subparagraph   (iii)  shall  similarly  apply  to
         successive reorganizations,  mergers, consolidations or dispositions of
         assets.

                  (iv)  Whenever  the  terms of  conversion  shall  be  adjusted
         pursuant to this Section 5.7, the Issuer shall  forthwith  obtain,  and
         cause to be delivered to the Holder of the Note, a  certificate  signed
         by the principal financial or accounting officer of the Issuer, setting
         forth in reasonable  detail the event  requiring the adjustment and the
         method by which such adjustments were calculated and specifying the new
         Conversion Price. In the cases referred to in subparagraph  (iii), such
         a certificate  shall be issued describing the amount and kind of stock,
         securities,  property or assets or cash which shall be receivable  upon
         conversion  of the Note after giving  effect to the  provisions of such
         subparagraph.

                  (v) No  adjustment to the  Conversion  Price shall be required
         unless such  adjustment  would  require a change of at least 1% in such
         rate; provided,  however,  that any adjustments which by reason of this
         paragraph (v) are not required to be made shall be carried  forward and
         taken into account in any subsequent adjustment.



<PAGE>


         SECTION 6.        Subordination.

         SECTION 6.1.  Subordination  to Senior Debt.  The Issuer and the Holder
agree for the benefit of the Senior Debt holders that all indebtedness evidenced
by this Note, including principal,  premium, if any, and interest, and all other
amounts  payable to the Holder  hereunder  (including,  for all purposes of this
Note any  payment in respect of  redemption  or  purchase  or other  acquisition
hereof) shall, in the manner hereinafter set forth, be subordinate and junior in
right of payment to all Senior Debt of the Issuer. All indebtedness evidenced by
this Note  shall rank pari  passu to all Debt of the  Issuer  other than  Senior
Debt.  Without  limiting the  generality  of the  foregoing,  the Issuer and the
Holder  agree  that no  payment  shall be made in respect of the Note that would
contravene the terms of the Indenture.

         SECTION  6.2.  Issuer  Not  to  Make  Payments   hereunder  in  Certain
Circumstances.  Without  limiting the generality of the foregoing:  (a) Upon the
maturity of all or any part of the Senior Debt by lapse of time, acceleration or
otherwise,  such Senior Debt shall first be paid in full,  or such payment shall
be duly  provided  for in cash or in a manner  satisfactory  to the Senior  Debt
holders of such superior  indebtedness,  before any payment by the Issuer or any
Subsidiary  is made on  account  of the  principal  of or  premium,  if any,  or
interest on the Note or to redeem the Note.

           (b) In the  event and  during  the  continuation  of any  default  in
respect of any Senior Debt, including,  without limitation,  any default arising
from either a default in the payment of  principal or interest in respect of any
Senior  Debt (each  such  default  being  referred  to herein as a "Senior  Debt
Default"),  no  payment  shall be made by the  Issuer on or with  respect to the
principal  of, or,  premium,  if any, or interest  on, the Note or to redeem the
Note unless and until such Senior Debt  Default  shall have been  remedied,  nor
shall any such  payment  be made if after  giving  effect,  as if paid,  to such
payment,  any Senior Debt Default would exist.  In any such event,  no Holder of
the Note shall  demand,  accept or receive,  any direct or indirect  payment (in
cash or property or by setoff,  exercise of contractual  or statutory  rights or
otherwise) of or on account of the Note,  notwithstanding  the terms of the Note
or of any  agreement or instrument  which governs the Note,  and no such payment
shall be due.

           (c) Prior to  November  5,  2006,  if a default  or event of  default
exists  under the Senior Debt,  the Issuer shall not make,  and no Holder of the
Note shall demand, accept or receive (in cash or property or by setoff, exercise
of contractual or statutory rights or otherwise), or shall attempt to collect or
commence any legal  proceedings  to collect,  any direct or indirect  payment on
account  of the Note  prior to the date such  payment  becomes  due and  payable
pursuant to the terms thereof or, if later,  prior to the first date such amount
is not  prohibited  from being paid pursuant to this Section 6.  Notwithstanding
the foregoing,  the Holder shall be entitled to accept and retain any payment by
the Issuer  pursuant  to Section 4 hereof,  or any Common  Stock  issuable  upon
conversion of this Note, in whole and in part, pursuant to Section 5 hereof.

           (d) Unless and until the earlier of (i) all principal of, premium, if
any, and interest on and all other  obligations of the Issuer under,  any Senior
Debt, shall have been paid in full or (ii) November 5, 2006, then:



<PAGE>


                   (i) the  Issuer  shall  not  make,  and no Holder of the Note
         shall  demand,  accept or  receive,  or shall  attempt  to  collect  or
         commence  any legal  proceedings  to  collect,  any direct or  indirect
         payment (in cash or property or by setoff,  exercise of  contractual or
         statutory  rights or otherwise) of or on account of any amount  payable
         on or with respect to the Note; and

                  (ii)   no such payment shall be due;

unless such payment is not  prohibited  by, and is made in  accordance  with the
terms of,  any  covenant  or  restriction  set forth in the  Indenture,  and the
failure  to make any  payment  on or with  respect  to the Note by reason of any
covenant or  restriction  in the Indenture  shall not constitute a breach of, or
default under, any provision applicable to the Note.

           (e) Unless and until the earlier of (i) all principal of, premium, if
any, and interest on, and all other  obligations of the Issuer under, the Senior
Debt shall  have been paid in full or (ii)  November  5, 2006,  no Holder of the
Note will commence or maintain any action,  suit or any other legal or equitable
proceeding against the Issuer, or join with any creditor in any such proceeding,
under any insolvency, bankruptcy, receivership,  liquidation,  reorganization or
other similar law, unless the holders of Senior Debt shall also join in bringing
such  proceeding,  provided that this Section 6.2(e) shall not prohibit a Holder
of the Note from filing a proof of claim or otherwise  participating in any such
proceeding not commenced by it.

         SECTION 6.3. Note  Subordinated  to Prior Payment of all Senior Debt on
Dissolution,  Liquidation  or  Reorganization  of  Issuer.  In the  event of any
insolvency  or  bankruptcy  proceedings,  and  any  receivership,   liquidation,
reorganization  or other similar  proceedings,  relative to the Issuer or to its
creditors, in their capacity as creditors of the Issuer, or to substantially all
of its property,  and in the event of any proceedings for voluntary liquidation,
dissolution  or  other  winding  up of the  Issuer,  whether  or  not  involving
insolvency or bankruptcy,

           (a) the holders of all Senior Debt shall first be entitled to receive
payment in full of the  principal  thereof,  premium,  if any,  interest and all
other amounts payable thereon (accruing before and after the commencement of the
proceedings, whether or not allowed or allowable as a claim in such proceedings)
before the Holder of the Note is  entitled  to receive any payment on account of
the principal of, premium, if any, or interest on the Note; and

           (b) the Note shall  forthwith  (notwithstanding  the terms of Section
6.2) become due and payable  and any  payment or  distribution  of assets of the
Issuer of any kind or  character,  whether in cash,  property or  securities  to
which the Holder of the Note would be entitled,  but for the  provisions of this
Section 6, shall be paid or distributed by the  liquidating  trustee or agent or
other person making such payment or distribution,  whether the debtor, a trustee
in  bankruptcy,  a receiver or  liquidating  trustee or other  trustee or agent,
directly to any  representative  on behalf of the holders of Senior Debt, to the
extent  necessary to make  payment in full of all  principal,  premium,  if any,
interest  and all other  amounts  payable on all Senior Debt  remaining  unpaid,
after giving effect to any concurrent  payment or distribution to the holders of
the Senior Debt.


<PAGE>



         SECTION 6.4. Rights of Holders of Senior Debt; Subrogation.  (a) Should
any  payment or  distribution  or  security  or the  proceeds  of any thereof be
collected or received by the Holder of the Note in respect of the Note, and such
collection  or receipt is prohibited  hereunder  prior to the payment in full of
the Senior Debt,  such Holder will forthwith  deliver the same to the holders of
the Senior Debt for the equal and  ratable  benefit of the holders of the Senior
Debt  in  precisely  the  form  received  (except  for  the  endorsement  or the
assignment of or by such Holder where  necessary) for  application to payment of
all  Senior  Debt in full,  after  giving  effect to any  concurrent  payment or
distribution  to the holders of Senior Debt and,  until so  delivered,  the same
shall be held in trust by such  Holder as the  property  of the  holders  of the
Senior Debt.

           (b) No Holder of the Note  shall be  subrogated  to the rights of the
holders of the Senior Debt to receive payments or distributions of assets of the
Issuer  until all amounts  payable with respect to the Senior Debt shall be paid
in full; and, for the purposes of such subrogation, no payments or distributions
to the  Holder  of the Note of any cash,  property  or  securities  to which any
Holder of the Note would be  entitled  except  for these  provisions  shall,  as
between the Issuer, its creditors other than the holders of the Senior Debt, and
such holders of Notes,  be deemed to be a payment by the Issuer to or on account
of the Senior Debt. The provisions of this Agreement are and are intended solely
for the purpose of defining the relative  rights of the holders of Note,  on the
one hand, and the holders of the Senior Debt, on the other hand.

           (c) Subject to the payment in full of all Senior Debt, the holders of
the Note  shall be  subrogated  (equally  and  ratably  with the  holders of all
subordinated  indebtedness of the Issuer which, by its terms, is not superior in
right of payment to the Note, and ranks on a parity with the Note) to the rights
of the holders of Senior  Debt to receive  payments  or  distributions  of cash,
property or  securities  of the Issuer  applicable  to the Senior Debt until all
amounts  owing  on the  Note  shall  be  paid  in  full.  For  purposes  of such
subrogation,  no  payments or  distributions  to the Holder of the Note of cash,
property,  securities  or other  assets  by  virtue  of the  subrogation  herein
provided which  otherwise would have been made to the holders of the Senior Debt
shall,  as between the Issuer,  its  creditors  other than the holders of Senior
Debt and the  Holder of the Note,  be deemed to be a payment to or on account of
the Note.  The Holder of the Note agrees that, in the event that all or any part
of any payment made on account of the Senior Debt is recovered  from the holders
of Senior Debt as a preference, fraudulent transfer or similar payment under any
bankruptcy,  insolvency or similar law, any payment or distribution  received by
the  Holder of the Note on account of the Note at any time after the date of the
payment so recovered,  whether pursuant to the right of subrogation provided for
in this Section  6.4(c) or  otherwise,  shall be deemed to have been received by
such  Holder of the Note in trust as the  property  of the holders of the Senior
Debt and such Holder shall forthwith  deliver the same for the equal and ratable
benefit  to the  holders of the Senior  Debt for  application  to payment of all
Senior Debt in full.

         SECTION 6.5.  Renewals,  Extensions  and Increases of Senior Debt.  The
Holder of the Note by its acceptance  thereof  thereby waives any and all notice
of renewal, extension, accrual or increase in the amount of Senior Debt, present
or future,  and  agrees and  consents  that  without  notice to or assent by any
Holder of the Note:



<PAGE>


           (a)  except as limited by Section  3.2  hereof,  the Issuer  shall be
permitted to incur Senior Debt, including,  without limitation,  Senior Debt not
in existence on the date hereof;

           (b) except as  limited by Section  3.2  hereof,  the  obligation  and
liabilities  of the Issuer or any other  party or parties for or upon the Senior
Debt (or any  promissory  note,  security  document  or guaranty  evidencing  or
securing  the same) may,  from time to time,  in whole or in part,  be  renewed,
extended, increased, modified, amended, accelerated, compromised,  supplemented,
terminated, sold, exchanged, waived or released;

           (c) any representative  acting on behalf of the holders of any Senior
Debt and any holder of the Senior Debt may exercise or refrain  from  exercising
any right,  remedy or power  granted  by or in  connection  with any  agreements
relating to the Senior Debt; and

           (d) any  balance or  balances  of funds with any holder of the Senior
Debt at any time standing to the credit of the Issuer may, from time to time, in
whole or in part, be surrendered or released;

all as any representative or  representatives  acting on behalf of any holder of
the Senior  Debt and any holder of the Senior  Debt may deem  advisable  and all
without   impairing,   abridging,   diminishing,   releasing  or  affecting  the
subordination of the Note to the Senior Debt provided for herein.

         SECTION 6.6. Obligation of Issuer  Unconditional.  Nothing contained in
this  Section 6 or in the Note is  intended to or shall  impair,  as between the
Issuer,  its creditors other than the holders of the Senior Debt, and the Holder
of the Note, the obligation of the Issuer,  which is absolute and unconditional,
to pay to the Holder of the Note the principal of, premium, if any, and interest
on the Note,  as and when the same  shall  become  due and  payable  (except  as
provided in this Section 6), by lapse of time,  acceleration  or  otherwise,  in
accordance  with their  terms,  or is intended to or shall  affect the  relative
rights of the Holder of the Note and other  creditors  of the Issuer  other than
the holders of the Senior Debt, nor shall anything herein or therein prevent the
Holder of the Note (i) from  taking  all  appropriate  actions to  preserve  its
rights  under the Note not  inconsistent  with the rights of the  holders of the
Senior Debt under this Section 6, or (ii) from exercising all remedies otherwise
permitted by applicable law upon default under the Note,  subject to the rights,
if any,  under this  Section 6 of the  holders of the Senior  Debt in respect of
cash,  property or  securities of the Issuer  otherwise  payable or delivered to
such holders upon the exercise of any such remedy.

         SECTION  6.7.  Miscellaneous.  (a)  The  Holder  of  the  Note  by  its
acceptance  thereof  thereby  acknowledges  and agrees  that the  holders of the
Senior Debt have relied  upon and will  continue to rely upon the  subordination
provided for herein in entering into the agreements  relating to Senior Debt and
in extending credit to the Issuer pursuant thereto.



<PAGE>


           (b) No present or future holder of Senior Debt shall be prejudiced in
his right to enforce the  subordination  contained herein in accordance with the
terms  hereof  by any act or  failure  to act on the part of the  Issuer  or the
Holder of the Note. The  subordination  provisions  contained herein are for the
benefit  of the  holders of the  Senior  Debt from time to time and,  so long as
Senior Debt is outstanding under any agreement,  may not be rescinded,  canceled
or modified in any way without the prior written  consent thereto of all holders
of Senior Debt.

           (c) The  subordination  provisions  hereof  shall be binding upon any
Holder of the Note and upon the heirs,  legal  representatives,  successors  and
assigns of the  Holder of the Note;  and,  to the extent  that the Holder of the
Note is either a partnership  or a  corporation,  all  references  herein to the
Holder of the Note  shall be deemed to  include  any  successor  or  successors,
whether immediate or remote, to such partnership or corporation.

      SECTION 70   Modification  of Note.  The Note may be modified
with the  written  consent of the Holder. The Holder may waive compliance by
the Issuer of any provision of the Note.

      SECTION 80   Miscellaneous.  THIS NOTE, INCLUDING,  WITHOUT  LIMITATION,
THE TERMS OF SUBORDINATION  SET FORTH IN SECTION 6 HEREOF,  SHALL BE GOVERNED BY
AND BE  CONSTRUED IN  ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT
REGARD TO THE CONFLICTS OF LAW RULES OF SUCH STATE.  The Holder by acceptance of
this  Note  agrees  to be bound by the  provisions  of this  Note.  The  Section
headings herein are for convenience  only and shall not affect the  construction
hereof.



<PAGE>


         IN WITNESS  WHEREOF,  the  Issuer  has caused  this  instrument  to be
duly  executed  as of this ____ day of November, 1998.


                                         UNILAB CORPORATION



                                         By:_______________________
                                         Name:
                                         Title:
                                         18448 Oxnard Street
                                         Tarzana, CA 91356





<TABLE>
 
                               TABLE OF CONTENTS
<CAPTION>
                                                                                             PAGE

                                    ARTICLE 1
                              REGISTRATION RIGHTS
<S>           <C> 
SECTION 1.01.  Definitions............................................1
SECTION 1.02.  Demand Registration....................................2
SECTION 1.03.  Company Registration...................................4
SECTION 1.04.  Obligations of the Company.............................5
SECTION 1.05.  Furnishing of Information..............................7
SECTION 1.06.  Expenses of Registration...............................7
SECTION 1.07.  Indemnification........................................7
SECTION 1.08.  Reports under 1934 Act................................11
SECTION 1.09.  Lock-up Agreements....................................12
SECTION 1.10.  Effect of Transfer of Registrable Securities..........12
SECTION 1.11.  Limitations on Subsequent Registration Rights.........12
SECTION 1.12.  Termination...........................................12
SECTION 1.13.  Acknowledgements of Investor..........................13

                                    ARTICLE 2
                                 MISCELLANEOUS


SECTION 2.01.  Legend................................................14
SECTION 2.02.  Notices...............................................14
SECTION 2.03.  Entire Agreement......................................15
SECTION 2.04.  Amendments, Waivers and Consents......................15
SECTION 2.05.  Binding Effect; Assignment............................16
SECTION 2.06.  General...............................................16
SECTION 2.07.  Severability..........................................16
SECTION 2.08.  Counterparts..........................................16
SECTION 2.09.  Specific Performance..................................16

</TABLE>


<PAGE>




                               UNILAB CORPORATION
                          REGISTRATION RIGHTS AGREEMENT

         This REGISTRATION RIGHTS AGREEMENT ("Agreement") is made as of November
5, 1998 by and among UNILAB CORPORATION,  a Delaware corporation ("Company") and
MERIS LABORATORIES, INC., ("Investor").

         WHEREAS,  the Company and Investor have entered into an Asset  Purchase
Agreement dated as of September 16, 1998 ("Asset Purchase  Agreement")  pursuant
to which the Company is to issue to Investor a  Convertible  Note of the Company
(the  "Note")  that is  convertible  into a number of  shares  of  common  stock
("Common Stock") as set forth in the Note;

         WHEREAS,  it is a condition  to the  consummation  of the  transactions
contemplated by the Asset Purchase Agreement that the Company and Investor enter
into this Agreement;

         NOW,  THEREFORE,  in  consideration  of the foregoing  recitals and the
mutual covenants and agreements  herein  contained,  the parties hereto agree as
follows:



                                    ARTICLE 1

                               REGISTRATION RIGHTS

         SECTION 1.1.  Definitions.  For the purposes of this Agreement:

          (a) The terms "register," and "registered," and  "registration"  refer
to a registration  effected by preparing and filing with the U.S. Securities and
Exchange  Commission  ("SEC") a  registration  statement or similar  document in
compliance  with the Securities  Act of 1933, as amended  ("1933 Act"),  and the
automatic   effectiveness   or  the  declaration  or  ordering  by  the  SEC  of
effectiveness of such registration statement or document;



<PAGE>





                                                3

          (b) The term  "Registrable  Securities"  mean the Note and the  Common
Stock issuable or issued upon conversion of the Note and any Common Stock issued
as (or issuable upon the conversion or exercise of any warrant, option, right or
other security which is issued as) a dividend or other distribution with respect
to, or in exchange for or in replacement of, the Common Stock issuable or issued
upon conversion of the Note; provided,  however, that the Note and any shares of
Common Stock sold to the general public pursuant to a registered public offering
or pursuant to an exemption from the  registration  requirements of the 1933 Act
shall cease to be Registrable  Securities  from and after the time of such sale;
provided  further that the Note, if eligible for resale  pursuant to Rule 144(k)
and any shares of Common Stock,  if eligible for resale  pursuant to Rule 144(k)
shall cease to be Registrable Securities;
          (c) The number of shares of  Registrable  Securities at any time shall
be the number of shares of Common Stock issuable pursuant to then exercisable or
convertible securities which upon issuance would be Registrable Securities;

          (d) The term  "Holder"  means any  person now or  hereafter  owning or
having the right to acquire Registrable Securities; and

          (e) The  terms  "Form  S-3,"  "Form  S-4" and  "Form  S-8"  mean  such
respective  forms  under  the 1933 Act as in  effect  on the date  hereof or any
successor  registration forms to Form S-3, Form S-4 and Form S-8,  respectively,
under the 1933 Act subsequently adopted by the SEC.

         SECTION 1.2.  Demand  Registration.  (a)  Beginning 180 days after date
hereof,  if the Company shall receive at any time a written  request  ("Demand")
from  Holders  holding  in the  aggregate  in excess  of 50% of the  Registrable
Securities then outstanding  that the Company effect the  registration  covering
the  sale  or  resale  of at  least  50%  of  the  Registrable  Securities  then
outstanding  (the Holders making a Demand being  referred to as the  "Initiating
Holders"), then the Company shall, within five days of the receipt thereof, give
written  notice  of such  request  to all  Holders  and  shall,  subject  to the
limitations  of this  Section  1.02,  use its  best  efforts  to  effect  such a
registration  as soon as practicable and in any event to file within 180 days of
the receipt of such Demand a registration  statement under the 1933 Act covering
all  the  Registrable   Securities  which  the  Initiating  Holders  shall  have
requested,  and all  Registrable  Securities  which the  Holders  other than the
Initiating  Holders  shall in writing  request  within 20 days of receipt of the
notice  given by the Company to be included  in such  registration,  and use its
best efforts to have such  registration  statement become  effective;  provided,
however,  that the Company shall not be obligated  under this Section 1.02(a) to
effect any registration (i) pursuant to a Demand of an amount of securities that
is less than 50% of the amount of Registrable  Securities  outstanding as of the
date hereof, or (ii) after any registration  statement  pursuant to a Demand has
become  effective,  but  only to the  extent  that  all  Registrable  Securities
requested to be registered have been included in such registration.



<PAGE>


          (b) If the Initiating  Holders  intend to distribute  the  Registrable
Securities  covered by their request by means of an underwriting,  they shall so
advise the Company as part of their request made pursuant to paragraph  (a), and
the Company shall include such  information in the written notice given pursuant
to  paragraph  (a).  In such  event,  the  right of any  Holder to  include  its
Registrable  Securities  in such  registration  shall be  conditioned  upon such
Holder's  participation in such  underwriting and the inclusion of such Holder's
Registrable  Securities in the underwriting (unless otherwise mutually agreed by
a majority in interest of the Initiating  Holders and such Holder) to the extent
provided herein.  All Holders  proposing to distribute their securities  through
such  underwriting  shall  (together  with the  Company as  provided  in Section
1.04(e))  enter into an  underwriting  agreement in a form that is customary and
otherwise  reasonably   acceptable  to  the  Company  with  the  underwriter  or
underwriters  selected  for such  underwriting  by a majority in interest of the
Initiating  Holders,  who shall first consult with and obtain the consent of the
Company's  Board  of  Directors  (which  shall  not  be  unreasonably  withheld)
regarding the selection of an underwriter or underwriters.  Notwithstanding  any
other  provision  of this  Section  1.02,  if,  in the  case  of a  registration
requested  pursuant to paragraph  (a), the  underwriter  advises the  Initiating
Holders and the Company in writing that marketing  factors  require a limitation
of the number of shares to be underwritten, then the Company shall so advise all
Holders of Registrable  Securities that would otherwise be underwritten pursuant
hereto,  and the number of  Registrable  Securities  that may be included in the
underwriting  shall be allocated pro rata among all Holders  thereof  (including
the Initiating Holders) desiring to participate in such underwriting  (according
to the number of Registrable Securities requested to be sold by each Holder). No
Registrable  Securities  requested by a Holder to be included in a  registration
pursuant to paragraph  (a) shall be excluded  from the  underwriting  unless all
securities other than Registrable Securities are first excluded.

          (c) The  Company  shall  not be  obligated  to  effect  more  than one
registration  pursuant to a Demand under clause Section  1.02(a);  provided that
all  Registrable  Securities  requested  to be  registered  are included in such
registration;  provided, further, that no registration of Registrable Securities
shall be deemed to be a  registration  for the  purpose  of this  paragraph  (c)
unless such registration  shall have become and remained effective in accordance
with Section 1.04.



<PAGE>


          (d)  Notwithstanding  the other  provisions of this Section 1.02,  the
Company shall not be obligated to effect the filing of a registration  statement
pursuant to this Section 1.02: (i) during the period  starting on the date which
is 45 days prior to the date which the Company  estimates  in good faith will be
the date of filing of, and ending on the date 180 days  following  the effective
date of, a registration statement pertaining to the underwritten public offering
of  securities  for the  account of the  Company;  provided  that the Company is
actively   employing  in  good  faith  all  reasonable  efforts  to  cause  such
registration  statement  to become  effective  and is  responding  in writing to
Holder's  reasonable  inquiries with respect thereto to the extent  permitted by
law; (ii) if the Company has furnished to the Initiating  Holders within 30 days
after receipt of their Demand  pursuant to Section 1.02(a) an opinion of counsel
to the Company  (which counsel and opinion are  reasonably  satisfactory  to the
Initiating  Holders)  to the effect that the  Initiating  Holders may effect the
sale and  distribution of the Registrable  Securities  included in their request
without the  registration of such securities under the 1933 Act; or (iii) if the
Company has furnished to the Initiating  Holders within 30 days after receipt of
their Demand  pursuant to Section  1.02(a) a certificate  signed by an executive
officer of the Company  stating that in the good faith  judgment of the Board of
Directors of the Company,  it would be seriously  detrimental to the Company and
its  stockholders  for  the  requested  registration  to  be  effected  or  such
registration  would require  premature  disclosure of material  information or a
special audit of the Company, in which event the Company shall have the right to
defer such  registration for a period of not more than 120 days after receipt of
the Demand of the Initiating Holders.

          (e) Each  registration  requested  pursuant to paragraph  (a) shall be
effected by the filing of a registration  statement on Form S-3 (or if such form
is not  available,  such form as the Company and its counsel  deem  appropriate,
consistent with SEC rules.)

          (f) The  Company  shall be  entitled to rely upon and assume the truth
and accuracy of the  statements  contained  in a Demand,  unless the Company has
actual  knowledge  that any such  statement  is untrue or unless the  Company is
otherwise notified in writing by a party to this Agreement.

         SECTION  1.3.  Company  Registration.  (a) If the  Company  proposes to
register (including for this purpose a registration  effected by the Company for
stockholders  other than the Holders)  any of its capital  stock or other equity
securities (including any securities convertible into or exchangeable for equity
securities)  under the 1933 Act in connection  with the public  offering of such
securities (other than a registration on Form S-8 or any successor form relating
solely to the sale of securities to  participants  in a Company stock plan, or a
registration  on Form S-4 or any successor  form),  the Company  shall,  at such
time, promptly give each Holder written notice of such registration. The Company
shall request that any Holder that wants the registration statement to cover the
sale and resale of the  Registrable  Securities  owned by such  Holder  (whether
issued or unissued), give notice within 20 days after the receipt by such Holder
of the notice of registration by the Company.  The Company shall, subject to the
provisions  of  paragraph  (b),  use its best  efforts  to cause a  registration
statement covering the sale or resale of all of the Registrable  Securities that
each such Holder has requested to be registered  to become  effective  under the
1933 Act. The Company shall have no  obligation  under this Section 1.03 to make
any offering of its  securities  or to complete  any offering of its  securities
that it proposes to make,  and shall  incur no  liability  to any Holder for its
failure to do so. If,  after a request by the Company  pursuant to this  Section
1.03(a),  a Holder does not request that the  registration  statement  cover its
Registrable  Securities,  such Holder waives its registration rights pursuant to
Sections 1.02 and 1.03 of this Agreement.



<PAGE>


          (b) In  connection  with any  offering  involving an  underwriting  of
securities being issued by the Company,  the Company shall not be required under
this Section 1.03 to include any of the Holders' securities in such underwriting
unless they  accept the terms of the  underwriting  as agreed  upon  between the
Company and the underwriters  selected by it, and then only in such quantity, if
any, as will not, in the reasonable opinion of the underwriters,  jeopardize the
success of the offering by the  Company.  If the  managing  underwriter  for the
offering  shall advise the Company in writing that marketing  factors  require a
limitation of the number of shares to be underwritten, then the Company shall so
advise  all  Holders  of  Registrable   Securities   which  would  otherwise  be
underwritten pursuant this Section 1.03, and the number of shares of Registrable
Securities  that may be  included  in the  underwriting  shall be  allocated  in
accordance with paragraph (c).

          (c) If the Company shall, pursuant to paragraph (b), reduce the amount
of securities  to be included in an offering,  such  reduction  shall be made as
follows:  First,  all securities  other than those to be included by the Company
for its own account  and other than those  which the Holders  seek to include in
the offering shall be excluded from the offering to the extent limitation on the
number of shares  included in the  underwriting  is required;  then,  if further
limitation  on the  number of  shares  to be  included  in the  underwriting  is
required,  the number of shares  held by  Holders  that may be  included  in the
underwriting  shall be reduced pro rata among the selling  Holders in accordance
with the number of shares of Registrable Securities requested to be sold by each
such Holder.

         SECTION 1.4.  Obligations of the Company.  Whenever required under this
Article 1 to use its best efforts to effect the  registration of any Registrable
Securities, the Company shall:

          (a) As expeditiously as reasonably possible, prepare and file with the
SEC a registration statement with respect to such Registrable Securities and use
its best efforts to cause such  registration  statement to become effective and,
upon the  request of Holders  holding a majority of the  Registrable  Securities
registered thereunder,  keep such registration statement effective for up to 135
days or until such  Holders  have  informed  the  Company  in  writing  that the
distribution of their securities has been completed;

          (b) Prepare and file with the SEC such  amendments and  supplements to
such  registration  statement and the  prospectus  used in connection  with such
registration statement, and use its best efforts to cause each such amendment to
become effective,  as may be necessary to comply with the provisions of the 1933
Act  with  respect  to  the  disposition  of  all  securities  covered  by  such
registration statement;


<PAGE>


          (c) Furnish to the selling Holders such reasonable number of copies of
a  prospectus,  including  a  preliminary  prospectus,  in  conformity  with the
requirements  of the 1933 Act, and such other  documents as they may  reasonably
request in order to facilitate  the  disposition of the  Registrable  Securities
covered by such registration statement that are owned by them;

          (d) Use its best efforts to register or qualify the securities covered
by such  registration  statement under such other securities or Blue Sky laws of
such states and  jurisdictions as shall be reasonably  requested by the Holders,
provided that the Company shall not be required in connection  therewith or as a
condition  thereto  to qualify to do  business  or to file a general  consent to
service of process in any such state or jurisdiction;

          (e) In the event of any underwritten  public offering,  enter into and
perform its obligations under an underwriting  agreement, in usual and customary
form, with the managing underwriter of such offering;  provided,  further,  that
each Holder participating in such underwriting shall also enter into and perform
its  obligations  under such an agreement,  including  furnishing any opinion of
counsel  or  entering  into a  lock-up  agreement  reasonably  requested  by the
managing underwriter;

          (f)  Notify  each  Holder of  Registrable  Securities  covered by such
registration  statement,  at any time when a prospectus relating thereto covered
by such  registration  statement is required to be delivered under the 1933 Act,
of the  happening of any event as a result of which the  prospectus  included in
such registration  statement, as then in effect, includes an untrue statement of
a material fact or omits to state a material fact required to be stated  therein
or necessary to make the  statements  therein not misleading in the light of the
circumstances then existing, promptly file such amendments and supplements which
may be required  pursuant to paragraph (b) on account of such event, and use its
best efforts to cause each such amendment and supplement to become effective;



<PAGE>


          (g) Furnish,  at the request of any Holder of  Registrable  Securities
covered  by such  registration  statement,  on the date  that  such  Registrable
Securities  are  delivered to the  underwriters  for sale in  connection  with a
registration,  if such  securities are being sold through  underwriters,  or, if
such  securities are not being sold through  underwriters,  on the date that the
registration statement with respect to such securities becomes effective, (i) an
opinion or opinions,  dated such date, of the counsel  representing  the Company
for the purposes of such  registration,  in form and substance as is customarily
given by company counsel to the underwriters in an underwritten public offering,
addressed  to the  underwriters,  if  any,  and to the  Holders  of  Registrable
Securities  covered by such registration  statement and (ii) a letter dated such
date, from the independent  certified public accountant of the Company,  in form
and  substance  as  is  customarily   given  by  independent   certified  public
accountants to underwriters in an underwritten public offering, addressed to the
underwriters,  if any, and to the Holders of Registrable  Securities  covered by
such registration statement;
          (h) Apply for listing and use its best efforts to list the Registrable
Securities being registered on any national securities exchange on which a class
of the Company's equity  securities is listed or, if the Company does not have a
class of equity  securities  listed on a national  securities  exchange,  to the
extent  that  the  securities  of  the  Company  would  so  qualify,  apply  for
qualification  and use its best  efforts to qualify the  Registrable  Securities
being registered for inclusion on the automated quotation system of the National
Association of Securities Dealers, Inc.;
          (i) Without in any way  limiting the types of  registrations  to which
this  Article  1 shall  apply,  in the event  that the  Company  shall  effect a
registration  under  Rule 415  under the 1933 Act,  take all  necessary  action,
including without limitation the filing of post-effective  amendments, to permit
the Holders to include  their  Registrable  Securities in such  registration  in
accordance with the terms of this Article 1; and

          (j) If  necessary  to  register  the  Note,  the  Company  will  issue
substitute  notes  ("Substitute  Notes")  pursuant  to an  indenture  with terms
consistent  with the  provisions  of the Note,  this  Agreement  and the related
documents and qualify such indenture  under the Trust Indenture Act of 1939. The
Substitute Notes will have substantially similar terms as the Note and will have
the same rate, maturity, convertibility,  subordination and other economic terms
as the Note.

         SECTION  1.5.  Furnishing  of  Information.  It  shall  be a  condition
precedent to the  obligations of the Company to take any action pursuant to this
Article 1 in respect of the  Registrable  Securities of any selling  Holder that
such selling Holder shall have furnished to the Company such  information as the
Company shall reasonably  request regarding such selling Holder, the Registrable
Securities held by such selling  Holder,  and the intended method of disposition
of such  securities  as shall be  required  to effect the  registration  of such
selling Holder's Registrable Securities, and that such selling Holder shall have
provided the Company with such  representations  and  warranties,  covenants and
opinions as are  customary  for a selling  stockholder  in  connection  with the
registration of a selling stockholder's securities.

         SECTION 1.6.  Expenses of Registration.  (a) The Company shall bear the
expenses incurred in connection with the registration,  filing or qualification,
including  all  registration,   filing  and  qualification  fees,  printing  and
accounting  fees,  the  reasonable  fees and  disbursements  of counsel  for the
Company.  The Holders of any Registrable  Securities shall bear and pay the fees
and  disbursements of counsel or other advisors,  including  without  limitation
accountants and financial advisors, for the selling Holders.



<PAGE>


          (b) Underwriting discounts and commissions relating to the Registrable
Securities included in a registration  pursuant to this Article 1 shall be borne
and paid  ratably  by the  Holders of such  Registrable  Securities  and,  if it
participates, by the Company.

         SECTION  1.7.  Indemnification.  In  the  event  that  any Registrable
Securities  are included in a registration statement under this Article 1:



<PAGE>


          (a) The Company shall  indemnify  and hold  harmless each Holder,  the
officers,  directors,  partners,  agents  and  employees  of  each  Holder,  any
underwriter  (as  defined in the 1933 Act) for such Holder and each  person,  if
any, who controls (within the meaning of the 1933 Act or the Securities Exchange
Act of 1934,  as amended  ("1934 Act")) such Holder or  underwriter  against any
losses,  claims,  damages,  or liabilities  (joint or several) to which they may
become  subject for  violation of the 1933 Act, the 1934 Act or other federal or
state  law,  and any  legal or other  expenses  reasonably  incurred  by them in
connection with  investigating  or defending any such loss,  claim,  damage,  or
liability  (or action with  respect  thereto)  insofar as such  losses,  claims,
damages,  liabilities  or  actions  arise  out of or are  based  upon any of the
following  statements,  omissions or violations (a "Violation"):  (i) any untrue
statement of a material fact contained in such registration statement, including
any  preliminary  prospectus  or  final  prospectus  contained  therein  or  any
amendments  or  supplements  thereto,   (ii)  the  omission  to  state  in  such
registration  statement  a  material  fact  required  to be  stated  therein  or
necessary to make the statements therein, in light of the circumstances in which
they were made,  not  misleading,  or (iii) any  violation by the Company of the
1933 Act,  the 1934  Act,  any state  securities  law or any rule or  regulation
promulgated  under the 1933 Act,  the 1934 Act or any  state  securities  law in
connection with any matter relating to such  registration  statement;  provided,
however,  that the Company  shall not be liable  under this  paragraph:  (i) for
amounts paid in settlement of any loss, claim, damage,  liability,  or action if
such  settlement is effected  without the consent of the Company  (which consent
shall  not be  unreasonably  withheld),  nor (ii) for any loss,  claim,  damage,
liability,  or action (A) to the extent that it arises out of or is based upon a
Violation  which  occurs  in  reliance  upon  and  in  conformity  with  written
information  furnished expressly for use in connection with such registration by
or on behalf of such Holder,  underwriter  or  controlling  person or (B) in the
case of a sale directly by a Holder of Registrable  Securities (including a sale
of such Registrable  Securities through any underwriter  retained by such Holder
to engage in a distribution solely on behalf of such Holder), to the extent that
it arises out of or is based on an untrue  statement or alleged untrue statement
or omission or alleged  omission that was contained in a preliminary  prospectus
and  corrected  in a final or  amended  prospectus,  and such  Holder  failed to
deliver  a  copy  of  the  final  or  amended  prospectus  at or  prior  to  the
confirmation of the sale of the Registrable  Securities to the person  asserting
any such loss,  claim,  damage or liability  in any case where such  delivery is
required by the Securities Act.

          (b)  The  Company  may  require,  as  a  condition  to  including  the
Registrable Securities held by any Holder in any registration statement pursuant
to this Section 1, that the Company shall have received an undertaking from such
Holder to indemnify and hold harmless the Company,  each of its directors,  each
of its officers who have signed the registration statement, each person, if any,
who  controls  the  Company  within the meaning of the 1933 Act or the 1934 Act,
each agent and any  underwriter  for the Company,  and any other Holder  selling
securities in such  registration  statement or any of its  directors,  officers,
partners,  agents  or  employees  or any  person  who  controls  such  Holder or
underwriter,  against any losses,  claims,  damages,  or  liabilities  (joint or
several) to which the Company or any such director, officer, controlling person,
agent, or underwriter or controlling  person,  or other such Holder or director,
officer or controlling  person may become subject,  under the 1933 Act, the 1934
Act or other  federal or state law, and any legal or other  expenses  reasonably
incurred by the Company or any such director, officer, controlling person, agent
or underwriter or controlling person, other Holder, officer, director,  partner,
agent,  employee,  or controlling  person in connection  with  investigating  or
defending  any such loss,  claim,  damage,  or liability (or action with respect
thereto), insofar as such losses, claims, damages,  liabilities or actions arise
out of or are based upon any Violation,  in each case to the extent (and only to
the extent) that such Violation  occurs in reliance upon and in conformity  with
written  information  furnished by or on behalf of such Holder expressly for use
in connection with such registration; provided, however, that no Holder shall be
required under this paragraph to incur any liability (i) in excess of the amount
of net proceeds (after deduction of all underwriters' discounts and commissions)
received by such Holder in the offering  giving rise to the Violation;  (ii) for
any amounts paid in settlement  of any such loss,  claim,  damage,  liability or
action if such  settlement is effected  without the consent of the Holder (which
consent  shall not be  unreasonably  withheld);  nor (iii) in the case of a sale
directly by the Company of its securities  (including a sale of such  securities
through any  underwriter  retained  by the  Company to engage in a  distribution
solely on behalf of the Company),  in any case in which such untrue statement or
omission was contained in a preliminary  prospectus  and corrected in a final or
amended  prospectus,  and the  Company  failed to deliver a copy of the final or
amended prospectus at or prior to the confirmation of the sale of the securities
to the person  asserting any such loss,  claim,  damage or liability in any case
where such delivery is required by the 1933 Act.



<PAGE>


          (c) Promptly  after receipt by an  indemnified  party pursuant to this
Section  1.07  of  notice  of the  commencement  of any  action  (including  any
governmental  action),  such  indemnified  party  shall,  if a claim in  respect
thereof is to be made against any  indemnifying  party under this Section  1.07,
deliver to the  indemnifying  party a written notice of the commencement of such
action and the  indemnifying  party shall have the right to participate in, and,
to the  extent  the  indemnifying  party so  desires,  jointly  with  any  other
indemnifying party similarly noticed,  to assume and control the defense thereof
with counsel mutually  satisfactory to the parties;  provided,  however, that an
indemnified party shall have the right to retain its own counsel,  with the fees
and expenses to be paid by the  indemnifying  party, if  representation  of such
indemnified  party by the counsel  retained by the  indemnifying  party would be
inappropriate  due to actual or potential  differing  interests,  as  reasonably
determined by either party,  between such indemnified  party and any other party
represented  by such  counsel in such  proceeding.  The  failure to deliver  the
written notice required by this paragraph (c) to the indemnifying party within a
reasonable time of the  commencement  of any such action,  if prejudicial to its
ability to defend such  action,  shall  relieve such  indemnifying  party of any
liability to the indemnified party under this Section 1.07 to the extent of such
prejudice,  but the omission so to deliver  written  notice to the  indemnifying
party will not relieve it of any liability  that it may have to any  indemnified
party otherwise than under this Section 1.07.

          (d) The  obligations of the Company and the Holders under this Section
1.07 shall survive the  conversion,  if any, of the Notes and the  completion of
any offering of  Registrable  Securities in a  registration  statement,  whether
under this Section 1 or otherwise.



<PAGE>


          (e) If the  indemnification  provided  for in  this  Section  1.07  is
unavailable  to a party  that would have been an  indemnified  party  under this
Section  1.07 in respect of any  losses,  claims,  damages  or  liabilities  (or
actions or proceedings with respect thereto) referred to herein, then each party
that  would  have  been  an  indemnifying  party  thereunder  shall,  in lieu of
indemnifying such indemnified party, contribute to the amount paid or payable by
such  indemnified  party  as  a  result  of  such  losses,  claims,  damages  or
liabilities (or actions or proceedings in respect thereof) in such proportion as
is appropriate to reflect the relative fault of such  indemnifying  party on the
one  hand and  such  indemnified  party  on the  other  in  connection  with the
statements  or  omissions  which  resulted in such  losses,  claims,  damages or
liabilities (or actions or proceedings in respect  thereof).  The relative fault
shall be determined  by reference to, among other things,  whether the Violation
relates to information  supplied by such indemnifying  party of such indemnified
party and the parties'  relative  intent,  knowledge,  access to information and
opportunity  to correct or prevent  such  Violation.  The parties  agree that it
would not be just and equitable if  contribution  pursuant to this paragraph (e)
were  determined  by pro rata  allocation  or by any other method of  allocation
which does not take account of the equitable  considerations  referred to in the
preceding  sentence.  The amount  paid or payable by a  contributing  party as a
result of the losses,  claims, damages or liabilities (or actions or proceedings
in respect  thereof)  referred to above in this  paragraph (e) shall include any
legal  or  other  expenses  reasonably  incurred  by such  indemnified  party in
connection with  investigating  or defending any such action or claim. No person
guilty of fraudulent  misrepresentation  (within the meaning of Section 11(f) of
the 1933 Act)  shall be  entitled  to  contribution  from any person who was not
guilty of such  fraudulent  misrepresentation.  The  liability  of any Holder of
Registrable Securities in respect of any contribution  obligation of such Holder
(after  deduction of all  underwriters'  discounts and commissions and all other
expenses paid by such Holder in connection  with the  registration  in question)
arising  under this  paragraph (e) shall not in any event exceed an amount equal
to the net  proceeds  to such  Holder from the  disposition  of the  Registrable
Securities disposed of by such Holder pursuant to such registration.

         SECTION 1.8.  Reports under 1934 Act.

          (a)  Resales  Under Rule 144;  Form S-3  Registration.  With a view to
making  available  to the  Holders  the  benefits of Rule 144 under the 1933 Act
("Rule  144") and any other rule or  regulation  of the SEC that may at any time
permit  a  Holder  to sell  securities  of the  Company  to the  public  without
registration,  and with a view to making it possible for Holders to register the
Registrable  Securities  pursuant  to a  registration  on Form S-3,  the Company
agrees to:

                  (i) use its best  efforts to make and keep public  information
         available, as those terms are understood as defined in Rule 144;

                 (ii) take such action,  including the voluntary registration of
         the Common  Stock under  Section 12 of the 1934 Act, as is necessary to
         enable  the  Holders  to  utilize  Form  S-3  for  the  sale  of  their
         Registrable Securities;

                (iii)  use its  best  efforts  to file  with the SEC in a timely
         manner all reports and other  documents  required of the Company  under
         the 1933 Act and the 1934 Act; and

                 (iv)  furnish to any  Holder,  so long as the  Holder  owns any
         Registrable Securities,  forthwith upon request (A) a written statement
         by the Company as to its compliance with the reporting  requirements of
         Rule  144,  the 1933  Act and the  1934  Act (at any time  after it has
         become  subject  to  such  reporting   requirements),   or  as  to  its
         qualification  as a registrant  whose securities may be resold pursuant
         to Form S-3 (at any time after it so qualifies), (B) a copy of the most
         recent annual or quarterly report of the Company and such other reports
         and documents so filed by the Company,  and (C) such other  information
         as may be  reasonably  requested  in  availing  any Holder of any rule,
         regulation  or form of the SEC which  permits  the  selling of any such
         securities without registration or pursuant to such form.


<PAGE>



          (b) Resale  Under Rule 144A.  At all times during which the Company is
neither  subject to the  reporting  requirements  of Sections 13 or 15(d) of the
1934 Act nor exempt from  reporting  pursuant to Rule  12g3-2(b)  under the 1934
Act, the Company shall, upon the written request of a Holder, provide in written
form to such Holder and to any prospective  purchaser of Registrable  Securities
designated by such Holder, all information  required by Rule 144A(d)(4)(i) under
the 1933 Act ("144A  Information").  With respect to each Holder,  the Company's
obligations  under this paragraph (b) shall at all times be contingent upon such
Holder's  obtaining  from a  prospective  purchaser  an  agreement  to take  all
reasonable  precautions  to safeguard the 144A  Information  from  disclosure to
anyone other than employees of the  prospective  purchaser who require access to
the 144A  Information  for the sole  purpose of  evaluating  its purchase of the
Company's securities.

         . If reasonably requested by the Company and the managing  underwriter,
the Holders  shall enter into lock-up  agreements  pursuant to which they agree,
for a period up to of 90 days  following  the effective  date of a  registration
statement  for the public  offering of the Company's  securities,  not to offer,
sell or otherwise  dispose of any Registrable  Securities except the Registrable
Securities  sold  pursuant  to such  registration  statement  without  the prior
consent of the Company and the managing underwriter.

         .  The  transfer  by a  Holder  of  any of  such  Holder's  Registrable
Securities  or rights to  acquire  Registrable  Securities  shall,  unless  such
securities  cease to be  Registrable  Securities  by  reason  of such  transfer,
constitute an assignment  to such  transferee of the Holder's  rights under this
Agreement with respect to such Registrable Securities;  provided,  however, that
no Holder  other than the  Investor  party  hereto  shall  enjoy any rights as a
Holder under this Agreement until such time as (i) such Holder holds, after such
transfer, at least fifty percent of the Registrable Securities outstanding as of
the date  hereof,  and (ii)  such  Holder  delivers  to the  Company  a  written
instrument  by which  such  Holder  agrees  to be bound by the  obligations  and
representations  imposed upon Holders under this agreement to the same extent as
if such Holder were a party hereto.



<PAGE>


         . From and after the date of this  Agreement,  the  Company  shall not,
without  the prior  written  consent of the  Holders  holding a majority  of the
Registrable  Securities  then  outstanding,  enter into any  agreement  with any
holder or  prospective  holder of any  securities  of the  Company  relating  to
registration rights unless such agreement provides that, to the extent that such
agreement  would  allow  such  holder  or  prospective  holder to  include  such
securities in any registration filed under this Section 1, a provision that such
holder  or  prospective   holder  may  include  such   securities  in  any  such
registration  only to the extent that the inclusion of its  securities  will not
reduce the amount of the  Registrable  Securities  of the  Holders  which  would
otherwise be included.

         . This  agreement,  and the  respective  rights and  obligations of the
parties  hereto,  shall  terminate  at such  time as  there  are no  longer  any
Registrable  Securities  outstanding or issuable upon the conversion or exercise
of any  outstanding  securities  of the  Company;  provided,  however,  that the
provisions  of Section 1.07 shall not terminate at that time and shall remain in
force.

         . (a) Investment  Purpose.  Investor (i) is acquiring the Note and (ii)
upon  conversion  of the Note  will  acquire  the  Registrable  Securities  then
issuable  for its own  account  and not with a view  towards,  or for  resale in
connection  with, the public sale or  distribution  thereof,  except pursuant to
sales registered under or exempted from the 1933 Act.

          (b) Accredited Investor Status.  Investor is an "accredited  investor"
as that term is defined in Rule 501(a) of Regulation D as promulgated by the SEC
under the 1933 Act.

          (c)  Reliance on  Exemptions.  Investor  understands  that the Note is
being  issued to it in  reliance on specific  exemptions  from the  registration
requirements  of United States  federal and state  securities  laws and that the
company  is  relying  in part upon the truth and  accuracy  of,  and  Investor's
compliance with, the representations,  warranties, agreements,  acknowledgements
and  understandings  of  Investor  set forth  herein in order to  determine  the
availability  of such  exemptions and the eligibility of Investor to acquire the
Note.



<PAGE>


          (d) Transfer or Resale.  Investor understands that except as otherwise
provided in this Agreement (i) the Note or Registrable  Securities have not been
and are not being  registered  under the 1933 Act or any state  securities laws,
and may not be  offered  for sale,  sold,  assigned  or  transferred  unless (A)
subsequently registered thereunder, (B) the Note or Registrable Securities to be
sold, assigned or transferred may be sold,  assigned or transferred  pursuant to
an exemption from such registration,  or (C) such Note or Registrable Securities
can be sold, assigned or transferred  pursuant to Rule 144; (ii) any sale of the
Note or Registrable  Securities made in reliance on Rule 144 may be made only in
accordance  with  the  terms  of  Rule  144  and  further,  if  Rule  144 is not
applicable, any resale of the Securities under circumstances in which the seller
(or the person through whom the sale is made) may be deemed to be an underwriter
(as that term is defined in the 1933 Act) may require compliance with some other
exemption under the 1933 Act or the rules and regulations of the SEC thereunder;
and (iii)  neither the Company nor any other person is under any  obligation  to
register such securities  under the 1933 Act or any state  securities laws or to
comply with the terms and conditions of any exemption thereunder.
          (e)  Substitute  Notes.  If necessary  to register the Note,  Investor
agrees to accept the Substitute Notes in exchange for the Note.



                                    ARTICLE 2

                                  MISCELLANEOUS

 .  Each certificate representing Registrable Securities shall state thereon:

                  [NEITHER  THIS NOTE NOR THE]  [THESE]  SHARES OF THE  ISSUER'S
                  COMMON STOCK [ISSUABLE UPON CONVERSION HEREOF] HAVE [NOT] BEEN
                  REGISTERED  UNDER THE  SECURITIES ACT OF 1933, AS AMENDED (THE
                  "SECURITIES  ACT"), OR ANY STATE  SECURITIES  LAWS. [THIS NOTE
                  HAS BEEN (AND ANY SUCH  SHARES  WILL BE)]  [THESE  SHARES HAVE
                  BEEN] ACQUIRED FOR INVESTMENT AND MAY NOT BE OFFERED FOR SALE,
                  SOLD,  TRANSFERRED  OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE
                  REGISTRATION  STATEMENT  FOR [THIS NOTE OR] SUCH SHARES  UNDER
                  THE SECURITIES ACT, OR APPLICABLE STATE SECURITIES LAWS, OR AN
                  EXEMPTION  FROM SUCH  REGISTRATION  OR UNLESS SOLD PURSUANT TO
                  RULE 144 UNDER THE SECURITIES ACT.

or shall bear a similar  legend  indicating  the existence of this Agreement and
the restrictions imposed thereby.

         . All notices,  requests,  consents and demands shall be in writing and
shall be personally  delivered,  mailed  (registered or certified  mail,  return
receipt  requested,  postage  prepaid),  telecopied or sent by overnight courier
service, to the Company at:

                  Mark Bibi
                  Unilab Corporation
                  401 Hackensack Avenue
                  Hackensack, NJ 07601
                  Telecopier: (201) 525-1331



<PAGE>


with a copy to:
                  Donald S. Bernstein
                  Davis Polk & Wardwell
                  450 Lexington Avenue
                  New York, NY  10017
                  Telecopier: (212) 450-4800

to Investor at:
                  Philip A. Tremonti
                  Meris Laboratories, Inc.
                  1075 East Brokaw Road
                  San Jose, CA 95131
                  Telecopier: (408) 453-8093

with a copy to:
                  Philip A. Tremonti
                  c/o PricewaterhouseCoopers
                  400 South Hope Street, 21st Floor
                  Los Angeles, California 90071-2889
                  Telecopier: (213) 452-7910

                  Robert Jay Moore
                  Milbank, Tweed, Hadley & McCloy
                  601 South Figueroa Street, 30th Floor
                  Los Angeles, CA 90017
                  Telecopier: (213) 629-5063

                  Robert Davenport
                  c/o Cerberus Partners
                  450 Park Avenue, 28th Floor
                  New York, NY 10022
                  Telecopier: (212) 891-1541

                  Mark Broude
                  Schulte Roth & Zabel LLP
                  900 Third Avenue
                  New York, NY 10022
                  Telecopier: (212) 593-5955



<PAGE>


or such other  addresses  as may be  furnished  in writing to the other  parties
hereto.  Unless otherwise provided herein, all such notices,  requests,  demands
and other  communications,  when  personally  delivered,  shall be  effective on
delivery;  when mailed  (registered or certified mail, return receipt requested,
postage  prepaid),  shall be  effective  four days  after  deposit  in the mails
addressed as aforesaid; when telecopied, shall be effective upon confirmation of
receipt;  and,  when sent by overnight  courier  service  guaranteeing  next-day
delivery,  shall be effective the next business day following timely delivery to
the courier.

         . This Agreement  constitutes the entire  agreement of the parties with
respect to the matters  contemplated  herein. This Agreement  supersedes any and
all  prior  understandings  or  agreements  as to the  subject  matter  of  this
Agreement.

         . Any  provision in this  Agreement  to the  contrary  notwithstanding,
changes in or additions to this Agreement may be made,  and compliance  with any
covenant or provision herein set forth may be omitted or waived,  if the Company
(i) shall obtain consent  thereto in writing from the Holders holding a majority
of the  Registrable  Securities  then  outstanding  and (ii) shall, in each such
case,  deliver  copies of such  consent in writing  to any  Holders  who did not
execute such  consent.  Notwithstanding  the  foregoing,  any  amendment to this
Agreement  which  materially  adversely  affects  the  rights  or  substantially
increases the  obligations of one or more Holders and which does not also affect
all other  Holders  either to the same degree or in  proportion to the amount of
Registrable  Securities  held by each of them shall  require  the consent of the
Holders holding a majority of the Registrable Securities adversely affected.

         . This Agreement  shall,  subject to the provisions of Section 1.10, be
binding  upon  and  inure  to  the  benefit  of  the  personal  representatives,
successors and assigns of the respective  parties hereto.  The Company shall not
have the  right to assign  its  obligations  hereunder  or any  interest  herein
without obtaining the prior written consent of the Holders holding a majority of
the Registrable Securities then outstanding, provided in accordance with Section
2.04.

         . The headings  contained in this Agreement are for reference  purposes
only and shall not in any way  affect  the  meaning  or  interpretation  of this
Agreement.  In this Agreement the singular includes the plural,  the plural, the
singular,  the  masculine  gender  includes the neuter,  masculine  and feminine
genders. This Agreement shall be governed by and construed under the laws of the
State of New York.



<PAGE>


         . If any  provisions of this  Agreement  shall be found by any court of
competent jurisdiction to be invalid or unenforceable,  the parties hereby waive
such  provision  to the extent that it is found to be invalid or  unenforceable.
Such provision  shall,  to the maximum  extent  allowable by law, be modified by
such court so that it becomes enforceable,  and, as modified,  shall be enforced
as any other provision  hereof,  all the other provisions  hereof  continuing in
full force and effect.

         .  This  Agreement  may be  executed  in  counterparts,  all  of which
together shall constitute one and the same instrument.

         . The Company and the Investor recognize that the rights of the parties
under this Agreement are unique, and, accordingly, each party shall, in addition
to such other  remedies as may be available to it at law or in equity,  have the
right to enforce  its rights  hereunder  by actions  for  injunctive  relief and
specific  performance  to the extent  permitted  by law.  This  Agreement is not
intended to limit or abridge any rights of the  parties  hereto  which may exist
apart from this Agreement.

         [The rest of this page has been intentionally left blank.]



<PAGE>


         IN WITNESS WHEREOF,  the parties have caused this  Registration Rights
Agreement to be duly executed as of the date first above written.

                                        UNILAB CORPORATION


                                        By:__________________________


                                        MERIS LABORATORIES, INC.


                                        By:__________________________







                         









                            MERIS LABORATORIES, INC.
                             (DEBTOR-IN-POSSESSION)

                        CONSOLIDATED FINANCIAL STATEMENTS
             WITH REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

                                    * * * * *

                                DECEMBER 31, 1997






<PAGE>




                                                  November 12, 1998

To the Board of Directors
  and Shareholders of
    Meris Laboratories, Inc.

               REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

         In our opinion,  the  accompanying  consolidated  balance sheet and the
related consolidated  statements of operations,  shareholders'  deficit and cash
flows present fairly, in all material respects,  the financial position of Meris
Laboratories,  Inc.  (Debtor-in-possession)  and its subsidiary,  Meris, Inc. at
December 31, 1997 and 1996, and the results of its operations and its cash flows
for the years then ended,  in  conformity  with  generally  accepted  accounting
principles.  These consolidated  financial  statements are the responsibility of
the Company's  management;  our responsibility is to express an opinion on these
financial  statements  based on our  audits.  We  conducted  our audits of these
statements  in accordance  with  generally  accepted  auditing  standards  which
require that we plan and perform the audit to obtain reasonable  assurance about
whether the financial  statements  are free of material  misstatement.  An audit
includes  examining,  on a test  basis,  evidence  supporting  the  amounts  and
disclosures in the financial  statements,  assessing the  accounting  principles
used and  significant  estimates made by management,  and evaluating the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for the opinion  expressed  above.  The consolidated  financial
statements  of  Meris   Laboratories,   Inc.   (Debtor-in-possession)   and  its
subsidiary,  Meris,  Inc.  for the year ended  December 31, 1995 were audited by
other  auditors  whose  report  dated March 27, 1996  expressed  an  unqualified
opinion on those 976543365statements.

         As  discussed  in Notes 1, 2, 10 and 11 to the  consolidated  financial
statements,  on November 18, 1997,  the Company  filed a voluntary  petition for
relief  under  Chapter 11 of the  United  States  Bankruptcy  Code in the United
States Bankruptcy Court. On November 5, 1998, the Company sold substantially all
of its assets and ceased operations. A loss of $1.9 million has been provided in
the  consolidated  financial  statements for the year ended December 31, 1997 to
write-down  such assets to their net realizable  value.  The Company  intends to
file a plan of  reorganization  under which it will liquidate and distribute the
net proceeds of the sale and any remaining assets to its creditors, subject only
to the satisfaction of certain  administrative  and other priority  liabilities.
The consolidated financial statements do not reflect any adjustments that may be
required for the disposition of the remaining  assets at amounts  different from
those  reflected in the financial  statements or amounts which  creditors may be
required to accept in settlement  of  obligations  due them by the Company.  The
Company  and its  directors  and  former  officers  are  defendants  in  several
lawsuits.  Plaintiffs  in the  lawsuits  and  their  legal  counsel  have  filed
bankruptcy  claims in excess of $23 million.  At December 31, 1997,  the Company
has accrued  $515,000  in costs  associated  with such  lawsuits.  The  ultimate
resolution   of  the  lawsuits   cannot  be  determined  at  the  present  time;
accordingly,   the  consolidated   financial   statements  do  not  include  any
adjustments,  beyond the accrual noted above, that might result from the outcome
of these uncertainties.


<PAGE>
<TABLE>
                           
                            MERIS LABORATORIES, INC.
                             (DEBTOR-IN-POSSESSION)

                           CONSOLIDATED BALANCE SHEET
                      (In thousands, except per share data)
<CAPTION>

                                                                    September 30                 December 31
                                                                                          ---------------------------
                                                                      1 9 9 8              1 9 9 7         1 9 9 6
                                                                 -------------------      ----------      -----------
                                                                    (UNAUDITED)
                                                    A S S E T S
<S>                                                                <C>                   <C>           <C>
Current assets:
     Cash and cash equivalents                                      $       273           $       601   $       552
     Restricted cash                                                      2,036                 1,979         1,964
     Assets held for sale                                                16,928                16,928           -
     Accounts receivable, net of allowance for doubtful
         accounts of $2,122, $5,971 and $4,346                              134                   914         4,687
     Supplies inventory                                                     -                      66           511
     Prepaid expenses and other current assets                              926                 1,397         1,018
                                                                    -----------           -----------   -----------
         Total current assets                                            20,297                21,885         8,732

Property and equipment, net                                                 -                     -           1,559
Intangibles, net                                                            -                     -          15,343
Other assets, net                                                           -                     -             699
                                                                    -----------           -----------   -----------
                                                                    $    20,297           $    21,885   $    26,333
                                                                    ===========           ===========   ===========

                                       LIABILITIES AND SHAREHOLDERS' DEFICIT
Current liabilities:
     Liabilities not subject to compromise:
     Secured borrowings and accrued interest after filing for
         bankruptcy                                                 $     7,155           $     601     $       -
         Note payable to former executive                                 1,656               1,599           1,585
         Accrued litigation charges                                         319                 515           1,776
         Accounts payable and accrued expenses                            1,407                 805             -
     Liabilities subject to compromise:
         Secured borrowings and accrued interest before filing
              for bankruptcy                                             32,274              32,274          13,167
         Accrued Medicare settlement                                      3,350               3,350           4,250
         Accounts payable                                                 4,142               4,142           2,783
         Accrued expenses                                                 5,513               5,513           6,019
         Convertible subordinated debt                                   11,000              11,000          10,918
                                                                    -----------           ---------     -----------
         Total current liabilities                                       66,816              59,799          40,498
                                                                    -----------           ---------     -----------

Commitments and contingencies (Notes 5, 6 and 10)                           -                   -               -

Shareholders' deficit:
     Preferred stock, no par value:  2,000,000  shares
         authorized; none issued and outstanding                            -                   -               -
     Common stock, no par value:  20,000,000 shares authorized;
         8,043,859 shares issued and outstanding
                                                                         37,171              37,171          37,171
     Additional paid-in capital                                             826                 826             826
     Accumulated deficit                                                (84,516)            (75,911)        (52,162)
                                                                    -----------           ----------    -----------
                                                                        (46,519)            (37,914)        (14,165)
                                                                    -----------           ---------     -----------
                                                                    $    20,297           $  21,885     $    26,333
                                                                    ===========           =========     ===========
<FN>
See  accompanying  notes  to  consolidated  financial statements.
</FN>
</TABLE>

<PAGE>
<TABLE>

                                             MERIS LABORATORIES, INC.
                                              (DEBTOR-IN-POSSESSION)

                                        CONSOLIDATED STATEMENT OF OPERATIONS
                                       (In thousands, except per share data)
<CAPTION>

                                                        Nine months
                                                           ended
                                                       September 30                 Year ended December 31
                                                                           -----------------------------------------
                                                          1 9 9 8           1 9 9 7        1 9 9 6         1 9 9 5
                                                     ------------------    -----------    -----------     ----------
                                                    (UNAUDITED)

<S>                                                    <C>               <C>            <C>            <C>
Net revenues                                            $    19,727       $    29,903    $    34,106    $    42,809
                                                        -----------       -----------    -----------    -----------

Costs of services:
     Salaries, wages and benefits                             6,763            12,507         12,227         13,626
     Supplies                                                 3,267             4,946          5,144          5,022
     Other cost of services                                   6,341             7,208          7,197          7,964
                                                        -----------       -----------    -----------    -----------
                                                             16,371            24,661         24,568         26,612



Selling, general and administrative expenses                  8,351            15,785         12,019         12,221
Depreciation and amortization                                   -               2,240          3,302          4,429
Provision for doubtful accounts                               2,266             1,577          5,798          3,827
Litigation and investigation charges                            990             1,241          4,072          3,400
Write-down of intangible assets                                                 1,720          7,552          3,300
Write-off of fixed assets                                       -               1,982            -            1,272
                                                        -----------       -----------    -----------    -----------

Operating loss                                               (8,251)          (19,303)       (23,205)       (12,252)
Interest expense                                               (354)           (4,538)        (2,786)        (2,087)
Interest and other income, net                                  -                  92            159            177
                                                        -----------       -----------    -----------    -----------

Net loss                                                $    (8,605)      $   (23,749)   $   (25,832)   $   (14,162)
                                                        ===========       ===========    ===========    ===========


Net loss per share                                      $    (1.07)       $    (2.95)    $     (3.23)   $     (1.78)
                                                        ==========        ==========     ===========    ===========

Weighted average shares outstanding                           8,044             8,044          8,006          7,948
                                                        ===========       ===========    ===========    ===========
<FN>
See  accompanying  notes  to  consolidated  financial statements.
</FN>
</TABLE>

<PAGE>
<TABLE>

                                             MERIS LABORATORIES, INC.
                                              (DEBTOR-IN-POSSESSION)

                                  CONSOLIDATED STATEMENT OF SHAREHOLDERS' DEFICIT
                                       (In thousands, except per share data)
<CAPTION>
                                                                                   Additional
                                                            Common Stock             Paid-in     Accumulated
                                                      -------------------------
                                                      Shares        Amount           Capital        Deficit            Total
                                                      ----------    -----------     -----------     -----------     -------------

   <S>                                                   <C>       <C>                <C>        <C>              <C>

    Balance at December 31, 1994                          7,901     $    36,981        $  826     $   (12,168)     $   25,639

    Issuance of common stock for option exercises
        and employee stock purchase plan
                                                             81             155           -               -               155
 
    Net loss                                                -               -             -           (14,162)        (14,162)
                                                      ---------     -----------        ------     -----------      ----------

    Balance at December 31, 1995                          7,982          37,136           826         (26,330)         11,632

    Issuance of common stock for option exercises
        and employee stock purchase plan
                                                             62              35           -               -                35

    Net loss                                                -               -             -           (25,832)        (25,832)
                                                      ---------     -----------        ------     -----------      ----------

    Balance at December 31, 1996                          8,044          37,171           826         (52,162)        (14,165)

    Net loss                                                -               -             -           (23,749)        (23,749)
                                                      ---------     -----------        ------     -----------      ----------

    Balance at December 31, 1997                          8,044          37,171           826         (75,911)        (37,914)

    Net loss (unaudited)                                    -               -             -            (8,605)         (8,605)
                                                      ---------     -----------        ------     -----------      ----------

    Balance at September 30, 1998 (unaudited)             8,044     $    37,171        $  826     $   (84,516)     $  (46,519)
                                                      =========     ===========        ======     ===========      ==========
<FN>
See accompanying notes to consolidated  financial statements.
</FN>
</TABLE>

<PAGE>
<TABLE>
                               
                                                 MERIS LABORATORIES, INC.
                                                  (DEBTOR-IN-POSSESSION)

                                           CONSOLIDATED STATEMENT OF CASH FLOWS
                                                      (In thousands)
<CAPTION>
                                                           Nine months ended
                                                             September 30                      Year ended December 31
                                                                                    ---------------------------------------------
                                                                 1 9 9 8             1 9 9 7          1 9 9 6           1 9 9 5
                                                             -----------------      ----------       ----------        ----------
                                                                (UNAUDITED)
<S>                                                            <C>                <C>              <C>               <C>
Operations:
     Net loss                                                   $   (8,605)        $   (23,749)     $   (25,832)      $   (14,162)
     Items not requiring the current use of cash:
         Depreciation and amortization                                 -                 2,240            3,302             4,429
         Amortization of debt discount and issue costs                 -                   446              531               414
         Provision for doubtful accounts                               -                   -                -               3,827
         Provision for litigation and investigation charges            -                   -              3,282             4,357
         Write-down of intangible assets                               -                 1,720            7,552             3,300
         Write-down of property and equipment                          -                 1,982              -               1,272
                                                                                                                     -
         Gain on sale of property and equipment                        -                   (13)             (71)              -
         Compensation expense related to loan forgiveness,
              charge for unrealizable note receivable, and
              discounted stock options                                 -                   -                -                 700
         Changes in items affecting operations:
              Restricted cash                                          (57)                (14)            (380)              546
              Accounts receivable                                      780                 521            6,584            (4,493)
              Income tax refund receivable                             -                    -               384               -
              Supplies inventory                                        66                 (28)             238               (60)
              Prepaid expenses and other current assets                471                (404)            (447)              152
              Other assets                                             -                   175              (97)              (36)
              Accounts payable                                         -                 1,359              963             1,401
              Accrued expenses                                         870                 384             (159)              233
              Accrued litigation and investigation charges            (196)             (2,161)            (779)           (1,374)
                                                                ----------         -----------      -----------       -----------
              Cash provided by (used in) operating activities       (6,671)            (17,542)          (4,929)              506
                                                                ----------         -----------      -----------       -----------

Investments:
     Cash expenditures for customer lists and other assets
         related to acquisitions                                       -                   -               (920)           (2,525)
     Proceeds from notes receivable                                    -                   160              104               -
     Purchase of property and equipment                                (21)             (1,999)            (334)             (684)
     Proceeds from sale of property and equipment                      -                    13               99                60
                                                                ----------         -----------      -----------       -----------
              Cash used for investing activities                       (21)             (1,826)          (1,051)           (3,149)
                                                                ----------         -----------      -----------       -----------

Financing:
     Issuance of common stock, net                                     -                   -                 35               155
     Proceeds from bank borrowings                                   6,554              19,707            5,510             2,000
     Payments on bank borrowings                                       -                   -                -                (343)
     Principal payments on capital leases                             (190)               (290)            (503)             (527)
     Reduction in distribution payable to related parties              -                   -                -                (267)
                                                                ----------         -----------      -----------       -----------
              Cash provided by financing activities                  6,364              19,417            5,042             1,018
                                                                ----------         -----------      -----------       -----------

Increase (decrease) in cash and cash equivalents                      (328)                 49             (938)           (1,625)
Cash and cash equivalents at beginning of period                       601                 552            1,490             3,115
                                                                ----------         -----------      -----------       -----------
Cash and cash equivalents at end of period                      $      273         $       601      $       552       $     1,490
                                                                ==========        -===========      ===========       ===========
<FN>
See accompanying notes to consolidated  financial statements.
</FN>
</TABLE>

<PAGE>
<TABLE>

                                                 MERIS LABORATORIES, INC.
                                                  (DEBTOR-IN-POSSESSION)

                                           CONSOLIDATED STATEMENT OF CASH FLOWS
                                                      (In thousands)
<CAPTION>
                                                            Nine months ended
                                                             September 30                      Year ended December 31
                                                                                    ---------------------------------------------
                                                                 1 9 9 8             1 9 9 7          1 9 9 6           1 9 9 5
                                                             -----------------      ----------       ----------        ----------
                                                               (UNAUDITED)
<S>                                                            <C>                <C>              <C>               <C>
Supplemental disclosure of cash flow information:
     Interest paid - capital leases                             $       12         $        28      $        35       $        41
                                                                ==========         ===========      ===========       ===========
     Interest paid - borrowing                                  $      -           $       -        $       451       $     1,855
                                                                ==========         ===========      ===========       ===========
     Income taxes paid                                          $      -           $       -        $       -         $       114
                                                                ==========         ===========      ===========       ===========

Supplemental disclosure of non-cash investing and financing activities:

     Capital lease obligations incurred for acquisition of
         property and equipment                                 $      -           $       219      $       247       $       198
                                                                ==========         ===========      ===========       ===========
     Reduction in consulting agreements related to
         acquisition                                            $      -           $       -        $       -         $       273
                                                                ==========         ===========      ===========       ===========
     Accrued transaction costs related to acquisitions          $      -           $       -        $       -         $       290
                                                                ==========         ===========      ===========       ===========
<FN>
See accompanying notes to consolidated  financial
statements.
</FN>
</TABLE>

<PAGE>

                            MERIS LABORATORIES, INC.
                             (DEBTOR-IN-POSSESSION)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1 - Organization:

         Meris Laboratories, Inc. (the "Company") was incorporated in California
on November 14, 1990 to effect the  reorganization of Meris  Laboratories,  Ltd.
Bay  Area,  a  California   limited   partnership  (the   "Partnership").   This
reorganization  of entities  under common  control has been accounted for on the
historical cost basis. The consolidated  financial statements of the Company and
its  subsidiary,  Meris,  Inc.,  include  the  financial  position,  results  of
operations  and cash  flows  for the  Company.  The  Company  provides  complete
out-patient laboratory services and operates in only one industry segment within
the State of California.

         Petition for relief under Chapter 11

         On November 18, 1997 the Company  ("Debtor") filed a voluntary petition
for relief under  Chapter 11 of Title 11 of the United States Code in the United
States  Bankruptcy Court for the Central  District of California.  Under Chapter
11, certain  claims  against the Debtor in existence  prior to the filing of the
petition  for relief  under the  federal  bankruptcy  laws are stayed  while the
Debtor continues business  operations as  Debtor-in-possession.  Such claims are
reflected  in the  December 31, 1997 and  September  30, 1998 balance  sheets as
"liabilities subject to compromise."

         On September 16, 1998 the Company  signed a definitive  agreement  with
Unilab  Corporation  ("Unilab") whereby the Company would sell substantially all
of its assets to Unilab.  The  agreement was approved on October 28, 1998 by the
United States  Bankruptcy  Court in Los Angeles,  California  (see Note 11). The
Company  consummated the sale on November 5, 1998 and ceased operations.  A loss
of $1,982,000 has been provided in the consolidated financial statements for the
year ended December 31, 1997, to write-down  such assets to their net realizable
values.  The Company plans to file a plan of reorganization  under which it will
distribute  all of the net proceeds of the sale and any remaining  assets to its
creditors,  subject only to the satisfaction of certain administrative and other
priority liabilities.

NOTE 2 - Summary of significant accounting policies:

         Principles of consolidation

         The  consolidated  financial  statements  include  the  accounts of the
Company and Meris, Inc. All significant  intercompany  accounts and transactions
have been eliminated.

         Basis of presentation

         The  consolidated  financial  statements  have been prepared on a going
concern basis except that, for the period from November 18, 1997 to December 31,
1997,  interest  totaling   approximately  $800,000  has  not  been  accrued  on
indebtedness  outstanding as of November 18, 1997, the date on which the Company
filed a voluntary  petition for relief under  Chapter 11 of the U.S.  Bankruptcy
Code. As discussed in the second and third paragraphs of Note 1, the Company has
sold substantially all of its assets and ceased operations,  and intends to file
a plan of  reorganization  under which it will  liquidate and distribute the net
proceeds  of the sale  and any  remaining  assets.  The  consolidated  financial
statements  do not  reflect  any  adjustments  that  may  be  required  for  the
disposition of the remaining assets in amounts different from those reflected in
the  consolidated  financial  statements  or in amounts  which  creditors may be
required to accept in settlement of obligations due them by the Company.

         Use of estimates

         The  preparation of financial  statements  requires  management to make
estimates  and  assumptions  that affect the amounts  reported in the  financial
statements  and  accompanying  notes.  Actual  results  could  differ from those
estimates.

         Revenue recognition

         Revenues  are  recognized  upon  performance  of  laboratory  services.
Revenues are based on amounts billed or billable for services  rendered,  net of
price adjustments made with third-party payors by contract or otherwise. Certain
laboratory  services  are  provided  pursuant to managed  care  contracts  which
provide for the payment of capitated fees rather than  individual fees for tests
actually  performed.  The  Company  periodically  evaluates  such  contracts  to
ascertain their overall  profitability.  Such evaluations  include both expected
capitated fees and identifiable referral revenues.  Contract losses, if any, are
recognized  as soon as they are  identified.  No such  accruals were provided at
December 31, 1997 and 1996.

         Laboratory services billed to Medicare comprised  approximately  22.5%,
22.9%,  and 19.1% of net revenues for the years ended  December 31, 1997,  1996,
and 1995,  respectively,  and  approximately  29.3% and 20.8% of outstanding net
accounts receivable at December 31, 1997 and 1996, respectively.

         Expense recognition

         All costs are expensed as incurred.

         Financial instruments

         Financial  instruments  which subject the Company to  concentration  of
credit risk consist  primarily of accounts  receivable.  The primary  payors are
individual patients,  government agencies,  insurance companies and, to a lesser
extent,  physician  clients.  The Company  provides an  allowance  for  doubtful
accounts based on historical  experience and current factors. The carrying value
of all other financial instruments is not presently determinable, since they may
be subject to compromise upon liquidation of the company.

         Cash equivalents

         The Company considers all highly liquid  investments  purchased with an
original maturity of three months or less to be cash equivalents.

         Concentration of credit risk

         The Company  places its cash and temporary cash  investments  with high
credit quality institutions.  At December 31, 1997 and throughout the year, such
investments were in excess of FDIC insurance limits.

         Restricted cash

         The  Company  purchased  a  certificate  of  deposit  in the  amount of
$1,585,000  representing  the full amount to satisfy the  Company's  obligations
owing to a former executive pursuant to and in connection with a promissory note
dated October 28, 1992. The Company is holding the balance in a separate account
pending the  outcome of the  litigation.  The  interest  on the  certificate  of
deposit is also being held in a restricted account.

         The Company deposited $379,000 to perfect its appeal in a legal action,
in which the courts awarded judgments  totaling $253,000 against the Company and
in favor of the former employee.

         Supplies inventory

         Supplies  inventory  is stated at the  lower of cost,  determined  on a
first-in, first-out basis, or market.

         Assets held for sale

         On October 28, 1998, the Company sold  substantially all of its assets,
including  accounts  receivable,  property and equipment,  and intangible assets
(see Note 1). As a result,  the  Company has  reported  such assets at their net
realizable values under the caption, "Assets held for sale" at December 31, 1997
and September 30, 1998.  The loss on the sale of such assets has been  reflected
in the results of operations for the year ended December 31, 1997.

         A summary of assets held for sale is as follows:

                                                             December 31
                                                               1 9 9 7
                                                           ------------------
                                                             (in thousands)

         Accounts receivable, net                               $     3,252
         Supplies inventory                                             473
         Prepaid expenses and other current assets                       25
         Property and equipment, net:
              Laboratory equipment                                      689
              Furniture, fixtures and equipment                          12
              Vehicles                                                  219
              Leasehold improvements                                  1,883
         Intangibles, net:
              Covenant not-to-compete                                   283
              Customer lists                                         11,612
              Goodwill                                                  462
                                                                 -----------
                                                                     18,910
         Less - valuation reserve                                    (1,982)

         Net realizable value of assets held for sale           $    16,928
                                                                 ===========

         Property and equipment

         Property  and  equipment is recorded at cost.  Property and  equipment,
other than leasehold improvements, is depreciated using the straight-line method
over the estimated  useful lives of the assets,  generally  three to five years.
Amortization  of  leasehold  improvements  is computed  using the  straight-line
method  over the shorter of the  remaining  lease term or the  estimated  useful
lives of the  improvements.  The costs of assets sold or retired and the related
accumulated depreciation and amortization are eliminated from the accounts and a
gain or loss is included in operations.

<PAGE>


         Intangible assets

         Intangible  assets are stated at cost and  include  acquisition-related
assets  such  as  customer  lists,   covenants   not-to-compete   and  goodwill.
Amortization of  acquisition-related  assets is computed using the straight-line
method  over the  estimated  useful  lives of the  assets.  Customer  lists  are
amortized over ten to sixteen years. Goodwill is amortized over twenty years.

         Impairment of goodwill and  intangible  assets is measured on the basis
of anticipated  undiscounted cash flows for each asset. Based upon the Company's
analysis,  an impairment  loss of  $1,720,000,  $7,552,000  and  $3,300,000  was
charged to operations  for the years ended  December 31, 1997,  1996,  and 1995,
respectively.

         Debt issuance costs

         Debt issuance  costs are amortized  using the interest  method over the
estimated term of the related debt.

         Income taxes

         A deferred income tax liability or asset,  net of valuation  allowance,
is  established  for  the  expected  future  consequences   resulting  from  the
differences  between the financial  reporting and income tax basis of assets and
liabilities and from net operating loss and tax credit  carryforwards.  Deferred
income tax expense or benefit  represents  the net change during the year in the
deferred income tax liability or asset.

         Loss per share

         In 1997, the Company adopted Statement of Financial Accounting Standard
No. 128,  "Earnings Per Share." This standard  requires that both basic earnings
or loss per share and diluted earnings or loss per share be presented. All prior
period  per  share  amounts  have  been  restated,  following  the new  standard
requirements.  Diluted loss per share excludes the effect of  convertible  debt,
stock options, and warrants (See Notes 4 and 9), because their effect would have
been antidilutive.

         Reclassifications

         Certain   reclassifications  have  been  made  to  the  1995  financial
statements to conform to the 1997 presentation.  Such  reclassifications  had no
effect on previously reported results of operations or retained earnings.



<PAGE>


NOTE 3 - Balance sheet detail:
                                                                 December 31
                                                                     1996
                                                             ------------------
                                                               (in thousands)
         Property and equipment consisted of:
              Laboratory and computer equipment                   $    9,798
              Furniture, fixtures and office equipment                 2,154
              Vehicles                                                 1,249
              Leasehold improvements                                     907
                                                                  ----------
                                                                      14,108
         Less - accumulated depreciation and amortization            (12,549)
                                                                  ----------
                                                                  $    1,559

         Amount relating to capitalized leases, which are
              included in property
              equipment above                                     $      982
         Less - accumulated amortization                                (778)
                                                                   ----------
                                                                  $      204
         Intangibles consisted of:
              Customer lists                                      $    1,720
              Covenants not-to-compete                                21,997
              Goodwill                                                 1,485
              Consulting agreements                                       50
                                                                  ----------
                                                                      25,252
         Less - accumulated amortization                              (9,909)
                                                                   ----------
                                                                  $   15,343
         Other assets consisted of:
              Note receivable                                     $     182
              Deferred debt issuance costs, net                         363
              Other                                                     154
                                                                   ----------
                                                                  $     699

NOTE 4 - Unsecured senior subordinated debt:

         On November 14 and  December 5, 1994,  the Company  completed a private
placement consisting of the sale of $11,000,000 of unsecured  convertible senior
subordinated debentures (the "Debentures").  The Debentures carry a 10% interest
rate and require interest to be paid monthly. In addition, the Debentures mature
three years from the date of issue and are convertible  sixty days from the date
of  issuance,  at the  option  of the  holders,  into  3,055,555  shares  of the
Company's  common  stock at a  conversion  price  based on certain  antidilution
provisions  of the Debenture  agreement.  The Board of Directors has resolved to
reserve an  aggregate  of  3,055,555  shares of the  Company's  common stock for
issuance upon conversion of the  Debentures,  provided that the number of shares
reserved  for  issuance  may be  subject  to change in the event of any  further
adjustment in the conversion price of the Debentures.

         The Company  defaulted on the November 14, 1997 principal payoff of $11
million and is still in default.  The Company has not paid interest  relating to
the subordinated  debt of approximately  $1,705,000 and $735,000 at December 31,
1997 and 1996,  respectively.  The unpaid  interest is  reflected on the balance
sheets as accrued expenses under "liabilities subject to compromise."

         Through December 31, 1997, the Company incurred  $1,021,000  related to
the issuance and  registration  of the Debentures  which is being amortized over
the three-year term of the Debentures. At December 31, 1997, debt issue cost was
fully amortized.

NOTE 5 - Secured borrowings:

         On September 20, 1996 a bank with whom the Company had a line of credit
agreement sold its rights and claims under the agreement to an unrelated  party,
who in turn  assigned  all such rights to an affiliate  of the  unrelated  party
("Lender").

         On November 18, 1996,  the Company  entered into an agreement  with the
Lender (the "Second Amended Agreement") which provided, among other things, that
the Company would repay the Lender  $12,770,874,  on demand, at an interest rate
of 15% per annum. Interest is capitalized and added to the outstanding principal
evidenced by issuance of Payment-In-Kind ("PIK") notes, payable on demand of the
Lender.  The Company  granted a security  interest in  substantially  all of the
assets  of the  Company.  The  proceeds  from the loan  were  used to repay  the
outstanding  balance  under the bank line of credit in the amount of  $8,202,461
and certain  other  obligations,  including a facility  fee to the Lender in the
amount of  $1,242,332.  The  remaining  proceeds  were used for working  capital
purposes.  The Second Amended Agreement calls for an anniversary fee equal to 2%
of the average  balance of the loans  outstanding  during the first year,  a fee
equal to 3% of the average  balance of the loans  outstanding  during the second
year,  and a fee equal to 4% of the  average  balance  of the loans  outstanding
during the third year. In  conjunction  with the Second Amended  Agreement,  the
Company  issued to the  Lender a warrant to  purchase  an  aggregate  of 800,000
shares of common  stock of the  Company  at $0.01 per  share.  The  warrant  was
exercisable immediately and expires on November 18, 2006.

         The Second  Amended  Agreement  allowed the  Company to borrow,  at the
Lender's  sole  discretion,  and not more  frequently  than once  every 28 days,
additional  borrowings  of not less than  $250,000  per  borrowing.  The  Lender
extended twenty one additional  demand notes ("Interim  Funding  Agreements") to
the  Company  during the period  February 3, 1997  through  November  12,  1997,
totaling $13,750,000, with interest accrued thereon at an interest rate of 24.9%
per annum.

         On November 18, 1997, the Company filed a voluntary petition for relief
under Chapter 11 of Title 11 of the United States  Bankruptcy  Code. The Company
owed the Lender pre-petition obligations in the aggregate amount of $32,273,665,
consisting  of  $31,891,132  of principal  and interest  (including  capitalized
interest) related to the Second Amended Agreement, and $382,534 for unreimbursed
costs, expenses,  fees and other charges the Company owed to the Lender pursuant
to the Second  Amended  Agreement  dated  November  18,  1996 and the twenty one
Interim Funding Agreements.

         On November  18,  1997,  the  Company and the Lender  signed a Loan and
Security  Agreement  ("DIP Loan  Agreement")  whereby  the Lender  provided  the
Company with a $5,000,000 credit facility to provide operating capital while the
Company  continued as  Debtor-in-possession.  The DIP Loan Agreement allowed the
Company to borrow minimum increments of $250,000,  not more frequently than once
every 14 days,  at an  interest  rate of 12% per annum.  The DIP Loan  Agreement
required a nonrefundable  commitment fee of $100,000,  payable from the proceeds
of the loans, and expired June 3, 1998,  which was  subsequently  extended until
December 31, 1998 (see Note 11).

         As  the  debt  owed  to  the  Lender  by  the   Company   is   impaired
(undersecured)  under  the  plan of  liquidation  (see  Note  11),  the  debt is
reflected on the balance  sheets at December 31, 1997 and  September 30, 1998 as
"liabilities subject to compromise."


<PAGE>


NOTE 6 - Lease commitments:

         The Company leases various  laboratories,  Patient  Service Centers and
office facilities under  non-cancelable  operating lease agreements which expire
at various times through the year 2002. The leases generally require the Company
to pay property taxes, maintenance expense and certain insurance. Certain of the
lease  agreements  require  escalation of the minimum  rental based upon factors
defined in the leases.  Total rent expense under  operating  leases  amounted to
approximately  $3,090,000,  $2,655,000  and  $2,686,000 in 1997,  1996 and 1995,
respectively.

         Minimum  future lease payments under  non-cancelable  operating  leases
subject to compromise are as follows:

         Fiscal year

         1998           $       699,600
         1999                   699,600
         2000                   699,600
         2001                   699,600
         2002                   233,200
                        ---------------
                        $     3,031,600

NOTE 7 - Transactions with related parties:

         One  member  of  the  Board  of  Directors  of  the  Company   received
approximately $86,000 and $154,000 for consulting and legal services rendered to
the Company during 1997 and 1996, respectively.

NOTE 8 - Income taxes:

         The provision for income taxes is as follows:

                                                Year ended December 31
                                     ------------------------------------------
                                        1 9 9 7        1 9 9 6        1 9 9 5
                                     ------------    ----------     -----------

         Current tax expense           $   -          $     -        $    -

         Deferred tax expense              -                -             -
                                     ------------    -----------     ----------

              Total                    $   -          $     -        $    -
                                     ============    ===========     ==========



<PAGE>


         The net deferred income tax asset comprises:

                                                           December 31
                                               ------------------------------
                                                    1 9 9 7            1 9 9 6
                                                 ------------        ----------

    Net operating loss carryforwards                     $ 20,141    $  13,026
    Alternative minimum tax credit carryforwards              122          122
    Temporarily nondeductible reserves and allowances       1,293        1,963
    Bad debt reserves                                       4,412        3,443
    Loss on sale of assets                                    813           -
    Depreciation and amortization                           2,234        2,355
                                                      -----------   -----------
                                                           29,015       20,909
    Valuation allowance                                   (29,015)     (20,909)
                                                      -----------   -----------
                                                         $    -      $     -
                                                      ===========   ===========

Changes in the  valuation  allowance  for the years ended  December 31, 1997 and
1996 are due to  uncertainty  regarding  the ultimate  realization  of the gross
deferred tax assets based on the Company's recent operating results. Differences
between the Company's benefit for income taxes and that computed by applying the
federal  statutory rate applied to the Company's loss before income taxes are as
follows:

                                                          December 31
                                                   ----------------------------
                                                      1997      1996     1995
                                                     -------  -------   ------

    Federal statutory rate                           (35.0)%   (35.0)%  (35.0)%
    State income taxes, net of federal tax benefit    (6.5)%    (6.5)%   (6.5)%
    Deferred tax assets not recognized                41.5%     41.5%     41.5%
                                                      -----     -----    -----
                                                       0.0%      0.0%      0.0%
                                                     ======     ======   ======

         At December  31,  1997 and 1996,  the Company had federal and state net
operating  loss  carryforwards  of  approximately  $82 million and $54  million,
respectively. The federal and state net operating losses will begin to expire in
the years ending December 31, 2003 and 1999, respectively.

NOTE 9 - Employee benefit plans:

         1991 Employee Stock Purchase Plan:

         In May 1991, the Company  adopted the 1991 Employee Stock Purchase Plan
(the  "Purchase  Plan")  under which  225,000  shares of common  stock have been
reserved for  issuance.  The Purchase  Plan  provides  for  sequential  offering
periods, generally of six months. At the end of each offering period, shares may
be purchased by  participants at 85% of the market value at the beginning or end
of the offering period. Shares are to be purchased from payroll deductions which
are  limited  to 10% of base  compensation.  A total of 49,841  shares of common
stock were issued  under the  Purchase  Plan during the year ended  December 31,
1996 and no shares of common stock were issued in 1997.

         Amended and restated 1991 Stock Option Plan:

         In February 1991,  the Company  adopted the 1991 Stock Option Plan (the
"Option Plan"),  which was amended and restated.  The Option Plan, which expires
in February 2001,  provides for incentive as well as nonstatutory  stock options
to be  granted  to  employees  and  consultants  of the  Company.  The  Board of
Directors may terminate the Option Plan at any time at its discretion.

         A Committee of the Board  determines the terms of options granted under
the Option  Plan.  Options  granted  generally  vest over four years and will be
adjusted for certain changes in capitalization of the Company. In addition,  the
outstanding  options issued under the Option Plan will terminate within a period
set by the Board after termination of employment.

         The Option Plan also  provides for  automatic  grants of  non-qualified
stock  options to directors  who are not  employees of the Company (the "Outside
Directors").  Under these provisions,  as amended by the Board in November 1992,
each Outside  Director on August 20, 1991 received an option to purchase  10,000
shares of common stock. Additionally, each Outside Director on November 23, 1992
(other than Outside Directors  receiving options on August 20, 1991) received on
such date an option to  purchase  10,000  shares of common  stock,  and each new
Outside  Director  receives an option to purchase  10,000  share upon his or her
election or  appointment  to the Board.  In addition,  beginning  with the fifth
annual meeting of shareholders  following the initial 10,000 share option grant,
each Outside  Director  will  receive an option to purchase  2,500 shares on the
date of each annual meeting at which he or she is elected the Board. All options
granted to Outside  Directors  will have an exercise  price equal to 100% of the
fair  market  value at the date of grant and will vest  ratably  over four years
commencing on the first anniversary of the date of grant.

         Options under the Option Plan are generally  granted at prices  ranging
from 85% to 110% of the fair  market  value of the  stock at the date of  grant.
Except as discussed  below, no options have been granted at exercise prices less
than 100% of such fair market value at the date of grant.  In December  1991, an
Executive was granted,  in connection with his employment  with the Company,  an
option to purchase  150,000 shares of common stock at an exercise price of $8.00
per share.  The last reported  sale price of the Company's  common stock on such
date was $14.00 per share. In October 1993, the Executive irrevocably terminated
the option to the extent of 100,000  unvested shares.  Accordingly,  the Company
ceased recognizing  compensation associated with this option effective September
30, 1993. There is no commitment to grant the Executive any additional  options.
The Company  recorded  $122,000 of  compensation  expense  during the year ended
December 31, 1993 related to this stock option grant.

         The Company  applies the  provisions  of  Accounting  Principles  Board
Opinion No. 25,  "Accounting  for Stock Issued to Employees"  ("APB 25") for its
stock option plan. Accordingly, no compensation cost has been recognized for the
plan for the years ended December 31, 1997, 1996, and 1995. Certain  information
related to the Company's stock option plan was not available for the years ended
December 31, 1997 and 1996.  Consequently,  the effect of the Company's adoption
of Financial  Accounting  Standards  Board  Statement No. 123,  "Accounting  for
Stock-Based  Compensation"  ("SFAS No. 123"), was not calculated.  However,  the
increase in net loss would not be material to the financial statements.



<PAGE>


         A summary of the status of the  Company's  stock option plan as of
December 31, 1997 and 1996 and changes  during the years then ended is
presented below:

<TABLE>
<CAPTION>
                                                         1997                                    1996
                                          ------------------------------------     ----------------------------------

                                                                 Range of                               Range of
                                            Number of            Exercise           Number of           Exercise
                                              Shares              Prices              Shares             Prices
                                          ---------------     ----------------     -------------    -----------------
<S>                                          <C>               <C>                   <C>            <C>
         Outstanding at beginning of
              year                            2,092,089         $.73-$4.38            1,450,579      $  .73-$4.38
         Granted                                                                      1,211,709      $1.00-$1.50
         Exercised                                                                      (12,150)
         Canceled or expired                   (389,176)                  -            (558,049)                -
                                            -----------         -------------       -----------      ------------
         Outstanding at end of year           1,702,913         $.73-$4.38            2,092,089      $  .73-$4.38
                                            ===========         ==========          ===========      ============
</TABLE>

         Employee savings and retirement plan

         In January  1992,  the Company  adopted the 401(k)  Retirement  Plan of
Meris Laboratories, Inc. (the "Plan"), a savings and investment plan, as allowed
under Section 401(k) of the Internal Revenue Code (the "Code").  Under the terms
of the Plan,  eligible  participants  may contribute up to 15% of their eligible
earnings to the Plan, not to exceed the amount allowed under the Code. Under the
Plan  Agreement,  the Company may make  contributions  at the  discretion of the
Board of Directors.  As of December 31, 1997, no contributions have been made to
the Plan by the Company.

NOTE 10 - Contingencies:

         The Company and its  directors  and former  officers are  defendants in
several lawsuits.  Plaintiffs in the lawsuits and their legal counsel have filed
bankruptcy  claims in excess of $23 million.  At December 31, 1997,  the Company
has accrued  $515,000  in costs  associated  with such  lawsuits.  The  ultimate
resolution   of  the  lawsuits   cannot  be  determined  at  the  present  time;
accordingly,   the  consolidated   financial   statements  do  not  include  any
adjustments,  beyond the accrual noted above, that might result from the outcome
of the lawsuits.

         In February 1997, the Company entered into a settlement  agreement with
the U.S.  Department  of Justice  and  Department  of Health and Human  Services
related to certain Medicare and other billing practices.  Under the terms of the
settlement,  the Company agreed to pay $4.25 million in monthly  installments of
$100,000.  This  obligation  is reflected in the  consolidated  balance sheet as
accrued  Medicare  settlement,  under  liabilities  subject to  compromise.  The
Company has made no payments since it filed for bankruptcy.

NOTE 11 - Subsequent events:

         Amendment to DIP Loan Agreement

         On November 23, 1998,  the Company and the Lender  amended the terms of
the DIP Loan Agreement to extend the terms of the agreement from June 3, 1998 to
December 31, 1998 and to increase  the amount of funds  available to the Company
from $5 million to $9.5 million.


<PAGE>


         Plan of liquidation

         On September 16, 1998, the Company  signed a definitive  agreement with
Unilab  whereby  Unilab  would  acquire  substantially  all of the assets of the
Company.  The  purchase  price of  $16,928,000  consisted of the  following:  an
eight-year convertible  subordinated note in the amount of $14 million,  bearing
interest at a rate of 7.5% per annum,  with a $3.00 per share  conversion  price
plus $2,520,000 in cash payable in seventy-two equal monthly  installments;  and
the  assumption of certain  liabilities  totaling  approximately  $408,000.  The
agreement was approved on October 28, 1998 by the U.S.  Bankruptcy  Court in Los
Angeles,  California,  and Unilab  took  possession  of the  acquired  assets on
November 5, 1998.

         The Company  intends to file a plan of liquidation  under which it will
distribute all of the net proceeds of the sale to its creditors,  subject to the
satisfaction of certain administrative and other priority liabilities.




               UNAUDITED PRO FORMA FINANCIAL INFORMATION OF UNILAB


The Unaudited Pro Forma Statements of Operations of Unilab Corporation ("Unilab"
or the  "Company")  for the nine months  ended  September  30, 1998 and the year
ended  December 31, 1997 and the  Unaudited Pro Forma Balance Sheet of Unilab at
September 30, 1998 which are set forth below,  give effect to the acquisition of
Meris  Laboratories,  Inc.  ("Meris") based upon the assumptions set forth below
and in  the  notes  to  such  statements.  The  unaudited  pro  forma  financial
information  assumes that the acquisition of Meris was completed January 1, 1998
and January 1, 1997 for the Unaudited Pro Forma Statements of Operations for the
nine  months  ended  September  30,  1998 and the year ended  December  31, 1997
respectively,  and  September 30, 1998 for the Unaudited Pro forma Balance Sheet
at September 30, 1998. The unaudited pro forma financial  information  presented
is based upon the respective historical financial statements of Unilab and Meris
and should be read in  conjunction  with such  financial  statements and related
notes  thereto.  Unilab  believes  that the  accompanying  unaudited  pro  forma
financial  information contains all adjustments  necessary to fairly present the
results of operations of Unilab for the nine months ended September 30, 1998 and
the year ended  December  31,  1997 and the  financial  position of Unilab as of
September  30, 1998 as if , in the case of (i) the  Unaudited  Pro Forma Balance
Sheet,  the  acquisition of Meris had occurred as of September 30, 1998 and (ii)
the  Unaudited  Pro Forma  Statements  of  Operations  for the nine months ended
September 30, 1998 and the year ended December 31, 1997 as if the acquisition of
Meris was completed  January 1, 1998 and January 1, 1997  respectively.  The pro
forma financial  information  presented does not purport to be indicative of the
financial  position or operating  results which would have been achieved had the
acquisition  of Meris  taken  place at the dates  indicated  and  should  not be
construed  as  representative  of  Unilab's  financial  position  or  results of
operations for any future period or date.



<PAGE>

<TABLE>

                                     Unilab
                        Unaudited Pro Forma Balance Sheet
                               September 30, 1998
                                 (in thousands)
<CAPTION>

                                                           Acquisition              Pro Forma                  Pro Forma
ASSETS                                       Unilab         of Meris               Adjustments                  Unilab
                                         --------------- ---------------- --- ----------------------- ---- ------------------
<S>                                           <C>                <C>                 <C>                      <C>          
Current Assets:
Cash and cash equivalents                      $ 19,901                                                         $19,901
Accounts receivable, net                         40,395            3,252  (a)                                    43,647
Inventory or supplies                             2,776              473  (a)               (298)(c)              2,951
Prepaid expenses and other current                                                                               
     assets                                       1,581               25  (a)                                     1,606
- ---------------------------------------- --------------- ---------------- --- ----------------------- ---- ------------------
Total current assets                             64,653            3,750                    (298)                68,105
Property and equipment, net                      11,510            2,803  (a)             (2,630)(c)             11,683
Goodwill, net                                    42,750            9,990                  4,352                  57,092      (d)
Other intangible assets, net                      2,284              283  (a)                                     2,567
Other assets                                      6,446                                                           6,446
- ----------------------------------------
                                         =============== ================ === ======================= ==== ==================
                                               $127,643          $16,826                 $1,424                $145,893
                                         =============== ================ === ======================= ==== ==================

LIABILITIES AND SHAREHOLDERS' EQUITY

Current Liabilities:
Current portion of long-term debt             $   1,344                                                           $1,344
Accounts payable and accrued                                                                                      
     liabilities                                 15,560              420  (b)            1,424  (c)               17,404
Accrued payroll and benefits                      7,791              306  (a)                                      8,097
- ---------------------------------------- --------------- ---------------- --- ---------------------- ----- -------------------
Total current liabilities                        24,695              726                 1,424                    26,845

Long-term debt, net of current portion          123,450           14,000  (b)                                    137,450
Other liabilities                                 2,043            2,100  (b)                                      4,143
- ---------------------------------------- --------------- ---------------- --- ---------------------- ----- -------------------
                                                150,188           16,826                 1,424                   168,438

Shareholder's Equity (Deficit)
Convertible preferred stock                           4                                                                4
Common stock                                        407                                                              407
Additional paid-in capital                      228,308                                                          228,308
Accumulated deficit                             (251,264)                                                        (251,264)
- ---------------------------------------- --------------- ---------------- --- ---------------------- ----- -------------------
Total shareholder's equity (deficit)           (  22,545)                                                       (  22,545)
- ----------------------------------------
                                         =============== ================ === ====================== ===== ===================
                                               $127,643         $ 16,826              $  1,424                 $ 145,893
                                         =============== ================ === ====================== ===== ===================

<FN>
                 See Notes to Unaudited Pro Forma Balance Sheet
</FN>
</TABLE>
<PAGE>

                                     Unilab
                   Notes to Unaudited Pro Forma Balance Sheet

(a)  On September 16, 1998, Unilab and Meris signed an asset purchase  agreement
     whereby  Unilab  acquired  substantially  all of the  assets of Meris.  The
     agreement was approved on October 28, 1998 by the United States  Bankruptcy
     Court  in Los  Angeles,  California,  and  Unilab  took  possession  of the
     acquired net assets on November 5, 1998. This  adjustment  reflects the net
     assets acquired by Unilab,  consisting  principally of accounts receivable,
     inventory of supplies,  security deposits  primarily on leased  facilities,
     fixed assets,  covenants  not-to-compete and vacation pay liability, at the
     value recorded in Meris' accounting records at September 30, 1998.

(b)  Adjustment  to reflect the  purchase  price for the  acquired net assets of
     Meris  noted  in  (a)  above,  consisting  of  a  convertible  subordinated
     promissory note in the principal amount of $14.0 million,  bearing interest
     on the outstanding  balance at a rate of 7.5% per annum,  and $2.52 million
     in cash payable in seventy-two equal monthly installments.

(c)  Adjustment to reflect the  disposition  of fixed  assets,  the writedown of
     unusable supplies  inventory,  and an accrual of approximately $1.4 million
     in costs (primarily severance, disposition of operating leases, and payment
     of  attorney  fees and other  closing  costs)  expected  to be  incurred in
     connection with the integration of the acquired Meris operations with those
     of Unilab and the closing of the asset purchase agreement.

(d)  The  acquisition  of the net  assets  of Meris is  expected  to  result  in
     approximately $14.3 million of additional goodwill.


<PAGE>
<TABLE>

                                     Unilab
                   Unaudited Pro Forma Statement of Operations
                      Nine Months Ended September 30, 1998
                    (in thousands, except per share amounts)
<CAPTION>
                                                                    Acquisition of      Pro Forma                Pro Forma
                                                       Unilab           Meris          Adjustments                Unilab
                                                   --------------- ----------------- ----------------- ------ ----------------
<S>                                                     <C>               <C>             <C>                   <C> 
Revenue                                                  $162,046          $ 19,727                              $181,773
- -------------------------------------------------- --------------- ----------------- ----------------- ------ ----------------
Direct Laboratory and Field Expenses:
     Salaries, wages and benefits                          49,645             6,763         (2,409)(a)             53,999
     Supplies                                              22,585             3,267           (601)(a)             25,251
     Other operating expenses                              39,404             9,597         (3,513)(a)             45,488
- -------------------------------------------------- --------------- ----------------- ----------------- ------ ----------------
                                                          111,634            19,627         (6,523)               124,738
Amortization and depreciation                               5,774                 -           580  (a)              6,354
Selling, general and administrative expenses               24,990             8,351         (4,758)(a)             28,583
- -------------------------------------------------- --------------- ----------------- ----------------- ------ ----------------
Total operating expenses                                  142,398            27,978                               159,675
- -------------------------------------------------- --------------- ----------------- ----------------- ------ ----------------

Operating income (loss)                                    19,648             (8,251)                              22,098
Other expenses:
Interest, net                                              10,068               354           434  (b)             10,856
- -------------------------------------------------- --------------- ----------------- ----------------- ------ ----------------
Income (loss) before income taxes                           9,580             (8,605)                              11,242
Tax provision                                                   -                 -                                     -
- -------------------------------------------------- --------------- ----------------- ----------------- ------ ----------------
Net income (loss)                                        $  9,580          $  (8,605)                            $ 11,242

Preferred stock dividends                                      99                 -                                    99
================================================== =============== ================= ================= ====== ================
Net income (loss) available to common
     stockholders                                        $  9,481          $  (8,605)                             $11,143
================================================== =============== ================= ================= ====== ================

Earnings per share:
Basic                                                       $0.22                                                   $0.27
Diluted                                                     $0.22                                                   $0.26

<FN>
            See Notes to Unaudited Pro Forma Statement of Operations
</FN>
</TABLE>

<PAGE>
<TABLE>

                                     Unilab
                   Unaudited Pro Forma Statement of Operations
                          Year Ended December 31, 1997
                    (in thousands, except per share amounts)
<CAPTION>


                                                                   Acquisition         Pro Forma               Pro Forma
                                                     Unilab         of Meris          Adjustments               Unilab
                                                  ------------- ------------------ ------------------ ----- ----------------
<S>                                                  <C>              <C>              <C>                   <C>
Revenue                                               $214,001          $ 29,903                              $243,904
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------
Direct Laboratory and Field Expenses:
     Salaries, wages and benefits                       69,094            12,507        (4,929)  (a)            76,672
     Supplies                                           29,858             4,946        (1,024)  (a)            33,780
     Other operating expenses                           56,990            13,728        (6,682)  (a)            64,036
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------
                                                       155,942            31,181       (12,635)                174,488
Amortization and depreciation                            8,885             2,240        (1,467)  (a)             9,658
Selling, general and administrative expenses            34,570            15,785       (11,574)  (a)            38,781
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------
Total operating expenses                               199,397            49,206                               222,927
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------

Operating income (loss)                                 14,604            (19,303)                              20,977
Other expenses:
Interest, net                                           14,068             4,446        (3,396)  (b)            15,118
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------
Income (loss) before income taxes                          536            (23,749)                               5,859
Tax provision                                                -                 -                                     -
- ------------------------------------------------- ------------- ------------------ ------------------ ----- ----------------
Net income (loss)                                     $    536           $(23,749)                            $  5,859

Preferred stock dividends                                  138                 -                                   138
================================================= ============= ================== ================== ===== ================
Net income (loss) available to common
     stockholders                                      $   398           $(23,749)                            $  5,721
================================================= ============= ================== ================== ===== ================

Earnings per share:
Basic                                                    $0.01                                                    $0.14
Diluted                                                  $0.01                                                    $0.14
<FN>
            See Notes to Unaudited Pro Forma Statement of Operations
</FN>
</TABLE>

<PAGE>


                                     Unilab
              Notes to Unaudited Pro Forma Statement of Operations


(a)  Adjustment to reflect the expected efficiencies or synergy savings expected
     to be obtained in connection with the integration of the acquired Meris
     operations with those of Unilab, primarily related to the disposition of
     fixed assets and operating leases and the reduction in employee headcount
     and closure of facilities due to the overlap of operations between Unilab
     and Meris. The integration of operations is expected to be completed
     within two months after the acquisition date (such acquisition date is
     assumed to be January 1, 1997, for the pro forma statements of operations
     for the year ended December 31, 1997, and January 1, 1998, for the pro
     forma statement of operations for the nine months ended September 30,
     1998), after which time most of the efficiencies/synergy savings are
     expected to be achieved (certain sales and billing costs, which are
     estimated to approximate $0.5 million, are expected to remain for
     approximately four additional months to assist in the collection of Meris
     accounts receivable and transition of client accounts.) During the
     anticipated two month integration period, the Company expects to incur
     approximately a $1.2 million operating loss on the acquired operations,
     and such operating loss has been included in this pro forma adjustment.

(b)  Adjustment to reflect the change in interest  expense  associated  with the
     additional  interest  expense  from  the  issuance  of  the  $14.0  million
     convertible  subordinated note, bearing interest on the outstanding balance
     at a rate of 7.5% per annum,  in connection  with the  acquisition of Meris
     and the elimination of the Meris historical interest expense.





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