PSICOR INC
SC 14D9/A, 1995-12-18
MISC HEALTH & ALLIED SERVICES, NEC
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                 Amendment No. 1
                                       To
                                 SCHEDULE 14D-9

                      SOLICITATION/RECOMMENDATION STATEMENT
                       PURSUANT TO SECTION 14(d)(4) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

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

                                  PSICOR, INC.
                            (Name of Subject Company)

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

                                  PSICOR, INC.
                      (Name of Person(s) Filing Statement)

                           Common Stock, no par value
                         (Title of Class of Securities)

                                   744901 109
                      (CUSIP Number of Class of Securities)

                           Denise E. Botticelli, Esq.
                                 General Counsel
                                  PSICOR, INC.
                            16818 Via Del Campo Court
                              San Diego, CA  92127
                                 (619) 485-5599
                  (Name, address and telephone number of person
               authorized to receive notice and communications on
                    behalf of the person(s) filing statement)


                                 With a copy to:

                            Fredrick M. Miller, Esq.
                               Dykema Gossett PLLC
                             400 Renaissance Center
                             Detroit, Michigan 48243
                                 (313) 568-6975

<PAGE>

         The Schedule 14D-9 filed with the Securities and Exchange Commission on
November 29, 1995 (the "Schedule 14D-9") by PSICOR, Inc., a Pennsylvania
corporation, is hereby amended as set forth herein.  Capitalized terms not
defined herein have the meanings assigned to them in the Schedule 14D-9.

ITEM 3.  IDENTITY AND BACKGROUND.

         (b)  MERGER AGREEMENT.  The Offer is being made pursuant to the Merger
Agreement which provides that, among other things, as soon as practicable after
the consummation of the Offer and satisfaction or waiver of all conditions to
the Merger, the Purchaser will be merged with and into the Company and the
Company will continue as the Surviving Corporation, and will be a wholly owned
subsidiary of Parent.  At the effective time of the Merger (the "Effective
Time"), each issued and outstanding Share immediately prior to the Effective
Time (other than Shares held in the treasury of the Company or owned by
Purchaser, Parent or any direct or indirect wholly owned subsidiary of Parent or
Shares held by dissenting shareholders who perfect their dissenter's rights
under Pennsylvania law) will be converted into the right to receive the Offer
Price, without interest (the "Merger Consideration").  The Merger Agreement is
filed with this Statement as Exhibit 1 and incorporated herein by reference.
The information with respect to the Merger Agreement set forth in Section 11
of the Offer to Purchase under the caption "Merger Agreement" is incorporated
herein by reference.

ITEM 8.  ADDITIONAL INFORMATION TO BE FURNISHED.

         The waiting period under the HSR Act applicable to the Offer expired at
11:59 p.m. on December 13, 1995.

         The Company learned on December 1, 1995 that a complaint, captioned
Reiss, et al. v. PSICOR, Inc. and PSICOR Office Laboratories, Inc., Docket No.
UNN-L-6687-95 (the "Reiss Action"), was filed in the Superior Court of New
Jersey Law Division, Union County (the "New Jersey Court"), on November 21,
1995 and amended on November 27, 1995.  The Reiss Action alleges fraud,
breach of contract and breach of the implied covenant of good faith by the
Company and POL stemming from, among other things, the termination of the
plaintiff's employment with POL which occurred on or about November 1, 1995.
On December 6, 1995 the Company learned that an Order to Show Cause (Without
Restraints) (the "New Jersey Order") was filed by the New Jersey Court on
December 4, 1995 which, among other things, scheduled a hearing for January
10, 1996 as to why a preliminary injunction


                                        2
<PAGE>

should not be issued restraining and enjoining the Company and POL from, among
other things, divesting, selling, disposing of or otherwise transferring
ownership of POL.  On December 6, 1995 the Company and POL filed a complaint
captioned PSICOR, Inc. and PSICOR Office Laboratories, Inc. v. Reiss, et al.,
Docket No. 695157, in the Superior Court of the State of California for the
County of San Diego alleging various claims against the plaintiffs in the Reiss
Action and others (collectively, the "Defendants") for, among other things,
breach of contract and fraud in connection with PSICOR's 1994 acquisition of POL
from the Defendants.  Such complaint seeks unspecified damages and declaratory
relief.  On December 15, 1995, the Company and POL filed a Motion to Dismiss the
Reiss Action based generally on improper venue.  If such Motion to Dismiss is
not


                                        3

<PAGE>


successful, the Company intends to seek the acceleration of the January 10, 1996
hearing contemplated by the New Jersey Order.

         Under the terms of the Offer, Purchaser is not required to consummate
the Offer if, among other things, it determines that "if POL has not been sold
pursuant to a Higher POL Offer, ... all conditions precedent to the closing of
the transactions contemplated by the POL Agreement shall not be capable of being
satisfied promptly."  It is a condition to the obligations of the Company,
Dunaway Holdings and POL to consummate the transactions contemplated by the POL
Purchase Agreement that "no temporary restraining order, preliminary injunction
or permanent injunction or other order precluding, restraining, enjoining,
preventing or prohibiting the consummation of the [POL Purchase] Agreement shall
have been issued by any Federal, state or foreign court or other governmental or
regulatory authority and remain in effect."  No injunction has been issued
regarding the transactions contemplated by the POL Agreement, and the New Jersey
Order does not specifically prohibit the consummation of such transactions prior
to the January 10, 1996 hearing.  However, if such an injunction is issued, or
if the issues raised by the New Jersey Order are not otherwise satisfactorily
resolved prior to the January 3, 1996 scheduled expiration of the Offer, the
Purchaser has advised the Company that it may review its rights and obligations
with respect to the Offer.  The Company intends to vigorously defend the Reiss
Action and any attempt by the plaintiffs to enjoin or delay the sale of POL.

ITEM 9.  MATERIALS TO BE FILED AS EXHIBITS.

         Exhibit 7      Offer to Purchase dated November 29, 1995


                                    SIGNATURE


         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this Amendment No. 1 to Schedule 14D-9
is true, complete and correct.

                                            PSICOR, INC.


                                            By:  /s/ MICHAEL W. DUNAWAY
                                                 Michael W. Dunaway
                                                 Chairman and Chief
                                                 Executive Officer



Dated:  December 18, 1995


                                       4
<PAGE>

                                 Exhibit Index


EXHIBIT NO.:                       DESCRIPTION

    7              Offer to Purchase dated November 29, 1995


                                       5

<PAGE>
                           Offer to Purchase for Cash
                     All Outstanding Shares of Common Stock
                                       of
                                  PSICOR, INC.
                                       at
                          $17.50 NET PER SHARE IN CASH
                                       by
                          BAXTER CVG SERVICES II, INC.
                          a wholly owned subsidiary of
                         BAXTER HEALTHCARE CORPORATION
                          a wholly owned subsidiary of
                           BAXTER INTERNATIONAL INC.

                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON WEDNESDAY, JANUARY 3, 1996
                         UNLESS THE OFFER IS EXTENDED.
                               ------------------
THE  OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, THERE BEING VALIDLY TENDERED
AND NOT WITHDRAWN  PRIOR TO THE  EXPIRATION OF  THE OFFER A  NUMBER OF  SHARES
  WHICH,  WHEN ADDED  TO THE SHARES  OWNED BY  BAXTER HEALTHCARE CORPORATION
    ("PARENT"), BAXTER  CVG  SERVICES  II,  INC.  ("PURCHASER")  AND  THEIR
     AFFILIATES,  CONSTITUTES AT LEAST 80% OF THE SHARES OUTSTANDING ON A
       FULLY DILUTED BASIS (THE "MINIMUM CONDITION"). ALTHOUGH UNDER  THE
       TERMS OF THE MERGER AGREEMENT (AS HEREINAFTER DEFINED) PARENT AND
         PURCHASER  MAY  WAIVE  THE  MINIMUM  CONDITION,  THEY  DO  NOT
         CURRENTLY INTEND  TO  DO SO,  AND  PARENT AND  PURCHASER  MAY
          TERMINATE THE MERGER AGREEMENT IF THE MINIMUM CONDITION IS
            NOT  SATISFIED. THE OFFER  IS    ALSO SUBJECT TO OTHER
                     TERMS AND CONDITIONS. SEE SECTION 14.

THE  BOARD  OF  DIRECTORS  OF  PSICOR,  INC.  (THE  "COMPANY")  UNANIMOUSLY  HAS
DETERMINED THAT
    EACH  OF THE OFFER AND  THE MERGER (AS HEREINAFTER  DEFINED) IS FAIR TO,
    AND IN THE BEST  INTERESTS OF, THE SHAREHOLDERS  OF THE COMPANY,  AND
       UNANIMOUSLY  RECOMMENDS  THAT SHAREHOLDERS  ACCEPT THE  OFFER AND
        TENDER THEIR SHARES  PURSUANT TO  THE OFFER.  THE SHARES  ARE
           LISTED FOR TRADING ON THE NASDAQ
              NATIONAL MARKET UNDER THE SYMBOL "PCOR". SEE SECTION
              6.

PARENT  AND PURCHASER  HAVE ENTERED  INTO THE  TENDER AND  OPTION AGREEMENT (THE
"TENDER AND OPTION AGREEMENT")  WITH MICHAEL W.  DUNAWAY, THE CHAIRMAN,  CHIEF
  EXECUTIVE  OFFICER AND PRESIDENT OF THE  COMPANY ("MR. DUNAWAY"), TRUDY V.
    DUNAWAY, A DIRECTOR, VICE PRESIDENT, SECRETARY AND ASSISTANT  TREASURER
     OF  THE COMPANY ("MRS.  DUNAWAY"), AND THE  DUNAWAY FAMILY TRUST, OF
       WHICH MR. AND  MRS. DUNAWAY ARE  CO-SETTLORS AND CO-TRUSTEES  (THE
       "TRUST"  AND, TOGETHER WITH  MR. AND MRS.  DUNAWAY, THE "SELLING
         SHAREHOLDERS"), PURSUANT  TO WHICH,  AMONG OTHER  THINGS,  THE
         SELLING  SHAREHOLDERS  HAVE GRANTED  PARENT AND  PURCHASER AN
          OPTION TO ACQUIRE AT $17.50  PER SHARE AND HAVE AGREED  TO
            TENDER  AND, IN  THE EVENT SUCH  IRREVOCABLE OPTION IS
              NOT THERETOFORE EXERCISED,  SELL IN  THE OFFER,  IN
               EACH CASE UPON THE TERMS AND
                SUBJECT  TO  THE  CONDITIONS  THEREOF, 1,931,426
                SHARES OWNED BY  THE SELLING SHAREHOLDERS  (OR
                  APPROXIMATELY   38%   OF   THE   COMPANY'S
                    OUTSTANDING   SHARES   CALCULATED    ON
                           A   FULLY  DILUTED  BASIS).  SEE
                                  SECTION 11.
                               ------------------

                                   IMPORTANT

    ANY SHAREHOLDER DESIRING TO TENDER ALL OR ANY PORTION OF SUCH  SHAREHOLDER'S
SHARES  OF COMMON  STOCK, NO  PAR VALUE,  OF THE  COMPANY (THE  "SHARES") SHOULD
EITHER (I) COMPLETE AND SIGN THE LETTER OF TRANSMITTAL (OR A FACSIMILE  THEREOF)
IN  ACCORDANCE WITH THE  INSTRUCTIONS IN THE  LETTER OF TRANSMITTAL  AND MAIL OR
DELIVER IT TOGETHER WITH THE CERTIFICATE(S) EVIDENCING TENDERED SHARES, AND  ANY
OTHER  REQUIRED DOCUMENTS, TO  THE DEPOSITARY OR TENDER  SUCH SHARES PURSUANT TO
THE PROCEDURES FOR BOOK-ENTRY  TRANSFER SET FORTH IN  SECTION 3 OR (II)  REQUEST
SUCH  SHAREHOLDER'S  BROKER, DEALER,  COMMERCIAL  BANK, TRUST  COMPANY  OR OTHER
NOMINEE TO  EFFECT THE  TRANSACTION FOR  SUCH SHAREHOLDER.  A SHAREHOLDER  WHOSE
SHARES  ARE REGISTERED IN THE  NAME OF A BROKER,  DEALER, COMMERCIAL BANK, TRUST
COMPANY OR  OTHER NOMINEE  MUST CONTACT  SUCH BROKER,  DEALER, COMMERCIAL  BANK,
TRUST  COMPANY  OR OTHER  NOMINEE  IF SUCH  SHAREHOLDER  DESIRES TO  TENDER SUCH
SHARES.

    A SHAREHOLDER WHO DESIRES TO TENDER SHARES AND WHOSE CERTIFICATES EVIDENCING
SUCH SHARES  ARE  NOT IMMEDIATELY  AVAILABLE,  OR  WHO CANNOT  COMPLY  WITH  THE
PROCEDURES  FOR BOOK-ENTRY  TRANSFER DESCRIBED  IN THIS  OFFER TO  PURCHASE ON A
TIMELY BASIS, MAY TENDER SUCH SHARES BY FOLLOWING THE PROCEDURES FOR  GUARANTEED
DELIVERY SET FORTH IN SECTION 3.

    QUESTIONS  AND REQUESTS  FOR ASSISTANCE,  OR FOR  ADDITIONAL COPIES  OF THIS
OFFER TO PURCHASE, THE  LETTER OF TRANSMITTAL OR  OTHER TENDER OFFER  MATERIALS,
MAY  BE  DIRECTED  TO THE  INFORMATION  AGENT  OR THE  DEALER  MANAGER  AT THEIR
RESPECTIVE ADDRESSES AND TELEPHONE NUMBERS SET  FORTH ON THE BACK COVER OF  THIS
OFFER  TO PURCHASE. A SHAREHOLDER MAY  ALSO CONTACT BROKERS, DEALERS, COMMERCIAL
BANKS AND TRUST COMPANIES FOR ASSISTANCE CONCERNING THE OFFER.
                               ------------------
                      THE DEALER MANAGER FOR THE OFFER IS:
                                CS First Boston
November 29, 1995
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     -----
<C>        <S>                                                                                                    <C>
INTRODUCTION....................................................................................................           1
THE TENDER OFFER................................................................................................           3
       1.  Terms of the Offer...................................................................................           3
       2.  Acceptance for Payment and Payment for Shares........................................................           5
       3.  Procedures for Tendering Shares......................................................................           6
       4.  Withdrawal Rights....................................................................................           8
       5.  Certain Federal Income Tax Consequences..............................................................           8
       6.  Price Range of Shares; Dividends.....................................................................           9
       7.  Certain Information Concerning the Company...........................................................           9
       8.  Certain Information Concerning Purchaser, Parent and International...................................          11
       9.  Source and Amount of Funds...........................................................................          13
      10.  Background of the Offer; Contacts with the Company...................................................          13
      11.  Purpose of the Offer; Plans for the Company; Merger Agreement; Tender and Option Agreement; and Other
            Agreements..........................................................................................          16
      12.  Dividends and Distributions; Changes in Stock........................................................          31
      13.  Effect of the Offer on the Market for the Shares; NNM Quotation and Exchange Act Registration........          31
      14.  Conditions of the Offer..............................................................................          32
      15.  Regulatory Approvals; State Takeover Laws............................................................          34
      16.  Fees and Expenses....................................................................................          37
      17.  Miscellaneous........................................................................................          38
Schedule I -- Information Concerning the Directors and Executive Officers of Parent, Purchaser and
 International..................................................................................................          39
Annex A -- Text of Subchapter 25E of the Pennsylvania Business Corporation Law..................................         A-1
</TABLE>

                                       i
<PAGE>
To the Holders of Common Stock of PSICOR, Inc.:

                                  INTRODUCTION

    Baxter  CVG Services II, Inc.  ("Purchaser"), a Pennsylvania corporation and
wholly owned subsidiary of Baxter Healthcare Corporation ("Parent"), a  Delaware
corporation   and  wholly   owned  subsidiary   of  Baxter   International  Inc.
("International"),  a  Delaware  corporation,  hereby  offers  to  purchase  all
outstanding  shares of  common stock,  no par  value (the  "Shares"), of PSICOR,
Inc., a  Pennsylvania corporation  (the "Company"),  at a  price of  $17.50  per
Share,  net to the seller in cash, without interest thereon (the "Offer Price"),
upon the terms and subject to the conditions set forth in this Offer to Purchase
and in the related Letter of Transmittal  (which, as amended from time to  time,
together constitute the "Offer").

    Tendering  shareholders  will  not be  obligated  to pay  brokerage  fees or
commissions or,  except  as  set  forth  in  Instruction  6  of  the  Letter  of
Transmittal,  stock transfer  taxes on  the purchase  of Shares  pursuant to the
Offer.  Purchaser  will  pay  all  charges  and  expenses  of  CS  First  Boston
Corporation ("CS First Boston"), as Dealer Manager (the "Dealer Manager"), First
Chicago  Trust  Company  of  New York,  as  Depositary  (the  "Depositary"), and
Georgeson &  Company  Inc.,  as Information  Agent  (the  "Information  Agent"),
incurred in connection with the Offer. See Section 16.

    The Offer is conditioned upon, among other things, there having been validly
tendered  and  not withdrawn  prior  to the  expiration  of the  Offer  at least
4,099,261 Shares, which represents at least  80% of the Shares outstanding on  a
fully  diluted basis  (the "Minimum  Condition"). Assuming  the purchase  by the
Purchaser of the Selling Shareholders' 1,931,426 Shares, Purchaser will need  to
purchase  an  additional  2,167,835  Shares to  satisfy  the  Minimum Condition.
Although under the terms of the Merger Agreement (as hereinafter defined) Parent
and Purchaser may waive the Minimum  Condition, they do not currently intend  to
do  so,  and Parent  and Purchaser  may  terminate the  Merger Agreement  if the
Minimum Condition is not satisfied.

    THE BOARD OF DIRECTORS OF THE COMPANY (THE "BOARD") HAS, BY UNANIMOUS  VOTE,
APPROVED  EACH  OF  THE  OFFER  AND THE  MERGER  (AS  HEREINAFTER  DEFINED), HAS
DETERMINED THAT EACH  OF THE OFFER  AND THE MERGER  IS FAIR TO  AND IN THE  BEST
INTERESTS   OF  THE  COMPANY'S  SHAREHOLDERS  AND  UNANIMOUSLY  RECOMMENDS  THAT
SHAREHOLDERS ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO THE OFFER.

    The Company  has  advised  Parent that  Dain  Bosworth  Incorporated  ("Dain
Bosworth")  has delivered  to the  Board its  opinion to  the effect  that as of
November 21, 1995,  the $17.50 per  share cash consideration  to be received  by
shareholders  of the Company pursuant to the Offer and the Merger is fair to the
shareholders of  the Company  from a  financial point  of view.  A copy  of  the
opinion  of  Dain Bosworth,  which  sets forth  the  factors considered  and the
assumptions made by Dain Bosworth,  is contained in the Company's  Solicitation/
Recommendation  Statement  on Schedule  14D-9 (the  "Schedule 14D-9"),  which is
being mailed to the Company's shareholders herewith.

    The Offer is being made pursuant to  an Agreement and Plan of Merger,  dated
as of November 22, 1995 (the "Merger Agreement"), by and among Parent, Purchaser
and the Company. The Merger Agreement provides that, among other things, as soon
as  practicable  after the  purchase of  Shares  pursuant to  the Offer  and the
satisfaction of the other  conditions set forth in  the Merger Agreement and  in
accordance with the relevant provisions of the Pennsylvania Business Corporation
Law  ("Pennsylvania Law"),  Purchaser will be  merged with and  into the Company
(the "Merger"). Following consummation of the Merger, the Company will  continue
as  the surviving corporation (the "Surviving Corporation") and will be a wholly
owned subsidiary of Parent. At the effective time of the Merger (the  "Effective
Time"),  each issued  and outstanding Share  immediately prior  to the Effective
Time (other  than  Shares held  in  the treasury  of  the Company  or  owned  by
Purchaser, Parent or any direct or indirect wholly owned subsidiary of Parent or
Shares  held  by dissenting  shareholders who  perfect their  dissenter's rights
under Pennsylvania Law) will  be converted into the  right to receive the  Offer
Price,  without interest (the  "Merger Consideration"). The  Merger Agreement is
more fully described in Section 11.

    The Merger  Agreement provides  that, promptly  upon the  later of  (i)  the
purchase  of and payment for any Shares (including without limitation all Shares
subject to the Tender and Option Agreement) by Purchaser or any other subsidiary
of Parent  pursuant  to  the  Offer  or the  Tender  and  Option  Agreement  (as

                                       1
<PAGE>
hereinafter defined) and (ii) the expiration or waiver of the Company's right to
terminate  the  Merger  Agreement  in  the event  that  the  Company  accepts an
"Acceptable Offer"  (as hereinafter  defined)  prior to  the  later of  (x)  the
purchase  of Shares pursuant to the Offer  or the Tender and Option Agreement or
(y) January  3,  1996, Parent  will  be entitled  to  designate such  number  of
directors,  rounded up to the next whole number, on the Board as is equal to the
product of the total number of directors on the Board (which, immediately  prior
to such calculation, will not consist of more than four directors) multiplied by
the  ratio  of the  aggregate  number of  Shares  beneficially owned  by Parent,
Purchaser and their affiliates to the total number of Shares outstanding. In the
Merger Agreement, the Company has agreed to take all actions necessary to  cause
Parent's  designees to be  elected or appointed to  the Board, including without
limitation increasing the  size of  the Board  or securing  the resignations  of
incumbent  directors. Notwithstanding  the foregoing, until  the Effective Time,
neither Parent  nor Purchaser  nor  their affiliates  will  take any  action  as
directors  or shareholders of the Company to cause the removal of Mr. Laverne W.
Rees and Mr. Whitney  A. McFarlin, independent directors  of the Company on  the
date of the Merger Agreement.

    The  consummation of the Merger is subject  to the satisfaction or waiver of
certain conditions, including, if required by law, the approval and adoption  of
the  Merger Agreement by the requisite vote  of the shareholders of the Company.
See Section 11. Under Pennsylvania Law, except as otherwise described below, the
Merger contemplated by the Merger Agreement must be approved by the  affirmative
vote  of a majority of the Shares voted on a proposal to approve the Merger at a
duly convened  meeting  of  the  shareholders of  the  Company.  However,  under
Pennsylvania  Law, if Purchaser acquires, pursuant  to the Offer, the Tender and
Option Agreement or otherwise, at least 80% of the then outstanding Shares,  the
parties  will be able to  cause the Merger under  the Merger Agreement to become
effective, without the approval of the Company's shareholders.

    In the event that Parent, Purchaser  or any permitted assignee of  Purchaser
acquires  at least 80% of the then outstanding Shares, Parent, Purchaser and the
Company have  agreed to  take,  at the  request of  Parent  and subject  to  the
conditions  of the  Merger Agreement,  all necessary  and appropriate  action to
cause the  Merger  to  become  effective  as  soon  as  practicable  after  such
acquisition, without approval of the Company's shareholders. See Section 11. If,
however,  Purchaser does not acquire at least 80% of the then outstanding Shares
and a vote of the Company's  shareholders is required under Pennsylvania Law,  a
significantly  longer  period of  time will  be required  to effect  the Merger.
Although under the terms of the Merger Agreement, Parent and Purchaser may waive
the Minimum Condition,  they do not  currently intend  to do so  and Parent  and
Purchaser  may terminate  the Merger Agreement  if the Minimum  Condition is not
satisfied.

    Concurrently with  the execution  of the  Merger Agreement,  Mr. Michael  W.
Dunaway,  Chairman, Chief Executive  Officer and President  of the Company, Mrs.
Trudy V.  Dunaway, the  wife of  Mr.  Dunaway and  a Director,  Vice  President,
Secretary  and Assistant Treasurer of the Company, and The Dunaway Family Trust,
of which Mr. and Mrs. Dunaway are co-settlors and co-trustees (the "Trust"  and,
together   with  Mr.  and  Mrs.   Dunaway,  the  "Selling  Shareholders")  each,
individually and as trustee, entered into the Tender and Option Agreement, dated
as of  November 22,  1995, with  Parent and  Purchaser (the  "Tender and  Option
Agreement").  The Selling  Shareholders collectively own  1,931,426 Shares which
are currently subject to the Tender  and Option Agreement, approximately 38%  of
the  outstanding Shares calculated on a fully diluted basis or approximately 44%
of the outstanding  Shares. Pursuant  to the  Tender and  Option Agreement,  the
Selling  Shareholders have agreed,  among other things, (i)  to grant Parent and
Purchaser an  irrevocable option  to buy  all  such Shares  owned of  record  or
beneficially  by them from and after the date of the Tender and Option Agreement
at $17.50 per Share (the "Option"), and (ii) to validly tender and, in the event
such Option is not theretofore exercised,  sell all such Shares which are  owned
of  record or beneficially by them prior  to the Expiration Date (as hereinafter
defined) and are subject  to the Tender  and Option Agreement  in the Offer  and
vote such Shares in favor of the Merger, in each case upon the terms and subject
to  the conditions set forth in the Tender and Option Agreement. Pursuant to the
Tender and Option  Agreement, Parent and  Purchaser have the  option to  acquire
from  the Selling  Shareholders at $17.50  per Share  all but not  part of their
Shares on or after January 3, 1996  until the earlier of (i) the termination  of
the  Merger Agreement by mutual consent of the parties, or by the Company if (x)
prior to the purchase of Shares pursuant  to the Offer or the Tender and  Option
Agreement  Parent or Purchaser  materially breaches any  of its representations,
warranties or covenants  in the  Merger Agreement  or (y)  Parent, Purchaser  or
their

                                       2
<PAGE>
affiliates  shall have failed to commence the  Offer by November 29, 1995, other
than in certain specified circumstances or (ii) May 21, 1996. The obligation  of
the Selling Shareholders to sell their Shares pursuant to such option is subject
to  certain conditions specified  in the Tender  and Option Agreement, including
without limitation the conditions that (i)  Shares shall have been accepted  for
payment  pursuant to the Offer or the Offer shall have otherwise expired or been
terminated in accordance with  its terms and (ii)  neither Parent nor  Purchaser
shall  have the right to terminate  the Merger Agreement generally in connection
with the failure  to commence  the Offer  by November  29, 1995  or, in  certain
circumstances,  if the Offer shall have been  terminated or expired prior to any
purchase of Shares  thereunder. The Tender  and Option Agreement  is more  fully
described in Section 11.

    Concurrently  with the execution and delivery of the Merger Agreement, as an
inducement to  Parent to  acquire the  Company and  as a  condition to  Parent's
willingness  to  enter  into  the  Merger  Agreement,  the  Company  and Dunaway
Holdings, Inc. ("Dunaway Holdings"), a Delaware corporation, all of the  capital
stock of which is owned by Mr. Dunaway, entered into a put option agreement (the
"POL  Put Option"), with respect to a form of stock purchase agreement (the "POL
Purchase Agreement" and, together with the POL Put Option, the "POL Agreement"),
pursuant to which Dunaway  Holdings has agreed to  acquire from the Company,  if
the  Company exercises  the POL  Put Option,  all of  the outstanding  shares of
PSICOR Office Laboratories, Inc.  ("POL"), a New  Jersey corporation and  wholly
owned  subsidiary of  the Company,  together with  all of  the Company's rights,
interests, liabilities and obligations relating to  POL, if no higher offer  for
POL  is received by the  Company. If, following exercise  of the POL Put Option,
the Company accepts  a Higher  POL Offer  (as hereinafter  defined), the  Merger
Agreement allows the Company to terminate the POL Agreement. See Section 11. The
Company  has  informed Purchaser  that  it has  retained  Dain Bosworth  to seek
possible buyers for POL other than  Dunaway Holdings and that Dain Bosworth  has
commenced such process. It is a condition to the Offer that POL shall be sold to
a Higher POL Offer or that the POL Agreement be in full force and effect and all
conditions to the closing of the transactions contemplated thereby be capable of
being  satisfied promptly, and  it is a  condition to the  Merger that POL shall
have been sold, whether pursuant to the POL Agreement or a Higher POL Offer. See
Section 11. The POL Agreement is more fully described in Section 11.

    The Company has informed Purchaser that, as of November 22, 1995, there were
4,360,142 Shares issued and  outstanding, 95,779 Shares issued  and held in  the
treasury  of the Company, 706,040 Shares  reserved for issuance upon exercise of
outstanding options  granted under  the Company's  option plans,  31,894  Shares
reserved for issuance upon expiration of the current "purchase period" under the
Company's  Employee Stock Purchase Plan and  26,000 Shares reserved for issuance
under the Savannah Agreement (as hereinafter  defined). As a result, as of  such
date,  the Minimum Condition would be  satisfied if Purchaser acquired 2,167,835
Shares from  shareholders  other  than  the  Selling  Shareholders,  given  that
pursuant to the Tender and Option Agreement the Selling Shareholders have agreed
to tender their 1,931,426 Shares.

    THIS  OFFER  TO PURCHASE  AND THE  LETTER  OF TRANSMITTAL  CONTAIN IMPORTANT
INFORMATION WHICH SHOULD  BE READ  CAREFULLY BEFORE  ANY DECISION  IS MADE  WITH
RESPECT TO THE OFFER.

                                THE TENDER OFFER

    1.  TERMS OF THE OFFER.  Upon the terms and subject to the conditions of the
Offer  (including without limitation the Minimum  Condition and, if the Offer is
extended or amended, the  terms and conditions of  any extension or  amendment),
Purchaser  will accept for payment and pay for all Shares validly tendered prior
to the Expiration Date (as hereinafter defined) and not withdrawn subject to the
Minimum Condition and in accordance with  Section 4. The term "Expiration  Date"
means  12:00 Midnight, New York City time, on Wednesday, January 3, 1996, unless
and until Purchaser, in  its sole discretion  (but subject to  the terms of  the
Merger  Agreement), will have extended the period of time during which the Offer
is open, in which event the term "Expiration Date" will mean the latest time and
date at which the Offer, as so  extended by Purchaser, will expire. Pursuant  to
the  Merger Agreement,  Parent and  Purchaser have agreed  that if  prior to the
initial scheduled Expiration Date of the Offer the Company has received a Higher
POL Offer that  the Company  intends to accept,  then at  the Company's  request
Purchaser will extend the Offer for fifteen business days in order to facilitate
the consummation of a transaction pursuant to such Higher POL Offer. See Section
11.

                                       3
<PAGE>
    Purchaser  expressly reserves the right, in its sole discretion, at any time
and from time to time, to extend for any reason the period of time during  which
the  Offer is open, including  the occurrence of any  of the events specified in
Section 14,  by  giving  oral  or  written  notice  of  such  extension  to  the
Depositary.  During any such  extension, all Shares  previously tendered and not
withdrawn will remain subject to the Offer, subject to the rights of a tendering
shareholder to withdraw its Shares. See Section 4.

    Subject to  the  applicable  regulations  of  the  Securities  and  Exchange
Commission  (the "Commission"), Purchaser  expressly reserves the  right, in its
sole discretion (but subject to the terms of the Merger Agreement), at any  time
and from time to time, (i) to delay acceptance for payment of, or, regardless of
whether  such Shares  were theretofore  accepted for  payment, payment  for, any
Shares pending receipt of any regulatory approval specified in Section 15 or  in
order  to comply  in whole  or in part  with any  other applicable  law, (ii) to
terminate the  Offer  and not  accept  for payment  any  Shares if  any  of  the
conditions  referred  to  in Section  14  has  not been  satisfied  or  upon the
occurrence of any of the events specified  in Section 14 and (iii) to waive  any
condition  or otherwise amend the Offer in any respect by giving oral or written
notice of such delay, termination, waiver or amendment to the Depositary and  by
making a public announcement thereof.

    The  Merger Agreement  provides that,  without the  consent of  the Company,
Purchaser will  not decrease  the Offer  Price, decrease  the number  of  Shares
sought,  change the form of consideration to be  paid in the Offer, or amend any
condition of the  Offer in any  manner adverse to  the shareholders (other  than
with  respect to the Minimum Condition  or insignificant changes or amendments),
except that if prior to the initial  scheduled expiration date of the Offer  the
Company has received a Higher POL Offer that the Company intends to accept, then
at  the Company's request  Purchaser will extend the  Offer for fifteen business
days in order to facilitate the  consummation of a transaction pursuant to  such
Higher  POL Offer; and FURTHER, that if on the initial scheduled expiration date
of the Offer (as it may be extended)  all conditions to the Offer will not  have
been  satisfied or  waived, the Offer  may be  extended from time  to time until
February 1, 1996. In  addition, the Merger Agreement  provides that without  the
consent  of the Company, the  Offer Price may be increased  and the Offer may be
extended to the extent required  by law in connection  with such an increase  in
the  Offer Price. Purchaser will terminate the Offer upon any termination of the
Merger Agreement pursuant to the terms thereof.

    Purchaser acknowledges that (i) Rule 14e-1(c) under the Securities  Exchange
Act  of 1934,  as amended  (the "Exchange Act"),  requires Purchaser  to pay the
consideration  offered  or  return  the  Shares  tendered  promptly  after   the
termination  or  withdrawal  of the  Offer,  and  (ii) Purchaser  may  not delay
acceptance for payment of, or payment for  (except as provided in clause (i)  of
the  first  sentence of  the second  preceding paragraph),  any Shares  upon the
occurrence of any of  the conditions specified in  Section 14 without  extending
the period of time during which the Offer is open.

    Any such extension, delay, termination, waiver or amendment will be followed
as   promptly  as  practicable   by  public  announcement   thereof,  with  such
announcement in the case of an extension to be made no later than 9:00 a.m., New
York City  time,  on  the  next business  day  after  the  previously  scheduled
Expiration  Date. Subject to applicable  law (including Rules 14d-4(c), 14d-6(d)
and 14e-1  under  the Exchange  Act,  which  require that  material  changes  be
promptly  disseminated to shareholders in a manner reasonably designed to inform
them of such  changes) and without  limiting the manner  in which Purchaser  may
choose  to make  any public announcement,  Purchaser will have  no obligation to
publish, advertise or otherwise communicate  any such public announcement  other
than by issuing a press release to the Dow Jones News Service.

    If  Purchaser  makes a  material change  in the  terms of  the Offer  or the
information concerning the Offer,  or if it waives  a material condition of  the
Offer, Purchaser will extend the Offer to the extent required by Rules 14d-4(c),
14d-6(d) and 14e-1 under the Exchange Act.

    Subject  to the terms of  the Merger Agreement, if,  prior to the Expiration
Date, Purchaser should decide to decrease  the number of Shares being sought  or
to  increase  or decrease  the consideration  being offered  in the  Offer, such
decrease in the number of  Shares being sought or  such increase or decrease  in
the  consideration being  offered will be  applicable to  all shareholders whose
Shares are accepted for payment pursuant to the Offer and, if at the time notice
of  any   such   decrease   in   the  number   of   Shares   being   sought   or

                                       4
<PAGE>
such increase or decrease in the consideration being offered is first published,
sent or given to holders of such Shares, the Offer is scheduled to expire at any
time earlier than the period ending on the tenth business day from and including
the  date that such notice is first so  published, sent or given, the Offer will
be extended at least until the expiration  of such ten business day period.  For
purposes  of the Offer,  a "business day"  means any day  other than a Saturday,
Sunday or  Federal holiday  and consists  of  the time  period from  12:01  a.m.
through 12:00 Midnight, New York City time.

    The  Company has provided Purchaser with  the Company's shareholder list and
security position listings for the purpose of disseminating the Offer to holders
of Shares. This Offer to Purchase, the related Letter of Transmittal, and  other
relevant  materials,  will be  mailed to  record holders  of Shares  whose names
appear on the Company's shareholder list  and will be furnished, for  subsequent
transmittal  to  beneficial owners  of Shares,  to brokers,  dealers, commercial
banks, trust companies and  similar persons whose names,  or the names of  whose
nominees,  appear on the shareholder  list or, if applicable,  who are listed as
participants in a clearing agency's security position listing.

    2.  ACCEPTANCE  FOR PAYMENT  AND PAYMENT  FOR SHARES.   Upon  the terms  and
subject  to the conditions of the Offer  (including, if the Offer is extended or
amended, the terms and conditions of any such extension or amendment), Purchaser
will purchase, by accepting  for payment, and will  pay for, all Shares  validly
tendered  prior to the Expiration Date (and not properly withdrawn in accordance
with Section 4) promptly after the later to occur of (i) the Expiration Date and
(ii) the  satisfaction or  waiver of  the conditions  set forth  in Section  14.
Subject  to  applicable rules  of the  Commission  and the  terms of  the Merger
Agreement, Purchaser expressly reserves the  right, in its discretion, to  delay
acceptance  for  payment  of, or  payment  for,  Shares pending  receipt  of any
regulatory approvals specified in Section 15. See Section 15.

    In all cases,  payment for Shares  purchased pursuant to  the Offer will  be
made  only  after  timely receipt  by  the  Depositary of  (i)  the certificates
evidencing such Shares (the  "Share Certificates") or  timely confirmation of  a
book-entry  transfer  (a  "Book-Entry  Confirmation") of  such  Shares,  if such
procedure is available, into  the Depositary's account  at The Depository  Trust
Company,  the Midwest  Securities Trust  Company or  the Philadelphia Depository
Trust Company  (each a  "Book-Entry Transfer  Facility" and,  collectively,  the
"Book-Entry  Transfer  Facilities")  pursuant  to the  procedures  set  forth in
Section 3,  (ii) the  Letter  of Transmittal  (or facsimile  thereof),  properly
completed and duly executed and (iii) any other documents required by the Letter
of Transmittal.

    For  purposes of the  Offer, Purchaser will  be deemed to  have accepted for
payment, and thereby purchased, tendered Shares if, as and when Purchaser  gives
oral  or  written notice  to the  Depositary of  Purchaser's acceptance  of such
Shares for payment. Payment  for Shares accepted pursuant  to the Offer will  be
made  by deposit of the purchase price  therefor with the Depositary, which will
act as agent for  tendering shareholders for the  purpose of receiving  payments
from  Purchaser and transmitting payments  to such tendering shareholders. Under
no circumstances  will interest  on the  purchase price  for Shares  be paid  by
Purchaser, regardless of any delay in making such payment.

    If  any tendered Shares are not accepted for payment for any reason pursuant
to the terms and conditions of the Offer, or if Share Certificates are submitted
evidencing  more  Shares  than  are  tendered,  Share  Certificates   evidencing
unpurchased   Shares  will  be  returned,   without  expense  to  the  tendering
shareholder (or, in the case of Shares tendered by book-entry transfer into  the
Depositary's account at a Book-Entry Transfer Facility pursuant to the procedure
set forth in Section 3, such Shares will be credited to an account maintained at
such  Book-Entry Transfer  Facility), as  promptly as  practicable following the
expiration, termination or withdrawal of the Offer.

    If, prior to the Expiration  Date, Purchaser increases the consideration  to
be  paid per  Share pursuant  to the  Offer, Purchaser  will pay  such increased
consideration for all such  Shares purchased pursuant to  the Offer, whether  or
not such Shares were tendered prior to such increase in consideration.

    Purchaser reserves the right to transfer or assign, in whole at any time, or
in  part from  time to  time, to  one or  more of  its affiliates,  the right to
purchase  all  or  any   portion  of  the  Shares   tendered  pursuant  to   the

                                       5
<PAGE>
Offer,  but any such  transfer or assignment  will not relieve  Purchaser of its
obligations under the Offer and will in no way prejudice the rights of tendering
shareholders to receive  payment for  Shares validly tendered  and accepted  for
payment pursuant to the Offer.

    3.  PROCEDURES FOR TENDERING SHARES.

    VALID TENDER OF SHARES.  In order for Shares to be validly tendered pursuant
to  the  Offer,  the  Letter of  Transmittal  (or  facsimile  thereof), properly
completed and duly  executed, with  any required signature  guarantees, and  any
other  required documents,  must be  received by  the Depositary  at one  of its
addresses set forth on  the back cover  of this Offer to  Purchase prior to  the
Expiration Date and either (i) the Share Certificates evidencing tendered Shares
must  be received by the  Depositary at such address  or Shares must be tendered
pursuant to  the  procedure  for  book-entry  transfer  described  below  and  a
Book-Entry  Confirmation must be received by  the Depositary, in each case prior
to the Expiration Date, or (ii)  the tendering shareholder must comply with  the
guaranteed delivery procedures described below.

    THE  METHOD  OF  DELIVERY  OF  SHARE  CERTIFICATES  AND  ALL  OTHER REQUIRED
DOCUMENTS, INCLUDING DELIVERY  THROUGH ANY BOOK-ENTRY  TRANSFER FACILITY, IS  AT
THE  OPTION AND  RISK OF  THE TENDERING  SHAREHOLDER, AND  THE DELIVERY  WILL BE
DEEMED MADE ONLY  WHEN ACTUALLY RECEIVED  BY THE DEPOSITARY.  IF DELIVERY IS  BY
MAIL,  REGISTERED  MAIL  WITH  RETURN RECEIPT  REQUESTED,  PROPERLY  INSURED, IS
RECOMMENDED. IN ALL CASES,  SUFFICIENT TIME SHOULD BE  ALLOWED TO ENSURE  TIMELY
DELIVERY.

    BOOK-ENTRY  TRANSFER.  The Depositary will establish an account with respect
to the Shares  at each Book-Entry  Transfer Facility for  purposes of the  Offer
within  two business  days after  the date  of this  Offer to  Purchase, and any
financial institution that is  a participant in any  of the Book-Entry  Transfer
Facilities'  systems  may  make  book-entry  delivery  of  Shares  by  causing a
Book-Entry Transfer  Facility  to transfer  such  Shares into  the  Depositary's
account  at a  Book-Entry Transfer Facility  in accordance  with such Book-Entry
Transfer Facility's  procedures  for  transfer. However,  although  delivery  of
Shares  may be  effected through  book-entry transfer  at a  Book-Entry Transfer
Facility, the Letter of  Transmittal (or facsimile  thereof), with any  required
signature  guarantees, and any  other required documents, must,  in any case, be
transmitted to and received by the Depositary at one of its addresses set  forth
on  the back cover of this Offer to Purchase prior to the Expiration Date or the
tendering shareholder  must  comply  with  the  guaranteed  delivery  procedures
described  below. DELIVERY  OF DOCUMENTS  TO A  BOOK-ENTRY TRANSFER  FACILITY IN
ACCORDANCE WITH BOOK-ENTRY  TRANSFER FACILITY'S PROCEDURES  DOES NOT  CONSTITUTE
DELIVERY TO THE DEPOSITARY.

    SIGNATURE  GUARANTEE.   Signatures  on all  Letters  of Transmittal  must be
guaranteed by a participant in the Security Transfer Agents Medallion Program or
the New York Stock Exchange Medallion  Signature Guarantee Program or the  Stock
Exchange  Medallion Program (each, an "Eligible Institution"), unless the Shares
tendered thereby are tendered (i) by a  registered holder of Shares who has  not
completed  either the  box entitled "Special  Delivery Instructions"  or the box
entitled "Special Payment Instructions"  on the Letter  of Transmittal, or  (ii)
for  the account of an Eligible Institution.  See Instruction 1 of the Letter of
Transmittal.

    If a Share Certificate is registered in the name of a person other than  the
signer  of the Letter  of Transmittal, or if  payment is to be  made, or a Share
Certificate not accepted for  payment or not  tendered is to  be returned, to  a
person  other than the registered holder(s),  then the Share Certificate must be
endorsed or  accompanied by  appropriate  stock powers,  in either  case  signed
exactly  as  the  name(s)  of  the  registered  holder(s)  appear  on  the Share
Certificate, with the  signature(s) on  such Share Certificate  or stock  powers
guaranteed  as  described above.  See  Instructions 1  and  5 of  the  Letter of
Transmittal.

    GUARANTEED DELIVERY.  If a shareholder desires to tender Shares pursuant  to
the  Offer  and  such  shareholder's  Share  Certificates  are  not  immediately
available or time will not permit all required documents to reach the Depositary
prior to the Expiration Date or the procedure for book-entry transfer cannot  be
completed on a timely basis, such Shares may nevertheless be tendered if all the
following conditions are satisfied:

        (i) the tender is made by or through an Eligible Institution;

                                       6
<PAGE>
        (ii)  a  properly  completed  and  duly  executed  Notice  of Guaranteed
    Delivery, substantially  in  the form  provided  by Purchaser  herewith,  is
    received  by the Depositary as provided  below prior to the Expiration Date;
    and

       (iii) in the case  of a guarantee of  Shares, the Share Certificates  for
    all   tendered  Shares,  in  proper  form  for  transfer,  or  a  Book-Entry
    Confirmation, together with a properly completed and duly executed Letter of
    Transmittal  (or  manually  signed  facsimile  thereof)  with  any  required
    signature  guarantee  and any  other documents  required  by such  Letter of
    Transmittal,  are  received   by  the  Depositary   within  three   National
    Association  of Securities Dealers, Inc. ("NASD") Automated Quotation System
    National Market ("NNM")  trading days  after the  date of  execution of  the
    Notice of Guaranteed Delivery.

    Any Notice of Guaranteed Delivery may be delivered by hand or transmitted by
telegram,  facsimile transmission or  mail to the Depositary  and must include a
guarantee by an  Eligible Institution in  the form  set forth in  the Notice  of
Guaranteed Delivery.

    Notwithstanding  any other  provision hereof,  payment for  Shares purchased
pursuant to the Offer will, in all  cases, be made only after timely receipt  by
the  Depositary  of (i)  the  Share Certificates  evidencing  such Shares,  or a
Book-Entry Confirmation of  the delivery of  such Shares, if  available, (ii)  a
properly  completed and duly executed Letter  of Transmittal (or manually signed
facsimile thereof)  and (iii)  any other  documents required  by the  Letter  of
Transmittal.

    DETERMINATION  OF  VALIDITY.    All  questions  as  to  the  validity, form,
eligibility (including  time  of receipt)  and  acceptance for  payment  of  any
tendered  Shares  pursuant to  any  of the  procedures  described above  will be
determined by Purchaser,  in its  sole discretion, whose  determination will  be
final  and  binding on  all parties.  Purchaser reserves  the absolute  right to
reject any or all  tenders of any Shares  determined by it not  to be in  proper
form  or if the acceptance  for payment of, or payment  for, such Shares may, in
the opinion of  Purchaser's counsel,  be unlawful. Purchaser  also reserves  the
absolute  right, in its sole  discretion, to waive any  of the conditions of the
Offer or any defect or irregularity in any tender with respect to Shares of  any
particular  shareholder, whether  or not  similar defects  or irregularities are
waived in the case of other shareholders. No tender of Shares will be deemed  to
have  been validly made until all defects  and irregularities have been cured or
waived.

    Purchaser's  interpretation  of  the  terms  and  conditions  of  the  Offer
(including the Letter of Transmittal and the instructions thereto) will be final
and  binding. None of Parent, Purchaser, the Dealer Manager, the Depositary, the
Information Agent  nor  any  other  person  will  be  under  any  duty  to  give
notification  of  any defects  or irregularities  in tenders  or will  incur any
liability for failure to give any such notification.

    APPOINTMENT AS PROXY.   By executing  a Letter of  Transmittal as set  forth
above,  a tendering shareholder  irrevocably appoints designees  of Purchaser as
such shareholder's proxies, each  with full power of  substitution, to the  full
extent  of such shareholder's rights with respect to the Shares tendered by such
shareholder and accepted  for payment  by Purchaser  (and any  and all  non-cash
dividends,  distributions, rights, other  Shares, or other  securities issued or
issuable in respect  of such Shares  on or  after November 22,  1995). All  such
proxies will be considered coupled with an interest in the tendered Shares. This
appointment  will be effective if, when, and  only to the extent that, Purchaser
accepts such Shares for payment pursuant to the Offer. Upon such acceptance  for
payment, all prior proxies given by such shareholder with respect to such Shares
and other securities will, without further action, be revoked, and no subsequent
proxies  may be  given. The  designees of  Purchaser will,  with respect  to the
Shares and other securities for which the appointment is effective, be empowered
to exercise all voting  and other rights  of such shareholder  as they in  their
sole  discretion may deem proper at  any annual, special, adjourned or postponed
meeting of  the Company's  shareholders, by  written consent  or otherwise,  and
Purchaser  reserves the  right to  require that,  in order  for Shares  or other
securities  to  be  deemed   validly  tendered,  immediately  upon   Purchaser's
acceptance  for payment of such  Shares Purchaser must be  able to exercise full
voting rights  with respect  to  such Shares,  except  as otherwise  limited  by
applicable Pennsylvania Law.

    TO  PREVENT FEDERAL INCOME TAX BACKUP WITHHOLDING WITH RESPECT TO PAYMENT TO
CERTAIN SHAREHOLDERS OF THE PURCHASE PRICE  OF SHARES PURCHASED PURSUANT TO  THE
OFFER, EACH SUCH SHAREHOLDER MUST PROVIDE THE

                                       7
<PAGE>
DEPOSITARY  WITH SUCH  SHAREHOLDER'S CORRECT TAXPAYER  IDENTIFICATION NUMBER AND
CERTIFY THAT  SUCH SHAREHOLDER  IS  NOT SUBJECT  TO  FEDERAL INCOME  TAX  BACKUP
WITHHOLDING  BY COMPLETING THE SUBSTITUTE FORM W-9 IN THE LETTER OF TRANSMITTAL.
IF BACKUP WITHHOLDING APPLIES WITH RESPECT  TO A SHAREHOLDER, THE DEPOSITARY  IS
REQUIRED  TO  WITHHOLD  31%  OF  ANY  PAYMENTS  MADE  TO  SUCH  SHAREHOLDER. SEE
INSTRUCTION 9 OF THE LETTER OF TRANSMITTAL.

    Purchaser's acceptance for payment of Shares tendered pursuant to the  Offer
will  constitute  a  binding  agreement between  the  tendering  shareholder and
Purchaser upon the terms and subject to the conditions of the Offer.

    4.  WITHDRAWAL RIGHTS.   Tenders of  Shares made pursuant  to the Offer  are
irrevocable  except that such Shares  may be withdrawn at  any time prior to the
Expiration Date  and,  unless  theretofore accepted  for  payment  by  Purchaser
pursuant to the Offer, may also be withdrawn at any time after January 27, 1996.

    If  Purchaser extends the Offer, is delayed in its acceptance for payment of
Shares or is unable to accept Shares  for payment pursuant to the Offer for  any
reason,  then,  without prejudice  to Purchaser's  rights  under the  Offer, the
Depositary may, nevertheless,  on behalf of  Purchaser, retain tendered  Shares,
and  such  Shares may  not  be withdrawn  except  to the  extent  that tendering
shareholders are entitled to withdrawal rights  as described in this Section  4.
Any  such delay will be by  an extension of the Offer  to the extent required by
law.

    For a  withdrawal  to be  effective,  a written,  telegraphic  or  facsimile
transmission  notice of withdrawal must be  timely received by the Depositary at
one of its addresses set forth on the back cover of this Offer to Purchase.  Any
such  notice of withdrawal must specify the  name of the person who tendered the
Shares to be withdrawn, the number of Shares to be withdrawn and the name of the
registered holder,  if different  from  that of  the  person who  tendered  such
Shares.  If  Share  Certificates evidencing  Shares  to be  withdrawn  have been
delivered or otherwise identified to the Depositary, then, prior to the physical
release of  such Share  Certificates, the  serial numbers  shown on  such  Share
Certificates  must be  submitted to the  Depositary and the  signature(s) on the
notice of withdrawal must be guaranteed by an Eligible Institution, unless  such
Shares  have been tendered for the account of an Eligible Institution. If Shares
have been tendered  pursuant to  the procedure  for book-entry  transfer as  set
forth  in Section  3, any notice  of withdrawal  must also specify  the name and
number of the account  at the Book-Entry Transfer  Facility to be credited  with
the withdrawn Shares.

    All  questions as to  the form and  validity (including time  of receipt) of
notices of withdrawal will be determined  by Purchaser, in its sole  discretion,
whose  determination will be  final and binding. None  of Parent, Purchaser, the
Dealer Manager, the Depositary, the Information  Agent or any other person  will
be  under any duty to give notification  of any defects or irregularities in any
notice of  withdrawal  or incur  any  liability for  failure  to give  any  such
notification.

    Any  Shares properly  withdrawn will thereafter  be deemed to  not have been
validly tendered for  purposes of the  Offer. However, withdrawn  Shares may  be
re-tendered  at any time  prior to the  Expiration Date by  following one of the
procedures described in Section 3.

    5.  CERTAIN FEDERAL INCOME TAX CONSEQUENCES.  The receipt of cash for Shares
pursuant to the Offer or in the Merger will be a taxable transaction for Federal
income tax  purposes and  may also  be a  taxable transaction  under  applicable
state,  local or foreign tax laws. In general, a shareholder will recognize gain
or loss for  Federal income  tax purposes equal  to the  difference between  the
amount  of cash received in  exchange for the Shares  sold and the shareholder's
adjusted tax basis in such Shares. Assuming the Shares constitute capital assets
in the hands of the shareholder, such gain or loss will be capital gain or  loss
and will be long term capital gain or loss if the holder has held the Shares for
more  than one year  at the time  of the sale.  Gain or loss  will be calculated
separately for each block of Shares tendered pursuant to the Offer.

    The  foregoing  discussion  may  not  be  applicable  to  certain  types  of
shareholders,  including  shareholders  who  acquired  Shares  pursuant  to  the
exercise of stock options or otherwise as compensation, individuals who are  not
citizens or residents of the United States and foreign corporations, or entities
that  are otherwise subject to special  tax treatment under the Internal Revenue
Code of 1986, as amended (the "Code").

                                       8
<PAGE>
    THE FEDERAL INCOME TAX  DISCUSSION SET FORTH ABOVE  IS INCLUDED FOR  GENERAL
INFORMATION  ONLY  AND IS  BASED  UPON PRESENT  LAW.  SHAREHOLDERS ARE  URGED TO
CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE SPECIFIC TAX CONSEQUENCES OF  THE
OFFER  AND  THE MERGER  TO THEM,  INCLUDING  THE APPLICATION  AND EFFECT  OF THE
ALTERNATIVE MINIMUM TAX, AND STATE, LOCAL AND FOREIGN TAX LAWS.

    6.  PRICE  RANGE OF SHARES;  DIVIDENDS.  The  Shares are quoted  on the  NNM
under  the  symbol "PCOR."  The  following table  sets  forth, for  the quarters
indicated, the high and  low sales prices  per Share on the  NNM as reported  in
publicly available sources for each of the quarters indicated.

<TABLE>
<CAPTION>
                                                           MARKET PRICES
                                                    ---------------------------
                                                       HIGH             LOW
                                                    -----------     -----------
<S>                                                 <C>             <C>
FISCAL YEAR ENDED SEPTEMBER 30, 1994:
  First Quarter...................................  $  12   1/2     $  11
  Second Quarter..................................     11   3/4        10
  Third Quarter...................................     11   1/2         8   1/4
  Fourth Quarter..................................     10   3/4         8   1/4
FISCAL YEAR ENDED SEPTEMBER 30, 1995:
  First Quarter...................................     10   3/4         8   3/4
  Second Quarter..................................     12   7/8         9   3/4
  Third Quarter...................................     12   3/4        10   3/8
  Fourth Quarter..................................     11   3/4         8   1/2
FISCAL YEAR ENDED SEPTEMBER 30, 1996:
  First Quarter (through November 28, 1995).......     18              10   3/4
</TABLE>

    On  November  21,  1995, the  last  full  trading day  prior  to  the public
announcement of  the execution  of the  Merger Agreement,  the reported  closing
sales  price of the  Shares on the  NNM was $15  1/4 per Share.  On November 28,
1995, the last full trading day prior to the date of this Offer to Purchase, the
reported closing sales price  of the Shares  on the NNM was  $17 1/4 per  Share.
SHAREHOLDERS ARE URGED TO OBTAIN A CURRENT MARKET QUOTATION FOR THE SHARES.

    The  Company has not paid  a dividend on the Shares  since the date on which
the Shares  were first  offered to  the  public. In  the Merger  Agreement,  the
Company  has agreed that it will not declare,  set aside or pay any dividends on
or make  other distributions  in respect  of any  shares of  its capital  stock.
Notwithstanding  the foregoing, under the Merger Agreement the Company, upon the
consummation by  the  Company  of  a  transaction for  a  Higher  POL  Offer  in
accordance  with the Merger Agreement, may declare and pay a dividend in respect
of Shares (payable to the Company's  record holders of Shares immediately  prior
to  the earlier of  (i) Purchaser's acceptance  of Shares for  payment under the
Offer or (ii) the Effective Time) in an aggregate amount equal to the amount  of
the  excess  of  the  net  proceeds actually  received  by  the  Company  in the
transaction  for  the  Higher   POL  Offer  (after   taking  into  account   all
out-of-pocket  costs and expenses directly  related to such transaction incurred
after the date of  the Merger Agreement, including  without limitation the  fees
and  expenses, to  the extent reimbursable  by the Company,  of Dunaway Holdings
incurred in connection with the POL Agreement and of Dain Bosworth in connection
with marketing POL) over  the $4 million  to be received by  the Company in  the
transaction  contemplated by  the POL  Agreement as  of the  date of  the Merger
Agreement. See Section 11. Moreover, under certain loan agreements, the  Company
would be required to obtain the lender's consent prior to paying dividends.

    7.   CERTAIN INFORMATION CONCERNING THE COMPANY.  The information concerning
the  Company  contained   in  this  Offer   to  Purchase,  including   financial
information,  has been taken from or based upon publicly available documents and
records on file with the Commission and other public sources. Neither Parent nor
Purchaser assumes any  responsibility for  the accuracy or  completeness of  the
information  concerning the Company  contained in such  documents and records or
for any failure by the Company to disclose events which may have occurred or may
affect the  significance or  accuracy  of any  such  information but  which  are
unknown to Parent or Purchaser.

    The  Company  is  a  Pennsylvania corporation  and  its  principal executive
offices are located at 16818 Via  del Campo Court, San Diego, California  92127.
The    telephone    number    of    the    Company    at    such    offices   is

                                       9
<PAGE>
(619) 485-5599. The Company provides skilled personnel, disposable supplies  and
capital  equipment to  hospitals for the  performance of  open-heart surgery and
related procedures and provides on-site laboratory testing system facilities  to
individual  physicians and group  medical practices through  its POL subsidiary.
The Company  was incorporated  in Pennsylvania.  The Company  provides  contract
services to more than 400 hospitals in 38 states.

    FINANCIAL  INFORMATION.   Set forth  below is  certain selected consolidated
financial information relating  to the  Company and its  subsidiaries which  has
been  excerpted  or  derived  from the  financial  statements  contained  in the
Company's Annual Report  on Form 10-K  for the fiscal  year ended September  30,
1994  (the "Company Form 10-K")  and for 1995 an  earnings release issued by the
Company on November 29,  1995 disclosing certain  financial information for  the
Company's  fiscal year ended  September 30, 1995  (the "Earnings Release"). More
comprehensive financial information is  included in the  Company Form 10-K,  the
Earnings  Release and other documents filed  by the Company with the Commission.
The financial information that follows is qualified in its entirety by reference
to the Company Form 10-K and other documents, including the financial statements
and related notes contained therein. The  Company Form 10-K and other  documents
may be examined and copies may be obtained from the offices of the Commission in
the  manner set forth below. Copies of the Earnings Release may be obtained from
the Company.

                                  PSICOR, INC.
                  SELECTED CONSOLIDATED FINANCIAL INFORMATION
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                                      YEAR ENDED SEPTEMBER 30,
                                                                                   -------------------------------
                                                                                     1995       1994       1993
                                                                                   ---------  ---------  ---------
<S>                                                                                <C>        <C>        <C>
INCOME STATEMENT DATA:
Revenue..........................................................................  $  97,353  $  82,066  $  76,918
Gross Profit.....................................................................     16,001     16,394     16,581
Operating Profit.................................................................      4,691      7,045      7,647
Other Income (Expense), net......................................................     (1,094)       492        468
Income before Taxes..............................................................      3,538      7,520      8,115
Net Income.......................................................................      1,284      4,479      4,532
PER SHARE INFORMATION:
Earnings Per Share...............................................................  $     .29  $    1.02  $    1.02
Number of Shares Used in Computation.............................................      4,428      4,389      4,433
</TABLE>

<TABLE>
<CAPTION>
                                                                                          AT SEPTEMBER 30,
                                                                                   -------------------------------
                                                                                     1995       1994       1993
                                                                                   ---------  ---------  ---------
<S>                                                                                <C>        <C>        <C>
BALANCE SHEET DATA:
Total Current Assets.............................................................  $  33,394  $  26,930  $  26,465
Total Assets.....................................................................     54,844     50,014     43,195
Current Portion of Long-Term Liabilities.........................................        409        262        212
Total Current Liabilities........................................................     14,036     11,031      8,752
Total Long-Term Liabilities......................................................      1,036        818      1,002
Total Shareholders' Equity.......................................................     39,771     38,165     33,441
</TABLE>

    The Company is subject to the information and reporting requirements of  the
Exchange  Act and  is required  to file reports  and other  information with the
Commission relating  to its  business, financial  condition and  other  matters.
Information,  as  of particular  dates, concerning  the Company's  directors and
officers, their  remuneration,  stock options  granted  to them,  the  principal
holders  of the Company's securities, any  material interests of such persons in
transactions with the Company and other  matters is required to be disclosed  in
proxy  statements distributed to  the Company's shareholders  and filed with the
Commission. These  reports, proxy  statements and  other information  should  be
available  for inspection at  the public reference  facilities of the Commission
located in Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549,  and
also  should be available for inspection and  copying at prescribed rates at the
following regional  offices of  the Commission:  Seven World  Trade Center,  New
York, New York 10048; and 500 West Madison

                                       10
<PAGE>
Street, Suite 1400, Chicago, Illinois 60661. Copies of this material may also be
obtained  by mail,  upon payment  of the  Commission's customary  fees, from the
Commission's principal office at 450 Fifth Street, N.W., Washington, D.C. 20549.
Reports, proxy statements  and other information  concerning the Company  should
also  be available for inspection  at the offices of  the NASD, Reports Section,
1735 K Street, N.W., Washington, D.C.  20006. Except as otherwise noted in  this
Offer  to Purchase, all of  the information with respect  to the Company and its
affiliates set forth in  this Offer to Purchase  has been derived from  publicly
available information.

    8.  CERTAIN INFORMATION CONCERNING PURCHASER, PARENT AND INTERNATIONAL.

    PURCHASER.   Purchaser,  a newly incorporated  Pennsylvania corporation, has
not conducted any business other than  in connection with the Offer, the  Merger
Agreement and the Tender and Option Agreement. All of the issued and outstanding
shares  of  capital stock  of Purchaser  are beneficially  owned by  Parent. The
principal executive  offices of  Purchaser are  located at  One Baxter  Parkway,
Deerfield,  Illinois 60015. The telephone number of Purchaser at such offices is
(708) 948-2000.

    PARENT.  Parent is a  Delaware corporation. The principal executive  offices
of  Parent are  located at  One Baxter  Parkway, Deerfield,  Illinois 60015. The
telephone number of  Parent at  such offices is  (708) 948-2000.  Parent is  the
principal U.S. operating subsidiary of International.

    INTERNATIONAL.    International  is a  Delaware  corporation.  The principal
executive offices of International are located at One Baxter Parkway, Deerfield,
Illinois 60015. The telephone number of  International at such offices is  (708)
948-2000.  Through its  subsidiaries, International is  the leading manufacturer
and marketer  of  health-care products  and  services in  nearly  100  countries
worldwide.  International  concentrates  research  and  development  programs in
biotechnology,  cardiovascular  medicine,  renal  therapy  and  related  medical
fields.

    On  November 28, 1995,  International announced a  plan to spin  off in 1996
certain of its  assets in order  to create  two public companies:  (i) a  global
medical-technology   company,  which  will  continue  to  be  known  as  "Baxter
International,   Inc."    and    consist    of    International's    high-growth
medical-technology  and international businesses, including Biotechnology, Renal
Therapy, Cardiovascular Medical, International Hospital and Intravenous Systems,
and  (ii)  a  health-care  cost  management  company,  which  will  consist   of
International's   cost  management,  U.S.  distribution  and  surgical  products
operations. It is currently contemplated that, following the acquisition of  the
Company  by  Parent  and  Purchaser,  the  Company  will  be  part  of  the  new
medical-technology company.

    International is subject  to the information  and reporting requirements  of
the  Exchange Act and is required to file reports and other information with the
Commission relating  to its  business, financial  condition and  other  matters.
Information,  as of  particular dates, concerning  International's directors and
officers, their  remuneration,  stock options  granted  to them,  the  principal
holders of International's securities, any material interests of such persons in
transactions with International and other matters is required to be disclosed in
proxy  statements distributed to International's shareholders and filed with the
Commission. These  reports, proxy  statements and  other information  should  be
available  for inspection and copies may be  obtained from the Commission in the
same manner as set  forth for the Company  in Section 7. International's  Common
Stock  is listed  on the  New York Stock  Exchange, Inc.  ("NYSE"), and reports,
proxy statements and other information  concerning International also should  be
available  for inspection at the offices of the NYSE, 20 Broad Street, New York,
New York 10005.

    Set forth  below  are  certain selected  consolidated  financial  data  with
respect  to International  and its  subsidiaries for  International's last three
fiscal years, excerpted or derived  from audited financial statements  presented
in  International's 1994  Annual Report to  Shareholders and  from the unaudited
financial statements contained in International's Quarterly Report on Form  10-Q
for  the  fiscal  quarter  ended  September 30,  1995,  in  each  case  filed by
International with the Commission.  More comprehensive financial information  is
included  in such  reports and other  documents filed by  International with the
Commission. The financial information  summary set forth  below is qualified  in
its  entirety by reference to those reports  and other documents which have been
filed with the Commission  and all the financial  information and related  notes
contained therein.

                                       11
<PAGE>
                   BAXTER INTERNATIONAL INC. AND SUBSIDIARIES
                    SELECTED CONSOLIDATED FINANCIAL DATA (1)
                    (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                   NINE MONTHS ENDED
                                                                     SEPTEMBER 30,          YEAR ENDED DECEMBER 31,
                                                                  --------------------  -------------------------------
                                                                    1995       1994       1994       1993       1992
                                                                  ---------  ---------  ---------  ---------  ---------
                                                                      (UNAUDITED)
<S>                                                               <C>        <C>        <C>        <C>        <C>
INCOME STATEMENT DATA:
Net sales.......................................................  $   7,239  $   6,824  $   9,324  $   8,879  $   8,471
Income (loss) before income taxes...............................        660        565        801       (330)       753
Net income (loss)...............................................        473        424        596       (198)       441

PER SHARE INFORMATION:

PRIMARY EARNING (LOSS) PER COMMON SHARE
Continuing operations...........................................  $    1.70  $    1.52  $    2.13  $    (.97) $    1.99
Net income......................................................       1.70       1.52       2.13       (.72)      1.56

FULLY DILUTED EARNINGS (LOSS) PER COMMON SHARE
Continuing operations...........................................       1.67       1.51       2.11       (.97)      1.97
Net income......................................................       1.67       1.51       2.11       (.72)      1.54

AVERAGE NUMBER OF COMMON SHARES AND EQUIVALENTS OUTSTANDING
Primary.........................................................        278        279        280        277        279
Fully diluted...................................................        283        281        282        277        282
</TABLE>

<TABLE>
<CAPTION>
                                                                                           AT DECEMBER 31,
                                                                                   -------------------------------
                                                                                     1994       1993       1992
                                                                 AT SEPTEMBER 30,  ---------  ---------  ---------
                                                                       1995
                                                                 ----------------
                                                                   (UNAUDITED)
<S>                                                              <C>               <C>        <C>        <C>
BALANCE SHEET DATA:
Working capital................................................     $    1,507     $   1,574  $   1,489  $   1,221

Total assets...................................................         10,276        10,002     10,545      9,155
Goodwill and other intangible assets...........................          2,218         2,290      2,490      2,488
Total assets excluding goodwill and other intangible assets....          8,058         7,712      8,055      6,667

Notes payable to banks.........................................             96           131        271        351
Current maturities of long-term debt and lease obligations.....            163           400        551        149
Long-term debt and lease obligations...........................          2,358         2,341      2,800      2,368
Total debt.....................................................          2,617         2,872      3,622      2,868

Shareholders' equity...........................................          3,552         3,720      3,185      3,795
</TABLE>

(1) No pro forma financial information is currently available for International
    as a result of the November 28, 1995 announcement. See "International"
    above.

    The  name, citizenship, business address, principal occupation or employment
and five-year  employment  history  for  each of  the  directors  and  executive
officers  of Purchaser,  Parent and  International are  set forth  in Schedule I
hereto.

    Except as described in  this Offer to Purchase,  (i) none of  International,
Purchaser,  Parent or, to the best knowledge of Purchaser and Parent, any of the
persons listed in  Schedule I  to this  Offer to  Purchase or  any associate  or
majority-owned  subsidiary  of International,  Purchaser, Parent  or any  of the
persons so listed  beneficially owns or  has any right  to acquire, directly  or
indirectly, any Shares and (ii) none of International,

                                       12
<PAGE>
Purchaser, Parent nor, to the best knowledge of Purchaser and Parent, any of the
persons  or entities  referred to above  nor any director,  executive officer or
subsidiary of any of  the foregoing has effected  any transaction in the  Shares
during the past 60 days.

    Except  as provided in the Merger Agreement, the Tender and Option Agreement
and as otherwise  described in this  Offer to Purchase,  none of  International,
Purchaser,  Parent or,  to the  best knowledge  of International,  Purchaser and
Parent, any of the persons listed in  Schedule I to this Offer to Purchase,  has
any  contract, arrangement, understanding or  relationship with any other person
with respect to any  securities of the Company,  including, but not limited  to,
any contract, arrangement, understanding or relationship concerning the transfer
or  voting of such securities, joint ventures, loan or option arrangements, puts
or calls,  guaranties  of  loans,  guaranties against  loss  or  the  giving  or
withholding  of proxies. Except  as set forth  in this Offer  to Purchase, since
October 1,  1992, none  of  International, Purchaser,  Parent  or, to  the  best
knowledge  of International, Purchaser and Parent,  any of the persons listed on
Schedule I hereto,  has had any  business relationship or  transaction with  the
Company  or  any of  its  executive officers,  directors  or affiliates  that is
required to  be reported  under  the rules  and  regulations of  the  Commission
applicable  to the Offer. Except  as set forth in  this Offer to Purchase, since
October 1,  1992, there  have  been no  contacts, negotiations  or  transactions
between  any of  International, Purchaser,  Parent, or  any of  their respective
subsidiaries, or, to the best knowledge of International, Purchaser and  Parent,
any  of the persons listed in  Schedule I to this Offer  to Purchase, on the one
hand, and the Company or its affiliates, on the other hand, concerning a merger,
consolidation or acquisition, tender offer  or other acquisition of  securities,
an  election of directors  or a sale or  other transfer of  a material amount of
assets. Since  October 1,  1992, Parent  and  its affiliates  have sold  to  the
Company   hospital  supply   products  consisting   primarily  of  miscellaneous
cardiovascular products and  supplies in  the following  approximate amounts  in
each  calendar year: 1995 to date, $2.0  million; 1994, $1.9 million; 1993, $1.4
million; 1992, $1.1 million.

    9.  SOURCE  AND AMOUNT  OF FUNDS.   The total  amount of  funds required  by
Purchaser  and  Parent to  consummate the  Offer and  the Merger  (including the
cash-out of stock options)  and to pay related  fees and expenses (inclusive  of
estimated expenses of the Company) is estimated to be approximately $84 million.
Purchaser will obtain all of such funds from Parent or its affiliates, including
without  limitation International.  International will cause  the funds required
for the foregoing  transactions to be  made available, and  Parent will  provide
such funds for the foregoing transactions from its working capital.

    10.   BACKGROUND OF THE  OFFER; CONTACTS WITH THE  COMPANY.  INFORMATION SET
FORTH BELOW REGARDING THE  COMPANY, OR DISCUSSIONS  TO WHICH REPRESENTATIVES  OF
INTERNATIONAL,  PARENT AND PURCHASER WERE NOT  PARTICIPANTS, WAS PROVIDED BY THE
COMPANY.

    In early 1994, Mr. Olav  Bergheim (at the time  the Group Vice President  of
Parent  and President of  Parent's Cardiovascular Group) and  Mr. R. King Nelson
(President of  Parent's Bentley  division), approached  the Company  to  discuss
Parent's  interest in pursuing a possible  business transaction with the Company
in  connection  with  a   plan  to  combine   certain  operations  of   Parent's
cardiovascular  supply business  with that  of certain  other perfusion services
providers, including  the  Company.  Thereafter, these  individuals  engaged  in
preliminary  discussions with  Mr. Dunaway and  another officer  of the Company,
concerning Parent's plan, and with Mr. Robert Nielson, a representative of Price
Waterhouse, financial advisor to  Parent. In April 1994  Parent and the  Company
entered into a mutual confidentiality agreement in order that both parties could
exchange  confidential information  to explore the  merits of  Parent's plan. In
August 1994,  Messrs. Bergheim  and Nelson,  Mr.  John H.  Kehl, Jr.,  a  senior
officer  of Parent's Cardiovascular Group, Mr. Dunaway and two other officers of
the Company, met  during a  visit of  a manufacturing  facility affiliated  with
Parent  in Puerto Rico.  Thereafter, the parties determined  not to proceed with
any such transaction at that time.

    In April 1995, following Parent's acquisition of another company engaged  in
the  perfusion business, Mr. Michael A. Mussallem, the then Group Vice President
of Parent and President of Parent's Cardiovascular Group, contacted Mr.  Dunaway
in  order  to reiterate  Parent's interest  in engaging  in a  possible business
combination transaction with the  Company and to  determine whether the  Company
would  have an interest in reopening discussions about a possible acquisition of
the Company by Parent for cash. Shortly thereafter,

                                       13
<PAGE>
Mr. Mussallem and Mr. Lester B. Knight, Executive Vice President of Parent,  met
with  Mr. Dunaway to discuss generally  the Company's business and prospects. In
early May 1995 the  parties discussed the possibility  of providing Parent  with
certain information about the Company in connection with their discussions. Over
the  next few months the parties  periodically discussed a number of alternative
transaction structures and possible related value ranges but could not agree  on
a transaction structure or price.

    On  July 20, 1995 the  Company reported its financial  results for the third
quarter of fiscal 1995.  Among other things, the  Company reported a decline  in
its net income and earnings per share. In particular, the Company's earnings per
share  for the third quarter  and the first nine  months of fiscal 1995 declined
54% and  19%, respectively,  from earnings  per share  for the  same periods  in
fiscal  1994.  The Company  attributed the  decline in  net income  primarily to
continued losses from its physician  office laboratory operations (conducted  by
POL) and lower-than-anticipated income from operations of the perfusion business
primarily due to continuing pricing pressures on sales of disposable supplies.

    From  July  17  through  August  6,  1995,  there  were  numerous  telephone
conversations between legal counsel and  financial advisors for both Parent  and
the  Company,  with  Parent's  representatives seeking  a  determination  of the
Company's interest in engaging in  discussions regarding a possible  transaction
with Parent.

    On  August 7, 1995 the Board met with legal and financial advisors to review
strategic  alternatives  and   other  matters,   including  Parent's   expressed
interests.  The Board  concluded that,  while no  decision had  been made  as to
whether the  Company should  be sold,  it  was interested  in receiving  a  more
detailed explanation of what Parent was considering with respect to the Company.

    On  August 11, 1995 Parent delivered to  the Company an offer to acquire all
of the outstanding shares of capital stock of the Company for $14 per share in a
transaction proposed to be structured as a tender offer followed by a merger  at
the  same price per share. The offer  was conditioned upon it not being publicly
disclosed by  the  Company. Other  proposed  terms  included (i)  an  option  to
purchase  Mr. Dunaway's shares  at the same price,  (ii) the Company's agreement
not to "shop" the proposal, (iii) a  termination fee payable to Parent and  (iv)
the  right of Parent to match any offers  that the Company might receive for the
entire Company or the perfusion business.

    On August 11 and August 15, 1995 the Board met by conference telephone calls
to consider Parent's proposal and determined  that, while it was not  interested
in pursuing a possible transaction at the price per share proposed by Parent, it
might be willing to consider a possible transaction at a higher price.

    From  August 15  through August  18, 1995,  representatives of  both parties
continued telephone conversations, with  the Company's advisors suggesting  that
Parent  agree to  a confidentiality  and standstill  agreement in  order for the
Company to share with Parent the reasons why the Company believed that a  higher
price  was warranted before  further discussions could  take place. During these
conversations, legal counsel for  Parent advised legal  counsel for the  Company
that  Parent was not interested in acquiring POL and suggested ways in which POL
could be spun off from the Company  or otherwise disposed of in order to  enable
Parent to proceed. On August 18, 1995 representatives of CS First Boston advised
representatives  of Dain Bosworth  that Parent would  not sign a confidentiality
agreement and standstill agreement until the Company responded satisfactorily to
certain inquiries, including whether Mr. Dunaway was willing to acquire POL  and
if so, for what price.

    The  Board of Directors of  the Company considered this  matter at a special
meeting held by conference telephone call on August 19, 1995. Legal counsel  was
directed  to respond to Parent's inquiries. In particular, the Board declined to
comment with respect to the  value of POL or  whether Mr. Dunaway would  acquire
POL.  Thereafter,  conversations  continued  between  the  legal  and  financial
advisors of Parent and the Company.

    At Parent's request, on  August 30, 1995 Messrs.  Dunaway and Mussallem  and
their  respective legal  advisors met  to discuss  alternative structures  for a
possible transaction and other methods by which Parent could increase the  price
per  share  it  might be  willing  to  pay to  acquire  the  Company's perfusion
business.

                                       14
<PAGE>
Among other things, the alternatives  discussed included the possibility of  the
Company  selling or engaging in a spinoff  of its subsidiary, POL, in connection
with a possible acquisition of the rest of the Company's business by Parent.  No
agreement was reached by the parties at this time.

    During the first week of September, 1995 Mr. Mussallem contacted Mr. Dunaway
to  further explore potential ways for Parent  to increase the value it might be
willing to pay in a possible acquisition  of the Company. During the next  week,
Mr.  Mussallem  again  contacted  Mr. Dunaway  and  indicated  that,  subject to
completion of Parent's due diligence review of the Company, it might be  willing
to  consider acquiring  all of  the outstanding shares  of capital  stock of the
Company in a transaction similar to that contemplated by the Offer and Merger at
$17 per share, and that Parent would  not require that POL be disposed of  prior
to  a transaction with Parent. Mr. Dunaway  agreed to take the information under
advisement and respond at a future time,  but did not indicate whether any  such
transaction  or  consideration  might be  acceptable.  Nonetheless,  the parties
decided to  direct their  legal representatives  to begin  discussing the  other
terms of a possible transaction.

    Over  the next two  weeks the parties' legal  advisors discussed the general
terms of the Merger Agreement and the Tender and Option Agreement other than the
consideration payable  thereunder,  including (i)  the  option to  purchase  Mr.
Dunaway's  shares at the same price, (ii)  the Company's agreement not to "shop"
the possible transaction,  (iii) certain rights  of the Company  related to  the
exercise  of the  Board's fiduciary  duties, (iv)  a termination  fee payable to
Parent, (v) the right of Parent to  match any offers that might be received  for
the  Company, and  (vi) certain employee  matters. Parent's  legal advisors also
raised the possibility of Parent  receiving certain nonpublic information  about
the Company, and the Company's legal advisors responded that Parent's agreements
to enter into a confidentiality and standstill agreement would be a condition to
providing any such nonpublic information.

    On  September 28, 1995 Mr. Dunaway, Mr. Mussallem and their respective legal
advisors again  met to  discuss a  possible transaction  including, among  other
things,  the terms of the Merger Agreement,  the Tender and Option Agreement and
other matters relating to a  possible transaction. Mr. Mussallem indicated  that
Parent  might be willing to engage in a transaction similar to that contemplated
by the Offer and the Merger at $17.50 per share provided that all other material
terms were as Parent had proposed and subject to satisfactory completion of  due
diligence with respect to nonpublic information as yet to be provided to Parent.
No agreement was reached, but Mr. Dunaway indicated a willingness to present the
proposal to the Board if legal counsel could reach consensus on various terms of
a  possible  proposal.  The  parties  directed  their  legal  representatives to
continue reviewing the possible terms.

    On October 16, 1995, Parent and the Company entered into the Confidentiality
Agreement (as hereinafter defined) and, commencing on October 17, 1995,  members
of  Parent's senior  management conducted a  due diligence  review of non-public
information regarding the Company at the Company's offices.

    On the afternoon  of October 20,  1995, legal counsel  for Parent  contacted
legal  counsel for the  Company and indicated  that the results  of Parent's due
diligence had  caused  it to  reconsider  its decision  to  acquire all  of  the
Company,  and that Parent  was prepared to  proceed only if  POL was disposed of
prior to the completion of any transaction with Parent. The suggestion was  made
by  Parent that Mr. Dunaway  be required to enter into  an agreement to agree to
acquire POL on  terms satisfactory to  Parent, if  no higher offer  for POL  was
received,  and that this would be  a condition precedent to Parent's willingness
to proceed with the transaction.

    A special meeting  of the  Board was held  by conference  telephone call  on
October  24 to discuss Parent's requirements.  Alternatives with respect to POL,
including a possible  spin-off, were  discussed. Mr. Dunaway  advised the  Board
that  he was not interested in acquiring POL on the terms that had been proposed
by Parent. It was  determined that Parent  should be notified  of this fact  and
told  that the Board was willing to  move forward on the original proposal. Upon
receiving this message from  counsel to the  Company, representatives of  Parent
advised  the Company's counsel  that Parent was  not willing to  proceed on that
basis.

    Accordingly, from  October 24  through  November 3,  1995, Mr.  Dunaway  and
representatives of Parent discussed possible terms of the purchase of POL by Mr.
Dunaway. On November 3, 1995, a special meeting of the Board of Directors of the
Company  was held by conference telephone  call, wherein Mr. Dunaway advised the
Board of the  terms under  which he  would be  willing to  acquire POL,  thereby
allowing Parent and

                                       15
<PAGE>
the Company to move forward with discussions concerning the larger proposal. The
Company  formed a Special Committee, consisting of Messrs. Rees and McFarlin, to
consider the terms of the  POL acquisition by Mr.  Dunaway, and Mr. Dunaway  was
directed to retain separate legal counsel to act on his behalf.

    During  the succeeding  three weeks, the  parties negotiated the  terms of a
possible sale of  POL to  Mr. Dunaway  or his designee  in the  event no  better
alternative  became available, and agreed that the  purchase price to be paid by
Mr. Dunaway would be $4 million, subject to adjustment, consisting of $1 million
in cash, subject  to adjustment,  and $3  million in  an unsecured  subordinated
ten-year note bearing interest at a prime rate. See Section 11. In the event the
Company identified a purchaser of the POL for a cash purchase price greater than
$4  million, then  the Company  would be  free to  accept such  proposal and the
proceeds in excess of $4 million (after deduction for costs and expenses of  the
sale  and any financial  advisory fees) would  be paid as  a dividend to Company
shareholders prior to consummation of the Offer. In the event such a third party
acquiror was identified during the initial term of the Offer, but a  transaction
could  not be consummated within  that time frame, the  Company could request an
extension of the initial term of the Offer for an additional 15 business days to
allow for consummation of such a proposal.

    During the same period, Mr.  Dunaway retained separate counsel to  negotiate
the  terms of  the purchase  proposal and  the Company  and Parent  continued to
negotiate the remaining terms of the  agreement between Parent and the  Company.
Negotiations  continued  through November  21,  1995, at  which  time definitive
documentation for all  of the  transactions contemplated by  the agreements  was
agreed to by the respective parties thereto.

    On  November 21, 1995, the Company's Board  met to receive a report from the
Special Committee, consider Parent's proposal and other alternatives. The  terms
of  the proposed transaction and related  merger agreement were presented to and
reviewed by  the  Board. Dain  Bosworth  made  presentations to  the  Board  and
delivered  its opinion that, as of November  21, 1995, the $17.50 per share cash
consideration to be  received by  shareholders of  the Company  pursuant to  the
Offer and the Merger is fair to the shareholders of the Company from a financial
point of view. The Board also discussed the terms of the transaction pursuant to
which  Mr. Dunaway had agreed  to acquire POL in the  event that the Company was
unable to find another purchaser at a  higher price. It was also noted that  the
press  release announcing the transaction with  Parent would expressly note that
the Board was marketing the sale of POL. Mr. and Mrs. Dunaway were excused  from
the  meeting while the  Special Committee discussed the  Parent's offer, and the
terms of  the POL  Put Option,  the  Tender and  Option Agreement,  the  Dunaway
Consulting  Agreement  (as  hereinafter defined)  and  Mrs.  Dunaway's Severance
Agreement (as hereinafter defined). The  full Board then discussed the  proposed
Merger  Agreement and reviewed proposed  resolutions related to the transaction.
The Special Committee unanimously  recommended that the  Board proceed with  the
transactions as presented to the meeting.

    After  discussion  and  further analysis,  the  Company's  Board unanimously
decided to proceed with the sale of the Company and to accept Parent's proposal,
and it  then approved  the Merger  Agreement and  the transactions  contemplated
thereby  and unanimously recommended that the shareholders of the Company accept
the Offer and tender their shares pursuant thereto. With respect to the  Merger,
the  Board  unanimously recommended  that, if  shareholder  vote is  required by
applicable law, the shareholders  of the Company vote  in favor of approval  and
adoption of the Merger Agreement and the Merger.

    On  November  22,  1995,  Parent,  Purchaser  and  the  Selling Shareholders
executed and delivered the  Tender and Option  Agreement, and Parent,  Purchaser
and  the Company  executed and delivered  the Merger Agreement.  On November 22,
1995, Parent  and  the Company  issued  a  joint press  release  announcing  the
execution of the Merger Agreement and Tender and Option Agreement. The Purchaser
commenced the Offer on November 29, 1995.

11.  PURPOSE OF THE OFFER; PLANS FOR THE COMPANY; MERGER AGREEMENT; TENDER AND
OPTION AGREEMENT; AND OTHER AGREEMENTS.

    PURPOSE  OF THE  OFFER.  The  purpose of  the Offer, the  Merger, the Merger
Agreement and the  Tender and Option  Agreement is to  enable Parent to  acquire
control  of  the Board  and  the entire  equity  interest in  the  Company. Upon
consummation of the Merger, the Company will become a wholly owned subsidiary of
Parent. The Offer is being made pursuant to the Merger Agreement.

                                       16
<PAGE>
    PLANS FOR THE COMPANY.  As promptly as practicable following the purchase of
and payment for Shares under the Offer, Parent intends (i) to exercise its right
under the Merger Agreement to designate  such number of directors for the  Board
as  it is then entitled to designate and (ii) in the event Purchaser acquires at
least 80% of  the then outstanding  Shares, to  cause a "short  form" merger  of
Purchaser  and the Company under Pennsylvania Law. It is Purchaser's expectation
that those individuals so elected or appointed to the Board will not receive any
compensation for  services rendered  in such  capacity. It  is Parent's  current
intention,  in the event that it obtains  control of the Board, to terminate the
service of Mr. and Mrs. Dunaway as officers of the Company. In the event of such
termination, Mr. Dunaway would remain with the Company as a consultant under the
Dunaway Consulting  Agreement and  Mrs.  Dunaway would  be entitled  to  receive
severance payments pursuant to her Severance Agreement, both of which agreements
are  more  fully described  in the  Schedule 14D-9  enclosed herewith.  See also
"Benefit Plans  and Certain  Contracts, Consulting  and Severance  Arrangements"
below.

    It  is expected  that, initially following  the Merger, except  as set forth
below, the business and operations of the Company will be conducted in a  manner
substantially  similar to  how they  are conducted  currently. However,  it is a
condition to the Merger that POL and  the related business be sold prior to  the
Merger.  See  "Merger Agreement"  below. In  addition,  Parent will  continue to
evaluate the business and operations of  the Company during the pendency of  the
Offer  and after the consummation of the Offer and the Merger and will take such
further actions as it deems  appropriate under the circumstances then  existing.
Following  the  Merger,  Parent  plans  to  investigate  combining  its existing
perfusion business with the Company, but  no decision has yet been made  whether
to merge or otherwise combine such businesses.

    Also  following  the  Merger,  Parent  intends to  pursue  the  sale  of the
Company's off-road division and certain other assets unrelated to the  perfusion
business.  Mr. Dunaway has indicated that he  might be interested in making such
an acquisition, but no proposal  has been made and the  parties do not have  any
agreement, arrangement or understanding with respect thereto.

    MERGER  AGREEMENT.  THE FOLLOWING IS A  SUMMARY OF CERTAIN PROVISIONS OF THE
MERGER AGREEMENT. THE SUMMARY IS QUALIFIED  IN ITS ENTIRETY BY REFERENCE TO  THE
FULL  TEXT OF THE MERGER AGREEMENT WHICH IS INCORPORATED HEREIN BY REFERENCE AND
A COPY OF WHICH HAS BEEN FILED WITH THE COMMISSION AS AN EXHIBIT TO THE SCHEDULE
14D-1. THE MERGER AGREEMENT MAY  BE EXAMINED AND COPIES  MAY BE OBTAINED AT  THE
PLACE AND IN THE MANNER SET FORTH IN SECTION 8 OF THIS OFFER TO PURCHASE.

    THE  OFFER.  The Merger Agreement  provides that Purchaser will commence the
Offer and that, upon the terms and  subject to the prior satisfaction or  waiver
of  the conditions of the  Offer, Purchaser will accept  for payment and pay for
Shares tendered as soon as  practicable after it is  legally permitted to do  so
under  applicable law. The  Merger Agreement provides  that, without the written
consent of the Company,  Purchaser will not decrease  the Offer Price,  decrease
the  number of Shares sought, change the form of the consideration to be paid in
the Offer or amend any other condition of the Offer in any manner adverse to the
holders of  Shares  (other  than  with  respect  to  the  Minimum  Condition  or
insignificant  changes  or  amendments)  except that  if  prior  to  the initial
scheduled expiration date,  the Company will  have received a  Higher POL  Offer
that the Company intends to accept, then at the Company's request Purchaser will
extend the Offer for fifteen business days; and, further, that if on the initial
scheduled Expiration Date all conditions of the Offer have not been satisfied or
waived,  the Offer  may be  extended from  time to  time until  February 1, 1996
without the consent of the Company.  In addition, the Merger Agreement  provides
that,  without the consent of the Company,  the Offer Price may be increased and
the Offer may be extended to the extent required by law in connection with  such
an increase.

    THE  MERGER.  The  Merger Agreement provides  that subject to  the terms and
conditions thereof,  and pursuant  to Pennsylvania  Law, at  the Effective  Time
Purchaser  will be merged with and into the  Company. As a result of the Merger,
the separate corporate existence  of Purchaser will cease  and the Company  will
continue as the Surviving Corporation.

    The respective obligations of Parent and Purchaser, on the one hand, and the
Company,  on the other hand, to effect  the Merger are subject to the conditions
that: (i) all authorizations, consents, orders or approvals of, or  declarations
or  filings  with, or  expiration of  waiting periods  imposed by,  any Federal,
state,

                                       17
<PAGE>
local  or  foreign  governmental  or  regulatory  authority  necessary  for  the
consummation  of  the Merger  and the  transactions  contemplated by  the Merger
Agreement will have been filed, occurred or been obtained and will be in  effect
at  the  Effective  Time;  (ii)  no  temporary  restraining  order,  preliminary
injunction or  permanent  injunction  or other  order  precluding,  restraining,
enjoining,  preventing or prohibiting  the consummation of  the Merger will have
been issued by  any Federal,  state or foreign  court or  other governmental  or
regulatory  authority and  remain in effect;  (iii) no Federal,  state, local or
foreign statute, rule or regulation will  have been enacted which prohibits  the
consummation of the Merger or would make the consummation of the Merger illegal;
and  (iv)  the Merger  Agreement  will have  been  approved and  adopted  by the
affirmative vote  required  of the  shareholders  of the  Company,  if  required
pursuant  to the Company's articles of incorporation and applicable Pennsylvania
Law in  order to  consummate the  Merger. In  addition, the  obligations of  the
Company  to effect the Merger are also subject to the satisfaction or waiver, on
or prior to the date of the closing  of the Merger (the "Closing Date"), of  the
additional  condition  that  Parent,  Purchaser or  their  affiliates  will have
purchased Shares (including without limitation the Shares subject to the  Tender
and  Option Agreement) pursuant to the Offer or the Tender and Option Agreement.
The obligations of Parent and Purchaser to effect the Merger are also subject to
the satisfaction or waiver, on or prior  to the Closing Date, of the  additional
condition that the transactions contemplated by the POL Agreement will have been
consummated or POL will have been sold pursuant to a Higher POL Offer.

    The  Merger Agreement provides  that at the Effective  Time, each issued and
outstanding Share (other than Shares that  are owned by the Company as  treasury
stock  and  any Shares  owned by  Parent,  Purchaser or  any other  wholly owned
subsidiary of Parent)  will be  converted into the  right to  receive the  Offer
Price, without interest.

    Pursuant  to  the Merger  Agreement, each  issued  and outstanding  share of
common stock, par value $.01 per share, of Purchaser will be converted into  one
fully   paid  and  non-assessable  share  of   common  stock  of  the  Surviving
Corporation.

    THE COMPANY'S  BOARD  OF DIRECTORS.    The Merger  Agreement  provides  that
promptly  upon  the later  of (i)  the purchase  of and  payment for  any Shares
(including without  limitation  all Shares  subject  to the  Tender  and  Option
Agreement)  by Purchaser or any other subsidiary of Parent pursuant to the Offer
or the Tender  and Option Agreement  and (ii)  the expiration or  waiver of  the
Company's  right to terminate the Merger Agreement in the event that the Company
accepts an Acceptable Offer  prior to the  later of (x)  the purchase of  Shares
pursuant  to the Offer  or Tender and  Option Agreement or  (y) January 3, 1996,
Parent will be entitled to designate such number of directors, rounded up to the
next whole number, on the Board as is  equal to the product of the total  number
of  directors  then  serving on  the  Board  (which, immediately  prior  to such
calculation, may not  consist of  more than  four directors)  multiplied by  the
ratio  of the aggregate number of Shares beneficially owned by Parent, Purchaser
and any of their affiliates to the total number of Shares then outstanding.  The
Company  must, upon  request of  Purchaser, take  all action  necessary to cause
Parent's designees to be  elected or appointed to  the Board, including  without
limitation  increasing  the size  of the  Board or,  at the  Company's election,
securing the  resignations of  such  number of  its  incumbent directors  as  is
necessary  to enable  Parent's designees  to be so  elected or  appointed to the
Board, and must cause Parent's  designees to be so  elected or appointed. It  is
Purchaser's  expectation that those  individuals so elected  or appointed to the
Board will not receive any compensation for services rendered in such  capacity.
At  such  time, the  Company will  also  cause persons  designated by  Parent to
constitute the same percentage (rounded  up to the next  whole number) as is  on
the  Board of (i) each committee of the  Board, (ii) each board of directors (or
similar body) of  each subsidiary of  the Company and  (iii) each committee  (or
similar  body) of each such board. In addition, Parent and Purchaser have agreed
that, until the Effective Time, neither they nor their affiliates will take  any
action  as directors  or shareholders  of the  Company to  cause the  removal of
Laverne W. Rees and Whitney A. McFarlin, independent directors of the Company.

    The Merger Agreement further  provides that the  Company will promptly  take
all  actions required  pursuant to  Section 14(f) of  the Exchange  Act and Rule
14f-1 promulgated thereunder, including mailing  to shareholders as part of  the
Company's Schedule 14D-9 the information required by such Section 14(f) and Rule
14f-1,  as is necessary to enable Parent's designees to be elected to the Board.
From and after the time, if  any, that Parent's designees constitute a  majority
of the Board, any amendment of the Merger Agreement,

                                       18
<PAGE>
any  termination of the Merger  Agreement by the Company,  any extension of time
for performance of any of the obligations of Parent or Purchaser thereunder, any
waiver of  any condition  or any  of the  Company's rights  thereunder or  other
action  by the  Company thereunder (other  than as specifically  provided in the
Merger Agreement) may be effected only if  the action is approved by a  majority
of the directors of the Company then in office who were directors of the Company
on  the date thereof;  PROVIDED, that if  there will be  no such directors, such
actions may be effected by majority vote of the entire Board.

    SHAREHOLDERS MEETING.  Pursuant to  the Merger Agreement, the Company  will,
if  required by applicable law in order to consummate the Merger: (i) duly call,
give notice of,  convene and  hold a special  meeting of  its shareholders  (the
"Special  Meeting") as soon as practicable  following the acceptance for payment
and purchase of Shares by Purchaser pursuant to the Offer, or the termination of
the Offer, for  the purpose  of considering and  taking action  upon the  Merger
Agreement;  (ii) prepare  and file  with the  Commission a  preliminary proxy or
information statement relating to  the Merger and the  Merger Agreement and  use
its  reasonable efforts (x) to obtain and furnish the information required to be
included by the  Commission in the  Company Proxy Statement  (as defined  below)
and, after consultation with Parent, to respond promptly to any comments made by
the  Commission with respect  to the preliminary  proxy or information statement
and cause  a  definitive proxy  or  information statement  (the  "Company  Proxy
Statement")  to be mailed  to its shareholders  and (y) to  obtain the necessary
approvals of the Merger and the Merger Agreement by its shareholders; and  (iii)
include  in  the Company  Proxy  Statement the  recommendation  of the  Board of
Directors that shareholders of the Company vote in favor of the approval of  the
Merger  and the adoption of  the Merger Agreement unless,  in the opinion of the
Board of Directors after consultation with independent counsel, the inclusion of
such recommendation  would  be  inconsistent with  its  fiduciary  duties  under
applicable  law. Purchaser has  agreed that it  will, and will  cause any of its
permitted assignees  to, vote  all of  the Shares  then owned  by it  which  are
entitled  to vote in favor of the approval of the Merger and the adoption of the
Merger Agreement.

    The Merger Agreement provides that in the event Purchaser acquires at  least
80%  of  the  outstanding  Shares,  the  parties  will  take  all  necessary and
appropriate  action  to  cause  the  Merger  to  become  effective  as  soon  as
practicable   after   such  acquisition,   without   approval  of   the  Company
shareholders.

    INTERIM OPERATIONS.  In the Merger  Agreement, the Company has agreed  that,
except  as expressly  contemplated therein  or as  agreed in  writing by Parent,
after November 22, 1995, and  prior to the time  the directors of the  Purchaser
have been elected to the Board, as follows:

        (i)  the business of the Company and its subsidiaries will be carried on
    in the usual, regular and ordinary course, in substantially the same  manner
    as  previously  conducted, and  the Company  and  its subsidiaries  will use
    reasonable efforts consistent  with past practice  and policies to  preserve
    intact  their business organizations,  keep available the  services of their
    officers and  employees  and  preserve  their  existing  relationships  with
    customers, suppliers, lessors, lessees, creditors and others having business
    dealings  with them,  and the Company  will continue to  maintain a standard
    system of accounting established and administered in accordance with  United
    States generally accepted accounting principles ("GAAP");

        (ii)  the Company  will not,  and will  not cause  or permit  any of its
    subsidiaries to, (a)  declare, set  aside or pay  any dividends  on or  make
    other  distributions  in respect  of any  shares of  its capital  stock, (b)
    split, combine or  reclassify any shares  of its capital  stock or issue  or
    authorize  the issuance of any other securities in respect of, in lieu of or
    in substitution for any shares of its capital stock or (c) propose to do any
    of the  foregoing.  Notwithstanding the  foregoing,  nothing in  the  Merger
    Agreement  will prevent the Company, upon the consummation by the Company of
    a transaction for a  Higher POL Offer  in accordance with  the terms of  the
    Merger  Agreement, from  declaring and paying  a dividend in  respect of its
    shares of Common Stock  (payable to the Company's  record holders of  Common
    Stock  immediately prior  to the  earlier of  (1) Purchaser's  acceptance of
    Shares for  payment  under  the Offer  or  (2)  the Effective  Time)  in  an
    aggregate  amount equal to the amount of the excess of the net cash proceeds
    actually received by the Company in the transaction for the Higher POL Offer
    (after taking into  account all  out-of-pocket costs  and expenses  directly
    related to such transaction incurred after

                                       19
<PAGE>
    November  22, 1995, including  without limitation the  fees and expenses, to
    the extent reimbursable  by the  Company), of Dunaway  Holdings incurred  in
    connection  with the POL  Agreement and of Dain  Bosworth in connection with
    marketing POL) over  the $4 million  to be  received by the  Company in  the
    transaction  with Dunaway Holdings  contemplated by the  POL Agreement as of
    November 22, 1995;

       (iii) the Company  will not,  and will  not cause  or permit  any of  its
    subsidiaries  to, issue, pledge,  deliver, sell or  transfer or authorize or
    propose the issuance, pledge, delivery, sale or transfer of, or  repurchase,
    redeem   or  otherwise  acquire  directly  or  indirectly,  or  propose  the
    repurchase, redemption or other acquisition of, any shares of capital  stock
    of any class of the Company or its subsidiaries, or any options, warrants or
    other  rights exercisable for or securities convertible into or exchangeable
    for, any such shares (or enter  into any agreements, arrangements, plans  or
    understandings with respect to any of the foregoing), other than pursuant to
    the  exercise of  outstanding options  pursuant to  the terms  thereof as of
    November 22, 1995  or, solely  with respect to  POL, the  POL Agreement.  No
    "purchase  period" as defined in the  Company's Employee Stock Purchase Plan
    will be permitted to begin on or after the date of the Merger Agreement, and
    no participant will be permitted to elect to participate (or increase his or
    her participation) in any offering under the Employee Stock Purchase Plan in
    effect on the date of the Merger Agreement;

        (iv) the Company  will not,  and will  not cause  or permit  any of  its
    subsidiaries  to, propose or adopt any amendment to its or their articles of
    incorporation or bylaws (or similar charter documents) or take any action to
    alter  the  size  or  composition  of  its  Board,  except  as  specifically
    contemplated by the Merger Agreement;

        (v)  the  Company will  not, and  will not  cause or  permit any  of its
    subsidiaries to,  transfer,  sell,  lease, license,  mortgage  or  otherwise
    dispose  of or encumber any material assets, or enter into any commitment to
    do any of  the foregoing, other  than in  the ordinary and  usual course  of
    business,  consistent  with past  practice and  other than  any sale  by the
    Company of its shares of POL pursuant  to the POL Agreement or a Higher  POL
    Offer;

        (vi)  the Company  will not,  and will  not cause  or permit  any of its
    subsidiaries to, incur, become  subject to, or agree  to incur any debt  for
    borrowed  money or  incur or become  subject to any  obligation or liability
    (absolute  or  contingent),   except  current   liabilities  incurred,   and
    obligations under contracts entered into, in the ordinary course of business
    consistent  with prior practice, and  the Company will not  pay or be liable
    for prepayment or other penalties in connection with the early retirement of
    any Company indebtedness for borrowed money;

       (vii) the Company  will not,  and will  not cause  or permit  any of  its
    subsidiaries  to, make any  change in the compensation  payable or to become
    payable to any of its officers, directors, employees, agents or consultants,
    enter  into  or  amend  any  employment,  severance,  termination  or  other
    agreement  or make any  loans to any of  its officers, directors, employees,
    agents or  consultants or  make  any change  in  its existing  borrowing  or
    lending  arrangements  for or  on  behalf of  any  of such  persons, whether
    contingent on consummation of the Offer, the Merger or otherwise;

      (viii) the Company  will not,  and will  not cause  or permit  any of  its
    subsidiaries to (a) pay, agree to pay or make any accrual or arrangement for
    payment  of  any pension,  retirement  allowance or  other  employee benefit
    pursuant to  any existing  plan, agreement  or arrangement  to any  officer,
    director  or  employee  except  in  the  ordinary  course  of  business  and
    consistent with past practice or as  permitted by the Merger Agreement;  (b)
    pay  or agree to pay  or make any accrual or  arrangement for payment to any
    employees of the Company or any  of its subsidiaries of any amount  relating
    to  unused vacation  days; (c)  except for  a contribution  to the Company's
    Profit Sharing Plan in  an amount not to  exceed $500,000, commit itself  or
    themselves  to adopt  or pay, grant,  issue, accelerate or  accrue salary or
    other payments or benefits pursuant  to any pension, profit-sharing,  bonus,
    extra  compensation, incentive, deferred compensation, stock purchase, stock
    option, stock appreciation right, group insurance, severance pay, retirement
    or other employee benefit plan, agreement or arrangement, or any  employment
    or  consulting agreement with  or for the benefit  of any director, officer,
    employee, agent or consultant, whether past or present; or (d) amend in  any
    material respect any such existing plan, agreement or arrangement;

                                       20
<PAGE>
        (ix)  the Company and each of its subsidiaries must (a) properly prepare
    and file all material reports or tax returns required by the Company or  any
    subsidiary  to be filed with any governmental or regulatory authorities with
    respect to its  business, operations, or  affairs, and (b)  pay in full  and
    when  due all  taxes indicated  on such tax  returns or  otherwise levied or
    assessed upon  the Company,  its subsidiaries  or any  of their  assets  and
    properties   unless  such  taxes  are  being  contested  in  good  faith  by
    appropriate  proceedings  and   reasonable  reserves   therefor  have   been
    established in accordance with GAAP. The preparation of any such tax returns
    filed  by the Company will  be subject to the  timely review and approval of
    Parent, which approval will not be unreasonably withheld;

        (x) the  Company and  each of  its  subsidiaries must  (a) report  on  a
    regular basis, at reasonable times, to a representative designated by Parent
    regarding  material  operational  matters and  financial  matters (including
    monthly unaudited financial information); (b) promptly and regularly  notify
    Parent  of any change in  the normal course or  operation of its business or
    its properties and of any material development in the business or operations
    of the  Company  and  its subsidiaries  (including  without  limitation  any
    Material  Adverse  Effect (as  hereinafter defined)  or any  governmental or
    third   party   claims,   complaints,   investigations   or   hearings,   or
    communications indicating that the same may be forthcoming or contemplated);
    and  (c) cooperate  with Parent  and its  affiliates and  representatives in
    arranging for  an orderly  transition  in connection  with the  transfer  of
    control  of  the Company,  including  without limitation  arranging meetings
    among the Company, its vendors, suppliers and customers and  representatives
    of Parent and its affiliates; and

        (xi)  the Company  will not,  and will  not cause  or permit  any of its
    subsidiaries  to:  (a)  enter  into,  amend  or  terminate  any  agreements,
    commitments  or  contracts  which,  individually or  in  the  aggregate, are
    material to the financial condition, business, assets, properties, prospects
    or results of  operations of  the Company and  its subsidiaries  taken as  a
    whole, or waive, release, assign or relinquish any material rights or claims
    thereunder,  except in the ordinary course of business, consistent with past
    practice; (b) discharge or satisfy any lien or encumbrance or payment of any
    obligation  or  liability  (absolute  or  contingent)  other  than   current
    liabilities  in  the ordinary  course of  business; (c)  cancel or  agree to
    cancel any material  debts or claims,  except in each  case in the  ordinary
    course  of business;  (d) waive  any rights  of substantial  value; (e) pay,
    discharge, satisfy or settle any litigation or other claims, liabilities  or
    obligations   (absolute,  accrued,   asserted,  unasserted,   contingent  or
    otherwise) involving the payment by the  Company or any of its  subsidiaries
    of  more than $50,000; (f) make any equity investments in third parties; (g)
    incur, pay, or be subject to any material obligation to make any payment of,
    or in respect of,  any tax on  or before the Effective  Time, except in  the
    ordinary  course  of  business  consistent with  past  practice,  settle any
    material audit, make or change any material tax election or file any amended
    tax returns, or agree to extend or  waive any statute of limitations on  the
    assessment  or collection of taxes; (h) adopt  a plan of complete or partial
    liquidation, dissolution, merger, consolidation, restructuring,
    recapitalization or  other  reorganization of  the  Company or  any  of  its
    subsidiaries  (other than the Merger) or  otherwise make any material change
    in the  conduct  of  the business  or  operations  of the  Company  and  its
    subsidiaries  taken as a whole; or (i) agree in writing or otherwise to take
    any of the foregoing  actions or any other  action which would constitute  a
    Material  Adverse Effect in any of the representations and warranties of the
    Company in the Merger Agreement, or  make any representation or warranty  of
    the Company in the Merger Agreement materially inaccurate in any respect.

    Furthermore, under the Merger Agreement the parties have agreed that none of
the  Company  nor any  of  its subsidiaries  will  make any  loans,  advances or
contributions, or  any investments  in,  POL except  any such  loans,  advances,
contributions or investments that are (a) reflected as an "intercompany account"
on  the Company's balance sheet and (b) used solely for POL's ordinary course of
business operations.  As  used in  the  Merger Agreement,  a  "Material  Adverse
Effect"  means  any event,  circumstance,  condition, development  or occurrence
causing, resulting  in or  having a  material adverse  effect on  the  financial
condition,  business, assets, properties, prospects  or results of operations of
the Company and its subsidiaries taken as a whole; PROVIDED, that such term does
not include effects resulting from  market conditions generally in the  delivery
of perfusion services.

                                       21
<PAGE>
    NO  SOLICITATION.  In the Merger Agreement,  the Company has agreed that the
Company and  its  subsidiaries and  affiliates  will  not, and  will  use  their
reasonable   efforts  to  ensure  that  their  respective  officers,  directors,
employees, investment bankers, attorneys, accountants and other  representatives
and  agents  do not,  directly or  indirectly,  initiate, solicit,  encourage or
participate in, or provide any information to any person concerning, or take any
action to facilitate the making of,  any offer or proposal which constitutes  or
is  reasonably  likely  to  lead to  any  Acquisition  Proposal  (as hereinafter
defined) of  the Company  or any  subsidiary  or affiliate  or an  inquiry  with
respect  thereto. The  Company has  agreed and  will cause  its subsidiaries and
affiliates, and  their  respective officers,  directors,  employees,  investment
bankers, attorneys, accountants and other agents to, immediately cease and cause
to  be terminated all existing activities, discussions and negotiations, if any,
with any parties conducted heretofore with respect to such matters. Nonetheless,
the Company may, directly or indirectly, provide access and furnish  information
concerning  its business, properties or  assets to any corporation, partnership,
person or  other entity  or  group pursuant  to an  appropriate  confidentiality
agreement,  and may  negotiate and  participate in  discussions and negotiations
with such entity or group concerning an Acquisition Proposal (x) if such  entity
or group has submitted a bona fide written proposal to the Board relating to any
such transaction and (y) if, in the opinion of the Board after consultation with
independent   legal  counsel  to  the  Company,  the  failure  to  provide  such
information or access or to engage in such discussions or negotiations would  be
inconsistent with their fiduciary duties under applicable law.

    The  Company is required to promptly notify Parent and Purchaser of any such
offers, proposals  or Acquisition  Proposals (including  without limitation  the
terms  and conditions thereof and the identity  of the person making it), and is
further required to keep Parent apprised of all developments with respect to any
such Acquisition  Proposal.  The Company  is  further required  to  give  Parent
written notice of any Acquisition Proposal that the Company intends to accept as
an  Acceptable Offer  in accordance  with the terms  of the  Merger Agreement at
least two business days prior to accepting such offer or otherwise entering into
any agreement  or understanding  with respect  thereto. Any  modification of  an
Acquisition  Proposal  constitutes a  new Acquisition  Proposal for  purposes of
these provisions of the Merger Agreement.

    Nothing in Section 6.1 of the Merger Agreement prohibits the Company or  its
Board  from (a) taking  and disclosing to the  Company's shareholders a position
with respect to  a tender offer  by a third  party pursuant to  Rules 14d-9  and
14e-2  under the Exchange  Act, or (b)  making such disclosure  to the Company's
shareholders which,  in  the  opinion  of the  Board,  after  consultation  with
independent  legal counsel to the Company, may be required under applicable law.
"Acquisition Proposal" when used in connection with any person means any  tender
or   exchange  offer  involving   such  person,  any   proposal  for  a  merger,
consolidation or  other  business  combination  involving  such  person  or  any
subsidiary  of such  person, any proposal  or offer  to acquire in  any manner a
substantial equity interest  in, or  a substantial  portion of  the business  or
assets  of, such person or any subsidiary  of such person, any proposal or offer
with respect  to any  recapitalization  or restructuring  with respect  to  such
person or any subsidiary of such person or any proposal or offer with respect to
any  other transaction  similar to  any of  the foregoing  with respect  to such
person, or any subsidiary  of such person; PROVIDED,  HOWEVER, that, as used  in
the  Merger Agreement, the term "Acquisition Proposal" does not apply to (i) any
offer or proposal for a transaction between the Company and any person providing
for the sale to such  person of all of the  capital stock of, and the  Company's
rights, interests, obligations and liabilities relating to, POL which is covered
by Section 6.13 of the Merger Agreement (See "POL Agreement" below) and (ii) any
transaction  of the  type described  in Section  6.1(d) of  the Merger Agreement
involving Parent, Purchaser  or their  affiliates. "Acceptable  Offer" means  an
executed  written offer for an Acquisition  Proposal received by the Company (i)
in which  the  offeror  demonstrates  proof  of  its  financial  capability  and
authority  to consummate the transactions  contemplated by such offer (including
without limitation  the  payments  required  by Section  9.1(b)  of  the  Merger
Agreement)  and (ii) which provides for (x)  net cash proceeds to the Company or
all of its  shareholders (in  addition to amounts  paid pursuant  to clause  (i)
above)  in an amount greater  than that provided for  thereunder, at a per Share
purchase price greater than that contained  in the Merger Agreement (or, in  the
event  such amount has  been increased by  Parent in the  Merger Agreement, such
greater  amount)  or  (y)  the  issuance   of  publicly  traded  stock  as   the
consideration  payable to the Company or all of its shareholders (in addition to
amounts paid pursuant to

                                       22
<PAGE>
clause (i) above) which  has an established  market value in  excess of the  per
Share  purchase price contained  herein (or, in  the event such  amount has been
increased by Parent in the Merger Agreement, such greater amount).

    PARENT'S SALE OF  SHARES IN ACCEPTABLE  OFFER.   In the event  that (a)  the
Merger  Agreement has  been terminated  in accordance  with Section  8.1 thereof
(other than due to a breach by the  Company), and (b) at any time in the  twelve
months  after such termination of the Merger  Agreement the Company engages in a
transaction  that  would  constitute  an  Acceptable  Offer  under  the   Merger
Agreement,  then in such case  Parent agrees that it  will sell to the Company's
designee (i) the Option,  at a purchase  price equal to the  product of (x)  the
excess  of the  price per Share  provided by  such Acceptable Offer  and (y) the
number of  Shares  subject  to  the  Option; or  (ii)  if  Purchaser  will  have
theretofore  exercised the Option,  the Shares acquired  pursuant thereto at the
price per Share provided by such Acceptable Offer, in either case at or prior to
the consummation  of  the transaction  contemplated  by such  Acceptable  Offer.
Notwithstanding  the foregoing, neither Parent nor Purchaser will be required to
sell the Option on the Shares, or Shares purchased upon exercise thereof, to the
extent that  any profits  resulting therefrom  would be  subject to  the  profit
recovery provisions of Subchapter 25H of Pennsylvania Law.

    DIRECTORS'  AND  OFFICERS' INDEMNIFICATION.   (a)  For  six years  after the
earlier of (i) the date  on which the designees of  Parent have been elected  to
the  Board pursuant  to the  Merger Agreement and  constitute a  majority of the
members thereof and  (ii) the  Effective Time, Parent  will, or  will cause  the
Surviving  Corporation to, indemnify,  defend and hold  harmless the present and
former officers,  directors,  employees  and  agents  of  the  Company  and  its
Subsidiaries  (other than POL) (each an "Indemnified Party") against all losses,
claims, damages, liabilities, fees and  expenses (including reasonable fees  and
disbursements  of counsel and judgments,  fines, losses, claims, liabilities and
amounts paid in settlement (provided that  any such settlement is effected  with
the  prior written consent of Parent  or the Surviving Corporation)) arising out
of actions or omissions occurring at or prior to the Effective Time to the  full
extent permitted under Pennsylvania law, the Company's articles of incorporation
or  bylaws or  certain written  indemnification agreements,  in each  case as in
effect at  November  22, 1995,  including  provisions therein  relating  to  the
advancement of expenses incurred in the defense of any action or suit; PROVIDED,
that  in the event any claim or claims are asserted or made within such six-year
period, all rights  to indemnification in  respect of any  such claim or  claims
shall  continue  until disposition  of any  and all  such claims;  and PROVIDED,
FURTHER, that any determination required to  be made with respect to whether  an
Indemnified  Party's  conduct  complies  with  the  standards  set  forth  under
Pennsylvania Law,  the Company's  articles of  incorporation or  bylaws or  such
agreements,  as the case  may be, will  be made by  independent counsel mutually
acceptable to Parent and the Indemnified Party.

    (b) Parent or the Surviving Corporation must maintain the Company's existing
officers' and  directors' liability  insurance policy  ("D&O Insurance")  for  a
period  of not  less than  three years  after the  Effective Time; PROVIDED,that
Parent may substitute  therefor policies of  substantially similar coverage  and
amounts  containing  terms  no less  advantageous  to such  former  directors or
officers; PROVIDED,  FURTHER, that  if the  existing D&O  Insurance expires,  is
terminated  or cancelled during such period, Parent or the Surviving Corporation
will use its reasonable efforts  to obtain substantially similar D&O  Insurance;
PROVIDED,  HOWEVER,  that in  no  event shall  the  Company be  required  to pay
aggregate premiums for insurance  under Section 6.9 of  the Merger Agreement  in
excess  of 125%  of the aggregate  premiums paid by  the Company in  1994 (on an
annualized basis for such purpose) (the "1994 Premiums"). In the event that, but
for the  last proviso  of  the immediately  preceding  sentence, Parent  or  the
Surviving  Corporation would be  required to expend  more than 125%  of the 1994
Premiums, Parent or the Surviving  Corporation will purchase the maximum  amount
of  such insurance obtainable by payment of annual premiums equal to 125% of the
1994 Premiums.

    BENEFIT   PLANS   AND   CERTAIN   CONTRACTS;   CONSULTING   AND    SEVERANCE
ARRANGEMENTS.   It is Parent's current intention to cause the Company to provide
its employees in  general with employee  benefit arrangements providing  welfare
benefits  substantially comparable  in the  aggregate to  those provided  by the
Company as of the date of the  Merger Agreement, and Parent has agreed to  cause
the  Company to honor its existing severance and termination policy with respect
to employees generally, PROVIDED, that Parent  has retained the right to  amend,
modify or terminate any employee benefit policy or arrangement maintained by the

                                       23
<PAGE>
Company  to the extent permitted  by applicable law. A  group of 23 officers and
other key employees including Mrs. Dunaway will be offered severance  agreements
(the "Severance Agreements") providing for either six or twelve months of salary
continuation benefits in the event their employment is terminated by the Company
without  "cause" or by  the employee for  "good reason" (each  as defined in the
Severance Agreements)  within  eighteen  months  following  the  date  on  which
Parent's  designees  constitute a  majority  of the  Board  of Directors  of the
Company. The Board approved  consulting agreements between  the Company and  Mr.
Scott  W. Soronen and Mr.  Michael D. Kebely, the  Senior Vice President and the
Chief Financial Officer  of the Company,  respectively (the "Officer  Consulting
Agreements"),  which provide for their retention  as consultants for a period of
nine and six  months, respectively,  at the  rate of  approximately $12,000  and
$8,380 per month, respectively, if their employment is terminated by the Company
without  "cause" or  by Mr.  Soronen or  Mr. Kebely  for "good  reason" (each as
defined in the Officer Consulting Agreements) on or prior to November 21,  1997.
Mr. Dunaway has a consulting agreement with the Company (the "Dunaway Consulting
Agreement")  providing for his retention  as a consultant for  a period of three
years if his employment is terminated by  the Company without "cause" or by  Mr.
Dunaway  for "good reason" (each as defined in the Dunaway Consulting Agreement)
on or prior to November 21, 1997. Pursuant to the Dunaway Consulting  Agreement,
Mr.  Dunaway would receive  a consulting fee  at the rate  of $20,000 per month,
continuation of medical  benefits, transfer  to him  of certain  "key man"  life
insurance policies and certain other benefits. The Dunaway Consulting Agreement,
the  Officer  Consulting  Agreements  and  the  Severance  Agreements  are  each
described in more detail in the Schedule 14D-9 enclosed herewith.

    COMPANY STOCK OPTIONS.  At or immediately prior to the Effective Time,  each
outstanding  employee and director stock option to purchase Shares (an "Option")
granted under  any  stock option  plan  or arrangement  of  the Company  or  any
subsidiary  of the Company (the "Option Plans")  will, subject to the consent of
the holders thereof, be cancelled, and  each holder of any such Option,  whether
or  not then vested or exercisable, will be paid by the Company in consideration
therefor an amount in cash determined by multiplying (i) the excess, if any,  of
$17.50  per Share over the applicable exercise  price of such Option by (ii) the
number of Shares such holder could have purchased (assuming full vesting of  all
Options)  had such holder exercised such Option in full immediately prior to the
Effective Time. With respect to any Options the holders of which do not  consent
to  such cancellation, the  Company will take appropriate  action to adjust such
Options to provide that upon the subsequent exercise or surrender thereof,  such
holders  will receive  a net amount,  without interest, equivalent  to what such
holders would have received  had such Options been  cancelled at or  immediately
prior to the Effective Time in the manner described above.

    POL  AGREEMENT.  The Merger Agreement provides  that the Company may not (a)
amend, revoke, withdraw, modify or terminate the POL Agreement, (b) exercise  or
waive any of its rights under the POL Agreement or (c) impede, interfere with or
attempt to discourage the transactions contemplated by the POL Agreement without
the  prior written consent of  Parent in its sole  discretion. The POL Agreement
may only be terminated by the Company in order to allow the Company to accept  a
bona  fide  POL Proposal  providing for  the sale  of POL  for greater  net cash
proceeds (after taking into account all out-of-pocket expenses directly  related
to  such  transaction  incurred  after  November  22,  1995,  including  without
limitation the fees and expenses of Dunaway Holdings incurred in connection with
the POL Agreement and Dain Bosworth  in connection with marketing POL), than  $4
million  and which is (i) otherwise on  substantially the same terms (other than
any financing terms) and  (ii) for such other  consideration, in either case  as
Parent  in its  sole discretion  may agree  to. Under  the Merger  Agreement the
Company must  promptly notify  Parent  of any  POL Proposal  (including  without
limitation  the  terms and  conditions thereof  and the  identity of  the person
making it), and will keep Parent  apprised of all developments with any  respect
to any POL Proposal. In addition, the Company must give Parent written notice of
any  POL Proposal  that the  Company proposes to  accept in  accordance with the
terms of the Merger Agreement as a Higher POL Offer at least five business  days
prior to accepting such POL Proposal or otherwise entering into any agreement or
understanding with respect thereto.

    SAVANNAH  PERFUSION EARN-OUT.  At or prior to the Effective Time the Company
must either (a) obtain a  consent (which will be in  such form and substance  as
are reasonably satisfactory to the Company) pursuant to that certain Acquisition
Agreement   and  Plan  of  Merger,  dated   November  30,  1993,  by  and  among

                                       24
<PAGE>
Savannah  Perfusion, Inc.,  Shelton, PSICOR  Merger Corporation  and the Company
(the "Savannah Agreement"), for  the party thereto to  accept a cash payment  of
$17.50 per Share in full satisfaction of the Company's obligations, when due, to
issue  the Shares pursuant to the  earn-out provisions of the Savannah Agreement
or (b) enter into such other arrangements with respect to the Savannah Agreement
as are reasonably satisfactory to Parent and the Company. The Company has agreed
to use all reasonable efforts to obtain such consent or other arrangement.

    REPRESENTATIONS  AND   WARRANTIES.     The   Company  has   made   customary
representations  and warranties to  Parent and Purchaser  with respect to, among
other things, its organization and qualification, subsidiaries,  capitalization,
authority,  consents  and  approvals,  violation,  the  Company's  SEC  reports,
financial  statements,   undisclosed   liabilities,  certain   changes,   taxes,
litigation,  employee  benefit plans,  environmental liability,  compliance with
applicable laws, material contracts, patents, marks, trade names, copyrights and
registrations, fraud and  abuse, insurance, opinion  of financial advisor,  vote
required,  information supplied, the Company's  proxy statement, certain matters
with respect  to Shareholders'  Shares and  Pennsylvania Law,  voting rights  of
Shares, and the POL Agreement.

    TERMINATION;  FEES.  The  Merger Agreement may be  terminated and the Merger
may be abandoned  at any time  prior to  the Effective Time,  whether before  or
after shareholder approval thereof:

        (i) by mutual consent of the Board of Directors of Parent and the Board;

        (ii) by either the Board of Directors of Parent or the Board: (a) if the
    Merger will not have been consummated on or prior to May 21, 1996; PROVIDED,
    HOWEVER,  that the right  to terminate the Merger  Agreement as described in
    this clause (a) will not be available to any party whose failure to  fulfill
    any material obligation under the Merger Agreement has been the cause of, or
    resulted in, the failure of the Merger to be consummated on or prior to such
    date;  or (b) if a court of  competent jurisdiction or other governmental or
    regulatory authority will have  issued an order, decree  or ruling or  taken
    any  other action (which  order, decree, ruling or  other action the parties
    hereto will use their reasonable efforts to lift), in each case  permanently
    restraining,   enjoining   or   otherwise   prohibiting   the   transactions
    contemplated by the Merger Agreement and such order, decree, ruling or other
    action will have become final and non-appealable;

       (iii) by the Board:  (a) if, prior  to the later of  (x) the purchase  of
    Shares by Parent, Purchaser or their affiliates pursuant to the Offer or the
    Tender  and Option Agreement or  (y) January 3, 1996,  the Company will have
    (A) accepted an Acceptable Offer in compliance with the terms of Section 6.1
    of the Merger Agreement and (B) paid or caused to be paid the $4 million fee
    payable to Parent provided for in Section 9.1(b) of the Merger Agreement; or
    (b) if, prior to  the purchase of  the Shares pursuant to  the Offer or  the
    Tender  and Option Agreement,  Parent or Purchaser breaches  or fails in any
    material respect to perform or comply with any of its material covenants and
    agreements contained herein or  breaches its representations and  warranties
    in  any  material respect;  or  (c) if  Parent,  Purchaser or  any  of their
    affiliates will  have failed  to commence  the  Offer on  or prior  to  five
    business  days following the date of  the initial public announcement of the
    Offer  other  than  due  to  an  occurrence  that  if  occurring  after  the
    commencement  of the Offer would  result in a failure  to satisfy any of the
    conditions described in Section 14 of this Offer to Purchase; provided  that
    the  Company may  not terminate  the Merger  Agreement as  described in this
    clause (c) if the Company is in material breach of the Merger Agreement;

        (iv) by the Board of Directors of  Parent: (a) if, due to an  occurrence
    that  if occurring  after the  commencement of the  Offer would  result in a
    failure to satisfy  any of the  conditions described in  Section 14 of  this
    Offer  to Purchase, Parent, Purchaser, or  any of their affiliates will have
    failed to commence the Offer on or prior to November 29, 1995; PROVIDED that
    Parent and Purchaser may not terminate the Merger Agreement as described  in
    this  clause (a)  if Parent or  Purchaser (x)  is in material  breach of the
    Merger Agreement;  or (y)  has not  exercised  such right  by the  close  of
    business, Los Angeles time, on the fifth business day following November 29,
    1995;  or (b) if Parent or Purchaser is not in material breach of the Merger
    Agreement and (A) prior to the purchase of Shares pursuant to the Offer, the
    Company will  have received  an Acceptable  Offer and  the Board  will  have
    withdrawn, or

                                       25
<PAGE>
    modified  or changed  (including by  amendment of  the Schedule  14D-9) in a
    manner adverse to Parent or Purchaser its approval or recommendation of  the
    Offer,  the  Merger Agreement  or  the Merger  or  will have  recommended an
    Acquisition Proposal,  PROVIDED, HOWEVER,  that if  the Company's  Board  of
    Directors  modifies  or  changes  its  recommendation  of  the  Offer,  this
    Agreement or the Merger to either express no opinion and remain neutral with
    respect thereto, or to  provide that it  is unable to  take a position  with
    respect  thereto,  such modification  or  change will  not  be deemed  to be
    adverse to Parent or  Purchaser for purposes of  this clause (b)(A); or  (B)
    prior  to the purchase of the Shares pursuant to the Offer or the Tender and
    Option Agreement,  it  will  have  been  publicly  disclosed  or  Parent  or
    Purchaser will have learned that any person, entity or "group" (as that term
    is  defined in Section 13(d)(3)  of the Exchange Act),  other than Parent or
    its affiliates or  any group of  which any of  them is a  member, will  have
    acquired beneficial ownership (determined pursuant to Rule 13d-3 promulgated
    under the Exchange Act) of more than 19.9% of any class or series of capital
    stock  of the  Company (including  the Shares),  through the  acquisition of
    stock, the formation of a group or  otherwise, or will have been granted  an
    option,  right, or warrant, conditional  or otherwise, to acquire beneficial
    ownership of more than 19.9% of any class or series of capital stock of  the
    Company  (including the Shares); (c) if Parent or Purchaser, as the case may
    be, will have terminated the Offer,  or the Offer will have expired  without
    Parent  or Purchaser, as the case  may be, purchasing any Shares thereunder,
    PROVIDED that Parent and Purchaser may not terminate the Merger Agreement as
    described in  this clause  (c) if  (x) it  or the  Purchaser has  failed  to
    purchase  the Shares in the Offer in violation of the material terms thereof
    or (y) Parent  or Purchaser has  not exercised  such right by  the close  of
    business  on or before  the fifth business day  following the termination or
    expiration of the Offer in accordance with  its terms; (d) if, prior to  the
    purchase  of  the Shares  pursuant to  the  Offer or  the Tender  and Option
    Agreement, the Company breaches or fails in any material respect to  perform
    or comply with any of its material covenants and agreements contained in the
    Merger  Agreement  or breaches  its  representations and  warranties  in any
    material respect;  or (e)  if the  Company does  not deliver  to Parent  the
    opinions  contemplated by  the Merger  Agreement by  the tenth  business day
    after the date  of the Merger  Agreement, in form  and substance  reasonably
    satisfactory to Parent in its sole discretion.

    If  (i) the  Board terminates the  Merger Agreement because  the Company has
accepted an Acceptable Offer under certain conditions prior to the later of  the
purchase  of Shares under the Offer or Tender and Option Agreement or January 3,
1996, (ii) the Board of Directors  of Parent terminates the Merger Agreement  if
the  Company has received an Acceptable Offer and withdrawn or adversely changed
its recommendation of  the transaction  under certain  circumstances, (iii)  the
Board  of Directors of Parent  terminates the Merger Agreement  if a person will
have acquired more than 19.9%  of any class of  the Company's capital stock  and
within one year of any such termination a Person acquires or beneficially owns a
majority  of the then  outstanding Shares or has  obtained representation on the
Board or entered into a definitive agreement with the Company with respect to an
Acquisition Proposal  or  similar business  combination  or (iv)  the  Board  of
Directors  of Parent terminates the Merger Agreement if Parent, Purchaser or any
of their affiliates will have failed to commence the Offer by November 29,  1995
under  certain circumstances or if Parent  or Purchaser will have terminated the
Offer or the Offer will have expired without Parent or Purchaser purchasing  any
Shares  under certain conditions, in  each case due to  (x) a material breach of
the representations  and warranties  of  the Company  set  forth in  the  Merger
Agreement or (y) a material breach of, or failure to perform or comply with, any
material  obligation, agreement or  covenant contained in  the Merger Agreement,
including but not limited to the covenants by the Company, then in any such case
as described in clause (i), (ii), (iii)  or (iv), the Company will pay or  cause
to  be paid to Parent (concurrently with the termination of the Merger Agreement
in the case of a termination referred to in clause (i) upon the consummation  of
the  Acquisition  Proposal or  similar  business combination  in  the case  of a
termination referred  to in  clause  (iii), and  otherwise  not later  than  two
business  days after termination of the Merger  Agreement) an amount equal to $4
million.

    TENDER AND OPTION  AGREEMENT.  THE  FOLLOWING IS A  SUMMARY OF THE  MATERIAL
TERMS  OF THE  TENDER AND  OPTION AGREEMENT.  THIS SUMMARY  IS QUALIFIED  IN ITS
ENTIRETY   BY   REFERENCE    TO   THE    FULL   TEXT   OF    THE   TENDER    AND

                                       26
<PAGE>
OPTION  AGREEMENT WHICH IS INCORPORATED HEREIN  BY REFERENCE AND COPIES OF WHICH
HAVE BEEN FILED WITH  THE COMMISSION AS  AN EXHIBIT TO  THE SCHEDULE 14D-1.  THE
TENDER  AND OPTION AGREEMENT MAY  BE EXAMINED AND COPIES  MAY BE OBTAINED AT THE
PLACE AND IN THE MANNER AS SET FORTH IN SECTION 8 OF THIS OFFER TO PURCHASE.

    TENDER OF SHARES.  Immediately after the execution of the Merger  Agreement,
Parent,  Purchaser and Selling  Shareholders entered into  the Tender and Option
Agreement. Upon the terms and subject  to the conditions of such agreement,  the
Selling  Shareholders have severally  agreed (i) to validly  tender or cause the
record owner of any Shares to tender all Shares pursuant to the Offer, not later
than the fifth business day after commencement of the Offer or, with respect  to
any  Shares acquired directly or indirectly, or otherwise beneficially owned, by
any of the  Selling Shareholders  in any capacity  after November  22, 1995  and
prior  to the termination of  the Tender and Option  Agreement, whether upon the
exercise  of  options,  warrants  or  rights,  the  conversion  or  exchange  of
convertible  or exchangeable  securities, or by  means of  a purchase, dividend,
distribution, gift, bequest,  inheritance or as  a successor-in-interest in  any
capacity (including a fiduciary capacity) or otherwise ("After-Acquired Shares")
within  one business day following the acquisition thereof, (ii) not to withdraw
any Shares so tendered without the  prior written consent of Parent except  upon
receipt  of notice from Parent  that it is exercising  the Option to acquire the
Shares and (iii) to withdraw all  Shares tendered in the Offer immediately  upon
receipt  of notice from  Parent that it  is exercising the  Option in order that
Purchaser may acquire  such Shares.  The Selling Shareholders  have agreed  that
Purchaser's obligation to accept for payment and pay for the Shares in the Offer
is subject to the terms and conditions of the Offer.

    OPTION.   In order to  induce Parent and Purchaser  to enter into the Merger
Agreement each of the Selling Shareholders have granted to Parent and  Purchaser
an  irrevocable option, exercisable in  whole but not in  part (the "Option") to
purchase the  Selling Shareholders'  1,931,426 Shares  at a  purchase price  per
Share  equal  to $17.50.  The Option  terminates and  is no  longer exercisable,
notwithstanding any notice of exercise with respect thereto, from and after  the
earlier of (i) termination of the Merger Agreement by mutual consent, because of
Parent's  or Purchaser's material breach of their representations, warranties or
covenants or if Parent, Purchaser or any of their affiliates will have failed to
commence the Offer by November 29, 1995 under certain conditions or (ii) May 21,
1996. The obligation of the Selling Shareholders to sell Shares pursuant to  the
Option  is subject to the following conditions: (i) neither Parent nor Purchaser
will be in breach in any material  respect of the Merger Agreement; (ii)  Parent
will  have accepted Shares for payment pursuant to the Offer, or the Offer shall
have otherwise expired or  been terminated in accordance  with its terms;  (iii)
neither  Parent  nor  Purchaser will  have  the  right to  terminate  the Merger
Agreement under Section  8.1(d)(i) or  (iii) thereof; (iv)  all waiting  periods
under  the HSR  Act and any  securities laws  applicable to the  exercise of the
Option will have expired or been terminated; (v) there will be no preliminary or
permanent injunction or other order, decree or ruling issued by any governmental
or regulatory authority or  agency (a "Governmental  Entity"), nor any  statute,
rule,  regulation or  order promulgated  or enacted  by any  Governmental Entity
prohibiting, or otherwise  restraining, such  exercise of the  Option; (vi)  the
conditions  to the  Merger regarding  governmental approvals,  legal actions and
statutes will have theretofore been satisfied  or are not impossible to  satisfy
(other  than  due to  a material  breach of  the Merger  Agreement by  Parent or
Purchaser); and (vii)  the Option  will be exercisable  on or  after January  3,
1996.  In the event  Parent or Purchaser  wishes to exercise  the Option, Parent
will deliver notice thereof to each of the Selling Shareholders, specifying  the
date, time and place for the closing of such purchase.

    ASSIGNMENT  OF DIVIDENDS AND OTHER  DISTRIBUTIONS.  The Selling Shareholders
have assigned to Purchaser  any and all dividends  and other distributions  that
may  be declared, set  aside or paid by  the Company with  respect to the Shares
during the term of the Tender and Option Agreement.

    NON-COMPETITION; NONDISCLOSURE.  The  Selling Shareholders have jointly  and
severally  agreed that for a period of three  years from the date of the sale of
the Shares  neither  Shareholder  will  compete  with  the  Company  or  solicit
employees  or  customers  of  the Company,  and  that  neither  Shareholder will
disclose trade  secrets  or  other  confidential  information  of  the  Company;
PROVIDED,  HOWEVER, that  neither Mr. nor  Mrs. Dunaway will  be prohibited from
directly or indirectly owning, or participating in the conduct of the  physician
office  laboratory services business of, Psicor Office Laboratories, Inc. to the
extent that such business  is acquired by Dunaway  Holdings pursuant to the  POL
Put Option.

                                       27
<PAGE>
    VOTING.  Each Selling Shareholder has agreed that (for so long as the Merger
Agreement  is in effect), at  any meeting of the  holders of the Shares, however
called, or in connection with any written consent of the holders of the  Shares,
they  will vote (or cause to be voted)  their Shares (a) in favor of the Merger,
the execution  and delivery  by the  Company  of the  Merger Agreement  and  the
approval  of the terms thereof and each of the other actions contemplated by the
Merger Agreement and the Tender and Option Agreement and any actions required in
furtherance thereof and hereof; (b) against  any action or agreement that  would
result in a breach in any respect of any covenant, representation or warranty or
any  other obligation or agreement of the  Company under the Merger Agreement or
the Tender  and Option  Agreement; and  (c)  except as  otherwise agreed  to  in
writing in advance by Parent, against any of the following actions or agreements
(other  than the Merger Agreement or the transactions contemplated thereby): (i)
any action or agreement  that is intended, or  could reasonably be expected,  to
impede,  interfere with, delay,  postpone or attempt  to discourage or adversely
affect the Merger, the Offer and the transactions contemplated by the Tender and
Option Agreement  and the  Merger Agreement;  (ii) any  extraordinary  corporate
transaction,  such  as a  merger,  consolidation or  other  business combination
involving the Company and its subsidiaries; (iii) a sale, lease or transfer of a
material  amount  of   assets  of  the   Company  or  its   subsidiaries  or   a
reorganization,  recapitalization, dissolution or liquidation  of the Company or
its subsidiaries; (iv)  any change  in the management  or the  Board, except  as
specifically contemplated by the Merger Agreement; (v) any change in the present
capitalization  or dividend  policy of  the Company;  (vi) any  amendment of the
Company's articles  of incorporation  or  bylaws; or  (vii) any  other  material
change  in  the  Company's  corporate  structure  or  business.  Notwithstanding
anything to the contrary contained in  the Tender and Option Agreement, Mr.  and
Mrs.  Dunaway will be free  to act in their  respective capacities as members of
the Board and to discharge their fiduciary duties as such.

    OTHER COVENANTS, REPRESENTATIONS, WARRANTIES.  In connection with the Tender
and   Option   Agreement,   the   Selling   Shareholders   have   made   certain
representations,  warranties  and covenants,  including without  limitation with
respect to ownership of Shares, the Selling Shareholders' power and authority to
enter into and perform their obligations under the Tender and Option  Agreement,
the  receipt  of  requisite  governmental  consents  and  approvals,  absence of
conflicts, absence of liens  and encumbrances on and  in respect of the  Selling
Shareholders'  Shares, restrictions on the transfer of the Selling Shareholders'
Shares, reliance  by Parent,  finder's fees,  no solicitation,  non-competition,
nondisclosure,  notice of additional shares  and the solicitation of acquisition
proposals.

    CONFIDENTIALITY AGREEMENT.  THE FOLLOWING IS A SUMMARY OF THE MATERIAL TERMS
OF THE CONFIDENTIALITY AGREEMENT. THIS SUMMARY  IS QUALIFIED IN ITS ENTIRETY  BY
REFERENCE   TO  THE  FULL  TEXT  OF   THE  CONFIDENTIALITY  AGREEMENT  WHICH  IS
INCORPORATED HEREIN BY REFERENCE  AND A COPY  OF WHICH HAS  BEEN FILED WITH  THE
COMMISSION  AS AN EXHIBIT  TO THE SCHEDULE  14D-1. THE CONFIDENTIALITY AGREEMENT
MAY BE EXAMINED AND COPIES MAY BE OBTAINED AT THE PLACE AND IN THE MANNER AS SET
FORTH IN SECTION 8 OF THIS OFFER TO PURCHASE.

    Parent entered into  a Confidentiality and  Non-disclosure Agreement,  dated
October 13, 1995 (the "Confidentiality Agreement"), with the Company pursuant to
which  Parent  has  agreed, among  other  things, to  keep  confidential certain
non-public confidential or proprietary information  of the Company furnished  to
Parent  by or on  behalf of the Company.  The Confidentiality Agreement provides
that Parent agreed that, for twelve months, without the prior written consent of
the Company,  Parent will  not in  any  manner, directly  or indirectly,  or  in
connection with any other person or entity, (a) effect or seek, offer or propose
(whether publicly or otherwise) to effect or participate in, (i) any acquisition
of  any securities (or  beneficial ownership thereof) or  assets of the Company,
(ii) any  tender  or  exchange  offer,  merger  or  other  business  combination
involving  the Company, (iii)  any recapitalization, restructuring, liquidation,
dissolution or other extraordinary transaction  with respect to the Company,  or
(iv)  any "solicitation" of "proxies"  (as such terms are  defined in Rule 14a-1
under the Exchange Act) or consents to  vote any securities of the Company;  (b)
form,  join or  in any way  participate in  a "group" (as  such term  is used in
Section 13(d)(3) of the Exchange Act) or otherwise act, alone or with others, to
seek to  acquire  or  affect  control or  influence  the  management,  Board  of
Directors  or policies  of the  Company; or  (c) enter  into any  discussions or
arrangements with any third party  other than the Company, its  representatives,
or advisors to the recipient regarding any of the foregoing. Notwithstanding the
foregoing,  Parent  is  not  prohibited  from  proposing  to  the  Board  a cash
transaction

                                       28
<PAGE>
structured as a tender offer  followed by a merger in  which all holders of  the
Shares  (including outstanding options to acquire the Shares, whether vested and
exercisable or not)  will receive cash  consideration of not  less than  $17.50,
net, per share of the Shares.

    POL  AGREEMENT.  THE FOLLOWING IS A SUMMARY OF THE MATERIAL TERMS OF THE POL
AGREEMENT. THIS SUMMARY IS  QUALIFIED IN ITS ENTIRETY  BY REFERENCE TO THE  FULL
TEXT OF THE POL PUT OPTION AND THE POL PURCHASE AGREEMENT WHICH ARE INCORPORATED
HEREIN  BY REFERENCE AND COPIES OF WHICH  HAVE BEEN FILED WITH THE COMMISSION AS
AN EXHIBIT TO THE SCHEDULE 14D-1. THE  POL AGREEMENT MAY BE EXAMINED AND  COPIES
MAY BE OBTAINED AT THE PLACE AND IN THE MANNER AS SET FORTH IN SECTION 8 OF THIS
OFFER TO PURCHASE.

    Concurrently  with the execution and delivery of the Merger Agreement, as an
inducement to Parent to  acquire the Company, the  Company and Dunaway  Holdings
entered  into the POL Agreement pursuant to which Dunaway Holdings has agreed to
acquire from the Company, if  the Company exercises the  POL Put Option, all  of
the  outstanding  shares of  POL,  together with  all  of the  Company's rights,
interests, liabilities and obligations relating to  POL, if no higher offer  for
POL  is received by  the Company. If  the Company exercises  the POL Put Option,
under the POL Purchase Agreement the purchase price payable by Dunaway  Holdings
will be $4 million, subject to adjustment, payable as follows: (i) the sum of $1
million  cash, such amount to be subject to adjustment (based upon the excess of
the amount of the "intercompany account  balance" with respect to POL  reflected
on  the  Company's  closing balance  sheet  over  such amount  reflected  on the
Company's balance sheet for the fiscal year ended September 30, 1995) and (ii) a
$3 million  principal amount  unsecured subordinated  ten-year note  of  Dunaway
Holdings  bearing interest  at the prime  rate. The Merger  Agreement allows the
Company to terminate  the POL Agreement  in order  for the Company  to accept  a
Higher  POL Offer. The Company has informed  Purchaser that it has retained Dain
Bosworth to seek possible  buyers for POL other  than Dunaway Holdings and  that
Dain  Bosworth has commenced  such process. The POL  Agreement provides that any
closing of the  acquisition of POL  by Dunaway Holdings  in accordance with  the
terms  and  conditions of  the POL  Agreement  will occur  after the  closing or
termination of the Offer. It is a condition  to the Offer that POL be sold in  a
Higher  POL Offer or that the POL Agreement  be in full force and effect and all
conditions to the closing of the transactions contemplated thereby be capable of
being satisfied promptly, and  it is a  condition to the  Merger that POL  shall
have been sold, whether pursuant to the POL Agreement or a Higher POL Offer. See
"Merger  Agreement" above. As part of the POL Agreement, the parties have agreed
that they  shall in  good faith  negotiate  the terms  of a  services  agreement
providing,  for an interim period following the closing of the transaction under
the POL Purchase  Agreement, for  the delivery  by the  Company to  POL of  such
administrative  and warehousing services as may  be agreed upon at the Company's
cost of providing such services.

    VOTE REQUIRED  TO  APPROVE  MERGER.   Pennsylvania  Law  provides  that  the
adoption  of any  plan of  merger or consolidation  by the  Company requires the
approval of the Board and the affirmative  vote of a majority of the votes  cast
by  all shareholders entitled to vote thereon (including the votes of any Shares
owned by Parent  and Purchaser that  have voting  rights at such  time), if  the
"short  form" merger procedure  described below is not  available. The Board has
authorized and  approved  the  Offer  and the  Merger;  consequently,  the  only
additional  action of the Company that may  be necessary to effect the Merger is
approval by  such  shareholders  at  a meeting  of  the  Company's  shareholders
convened  for that purpose (the "Shareholders Meeting") if the short-form merger
procedure described below is not available. Pennsylvania Law also provides  that
the  Merger will not require the approval of the Company's shareholders, and can
be adopted by Purchaser's Board of Directors, if Purchaser owns at least 80%  of
the  outstanding Shares. Accordingly, if, as a result of the Offer or otherwise,
Purchaser acquires  or  controls  the  voting  power of  at  least  80%  of  the
outstanding Shares (which would be the case if the Minimum Tender Condition were
satisfied  and Purchaser were to accept  for payment Shares tendered pursuant to
the Offer, including  Shares tendered  by the  Selling Shareholders),  Purchaser
could,  and intends to,  effect the Merger without  the Shareholders Meeting and
without approval by shareholders of the Company. If, however, Purchaser does not
acquire at least 80%  of the then  outstanding Shares pursuant  to the Offer  or
otherwise   and  a  vote  of  the   Company's  shareholders  is  required  under
Pennsylvania Law, a  significantly longer  period of  time will  be required  to
effect the Merger.

                                       29
<PAGE>
Although under the terms of the Merger Agreement, Parent and Purchaser may waive
the  Minimum Condition,  they do not  currently intend  to do so  and Parent and
Purchaser may terminate  the Merger Agreement  if the Minimum  Condition is  not
satisfied.

    The  Commission  has adopted  Rule  13e-3 under  the  Exchange Act  which is
applicable to certain "going private"  transactions and which may under  certain
circumstances  be  applicable  to  the Merger  or  another  business combination
following the purchase of Shares pursuant to the Offer in which Purchaser  seeks
to  acquire the  remaining Shares not  held by it.  Purchaser believes, however,
that Rule 13e-3 will not be applicable  to the Merger because it is  anticipated
that  the Merger will be effected within  one year following consummation of the
Offer.  Rule  13e-3  requires,  among  other  things,  that  certain   financial
information  concerning  the Company  and  certain information  relating  to the
fairness of the proposed transaction  and the consideration offered to  minority
shareholders  in such transaction, be filed with the Commission and disclosed to
shareholders prior to consummation of the transaction.

    APPRAISAL RIGHTS.  Notwithstanding anything  in the Merger Agreement to  the
contrary,  any issued and outstanding  Shares held by persons  who object to the
Merger and comply  with all the  provisions of Pennsylvania  Law concerning  the
right  of holders of Shares to dissent  from the Merger and require appraisal of
their Shares ("Dissenting Shareholder") will not be converted into the right  to
receive  the Offer Price, without interest, pursuant to the Merger Agreement but
will become the right to receive such  consideration as may be determined to  be
due  to such Dissenting Shareholder pursuant  to the Pennsylvania Law; PROVIDED,
HOWEVER, that the Shares outstanding immediately prior to the Effective Time and
held by a Dissenting  Shareholder who will, after  the Effective Time,  withdraw
his demand for appraisal or lose his right of appraisal, in either case pursuant
to the Pennsylvania Law, will be deemed to be converted as of the Effective Time
into  the  right to  receive the  Offer  Price, payable  to the  holder thereof,
without interest. The Company will give Parent (i) prompt notice of any  written
demands  for  appraisal of  the  Shares received  by  the Company  and  (ii) the
opportunity to direct all negotiations and proceedings with respect to any  such
demands.  The Company  will not,  without the  prior written  consent of Parent,
voluntarily make any  payment with  respect to, or  settle, offer  to settle  or
otherwise negotiate, any such demands.

    In  addition to the appraisal rights discussed above, shareholders also have
certain  rights  ("Subchapter   25E  Rights")  under   Subchapter  25E  of   the
Pennsylvania  Law ("Subchapter 25E")  which will become  applicable prior to the
Effective Time in the event that the  Purchaser (or a group of related  persons,
or  any  other  person or  group  of  related persons)  were  to  acquire Shares
representing at least 20% of the voting power of the Company, in connection with
the Offer or otherwise (a "Control Transaction"). In such event, shareholders of
the Company would have  the right to demand  "fair value" of such  shareholders'
Shares  and to be paid such fair  value upon compliance with the requirements of
Subchapter 25E. Under  Subchapter 25E,  "fair value" may  not be  less than  the
highest  price per  share paid by  the controlling  person or group  at any time
during the  90-day  period ending  on  and including  the  date of  the  Control
Transaction,  plus  an increment,  if  any, representing  any  value, including,
without limitation, any proportion of  value payable for acquisition of  control
of  the Company that may not be reflected in such price. Purchaser believes that
the Offer Price represents fair market value of the Shares within the meaning of
Subchapter 25E. Subchapter 25E Rights would attach immediately upon consummation
of a Control Transaction and require that any shareholder seeking such appraisal
must make a demand for fair value  within a reasonable time after the notice  to
shareholders that a Control Transaction has occurred is given by the controlling
person  or group  in accordance  with Subchapter 25E,  which time  period may be
specified in  such  notice, as  well  as comply  with  the other  procedures  of
Subchapter  25E. Subchapter 25E Rights are available only with respect to shares
of a registered  corporation held  by a shareholder  after the  occurrence of  a
Control  Transaction; accordingly, Subchapter 25E  Rights would not be available
with respect  to any  Shares tendered  in the  Offer and  accepted for  payment.
Although  under the terms of the Merger Agreement Parent and Purchaser may waive
the Minimum Condition, they  do not currently  intend to do  so; and Parent  and
Purchaser  may terminate the Merger  Agreement and the transactions contemplated
thereby (including, without limitation, the  Offer) if the Minimum Condition  is
not satisfied. The foregoing summary of rights under Subchapter 25E is qualified
in  its  entirety by  reference to  the full  text of  Subchapter 25E,  which is
attached hereto as Annex A.

                                       30
<PAGE>
    Except as noted in this Offer to Purchase, neither Parent nor Purchaser  has
any  present plans or proposals that  would result in an extraordinary corporate
transaction, such  as  a  merger,  reorganization,  liquidation,  relocation  of
operations, or sale or transfer of assets, involving the Company or any material
changes  in the  Company's corporate structure,  business or  composition of its
management or personnel.

    12.  DIVIDENDS AND DISTRIBUTIONS; CHANGES IN STOCK.  As described above, the
Merger Agreement  provides that  the Company  will not,  and will  not cause  or
permit  any of its Subsidiaries to, (a)  declare, set aside or pay any dividends
on or make other distributions  in respect of any  shares of its capital  stock,
(b)  split, combine or  reclassify any shares  of its capital  stock or issue or
authorize the issuance of any other securities  in respect of, in lieu of or  in
substitution for any shares of its capital stock or (c) propose to do any of the
foregoing.  Notwithstanding  the  foregoing,  the  restrictions  on  the Company
declaring dividends under  the Merger  Agreement will not  prevent the  Company,
upon  the consummation by the Company of a transaction for a Higher POL Offer in
accordance with the Merger  Agreement, from declaring and  paying a dividend  in
respect of Shares (payable to the Company's record holders of Shares immediately
prior  to the earlier of (i) Purchaser's  acceptance of Shares for payment under
the Offer or (ii) the Effective Time) in an aggregate amount equal to the amount
of the excess of the net cash  proceeds actually received by the Company in  the
transaction   for  the  Higher   POL  Offer  (after   taking  into  account  all
out-of-pocket costs and expenses directly  related to such transaction  incurred
after  November 22, 1995, including without limitation the fees and expenses, to
the extent  reimbursable  by  the  Company,  of  Dunaway  Holdings  incurred  in
connection  with  the POL  Agreement  and of  Dain  Bosworth in  connection with
marketing POL)  over  the $4  million  to be  received  by the  Company  in  the
transaction  with Dunaway Holdings  contemplated by the POL  Agreement as of the
date thereof (the amount of such dividend to be subject to prior confirmation by
Parent based upon reasonable documentation prepared by the Company). See Section
11.

    13.  EFFECT OF  THE OFFER ON  THE MARKET FOR THE  SHARES; NNM QUOTATION  AND
EXCHANGE  ACT REGISTRATION. The purchase of  Shares by Purchaser pursuant to the
Offer will reduce the number of  Shares that might otherwise trade publicly  and
will  reduce the number of  holders of Shares, which  could adversely affect the
liquidity and market value of the remaining Shares held by the public.

    Depending upon the  number of Shares  purchased pursuant to  the Offer,  the
Shares  may no longer meet the requirements  of the NASD for continued inclusion
on the NNM. The NASD requires that an issuer have at least 100,000 publicly held
shares, held by  at least  300 shareholders,  with a  market value  of at  least
$200,000,  have total assets of at least $2 million and have capital and surplus
(total shareholders' equity) of at least $1 million. If the NNM were to cease to
publish quotations for the Shares, it is possible that the Shares would continue
to trade in the over-the-counter market and that price or other quotations would
be reported by other sources. The extent  of the public market for such and  the
availability  of such quotations would depend, however, upon such factors as the
number of  shareholders and/or  the aggregate  market value  of such  securities
remaining  at such time, the  interest in maintaining a  market in the Shares on
the part of securities firms, the possible termination of registration under the
Exchange Act as described below, and other factors. The Purchaser cannot predict
whether the  reduction  in the  number  of  Shares that  might  otherwise  trade
publicly  would have an adverse or beneficial effect on the market price for, or
marketability of, the Shares or whether  it would cause future market prices  to
be greater or lesser than the Offer Price.

    The  Shares are currently "margin securities," as such term is defined under
the rules of the Board of Governors of the Federal Reserve System (the  "Federal
Reserve  Board"), which has the effect,  among other things, of allowing brokers
to extend credit on  the collateral of such  securities. Depending upon  factors
similar  to  those  described  above regarding  listing  and  market quotations,
following the Offer it  is possible that the  Shares might no longer  constitute
"margin  securities"  for  purposes of  the  margin regulations  of  the Federal
Reserve Board, in which event such Shares could no longer be used as  collateral
for loans made by brokers.

    The   Shares  are  currently   registered  under  the   Exchange  Act.  Such
registration may be terminated upon application of the Company to the Commission
if the Shares are  not listed on  a national securities  exchange and there  are
fewer  than 300 record holders of the Shares. The termination of registration of
the Shares under  the Exchange  Act would substantially  reduce the  information
required to be furnished by the

                                       31
<PAGE>
Company  to  holders of  Shares and  to  the Commission  and would  make certain
provisions of  the  Exchange  Act,  such  as  the  short-swing  profit  recovery
provisions  of Section 16(b), the requirement of furnishing a proxy statement in
connection with  shareholders' meetings  pursuant to  Section 14(a),  no  longer
applicable  to the Shares. In addition,  "affiliates" of the Company and persons
holding "restricted securities" of the Company may be deprived of the ability to
dispose of such securities pursuant to Rule 144 promulgated under the Securities
Act.

    If registration of the  Shares under the Exchange  Act were terminated,  the
Shares  would no longer be "margin securities" or be eligible for NNM reporting.
In addition, if registration of the Shares under the Exchange Act is terminated,
Pennsylvania Law provides that  the applicability of Chapter  25 thereof to  the
Company  (see below)  shall terminate  immediately upon  the termination  of the
Company's status as a "registered corporation."

    Purchaser intends to seek to cause the Company to terminate the registration
of the Shares under the Exchange Act as soon after consummation of the Offer  as
the requirements for termination of the registration of the Shares are met.

    14.   CONDITIONS OF THE OFFER.   Notwithstanding any other provisions of the
Offer, and  in addition  to (and  not in  limitation of)  Purchaser's rights  to
extend  and amend the Offer  at any time in its  sole discretion (subject to the
provisions of the Merger  Agreement), Purchaser will not  be required to  accept
for  payment  or,  subject  to  any  applicable  rules  and  regulations  of the
Commission,  including  Rule  14e-1(c)  under  the  Exchange  Act  (relating  to
Purchaser's  obligation  to pay  for or  return  tendered Shares  promptly after
termination or withdrawal of the Offer),  pay for, and may delay the  acceptance
for  payment of or,  subject to the  restriction referred to  above, the payment
for, any tendered Shares, and may terminate the Offer as to any Shares not  then
paid for, if (i) the applicable waiting period under the HSR Act has not expired
or  terminated, (ii) the Minimum Condition has  not been satisfied or waived, or
(iii) at any time on or after November 22, 1995 and before the time for  payment
of any such Shares, any of the following events will occur or will be determined
by Purchaser to have occurred:

        (a)  there will have been instituted,  pending or threatened any action,
    proceeding, application, claim  or suit, or  any statute, rule,  regulation,
    judgment,  order  or  injunction  promulgated,  entered,  enforced, enacted,
    proposed, issued or applicable to the Offer or the Merger by any domestic or
    foreign Federal, state  or local governmental  regulatory or  administrative
    agency  or  authority  or  court or  legislative  body  or  commission which
    directly or indirectly (1) challenges,  seeks to make illegal, prohibits  or
    makes   illegal,  or  imposes  any  material  limitations  on,  Parent's  or
    Purchaser's ownership  or operation  (or  that of  any of  their  respective
    subsidiaries  or affiliates) of all or  a material portion of the businesses
    or assets of them or of the  Company or its subsidiaries, or compels  Parent
    or  Purchaser or their respective subsidiaries  and affiliates to dispose of
    or hold  separate any  material portion  of the  business or  assets of  the
    Company or Parent and their respective subsidiaries, in each case taken as a
    whole, (2) challenges, seeks to make illegal, prohibits or makes illegal the
    acceptance   for  payment,  payment  for  or   purchase  of  Shares  or  the
    consummation of the  Offer or the  Merger, (3)  results in the  delay in  or
    restricts  the ability of Purchaser, or  renders Purchaser unable, to accept
    for payment, pay  for or purchase  some or  all of the  Shares, (4)  imposes
    material  limitations on the ability of Parent or Purchaser to exercise full
    rights of ownership of the Shares, including without limitation the right to
    vote the Shares purchased  by it on all  matters presented to the  Company's
    shareholders,   except  as  specifically  provided   in  the  Control  Share
    Acquisition Chapter to the  extent that such chapter  does not prohibit  the
    Company  and  Parent  from engaging  in  a short-form  merger  under Section
    1924(b)(ii) of Pennsylvania  Law, (5)  seeks to obtain  or obtains  material
    damages  or  otherwise directly  or indirectly  relates to  the transactions
    contemplated by the Offer or the Merger, (6) seeks to require divestiture by
    Parent, Purchaser or any of  their respective subsidiaries or affiliates  of
    any  Shares, or (7) could otherwise have a Material Adverse Effect, PROVIDED
    that Parent will have  used reasonable efforts to  cause any such  judgment,
    order or injunction to be vacated or lifted;

        (b)  there will have occurred (1)  any general suspension of trading in,
    or limitation on prices for, securities on the NYSE or any other  securities
    market    for   a   period    in   excess   of    three   hours   (excluding

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<PAGE>
    suspensions  or  limitations  resulting  solely  from  physical  damage   or
    interference  with such exchanges  not related to  market conditions), (2) a
    declaration of a banking moratorium or any suspension of payments in respect
    of banks in the United States (whether or not mandatory), (3) a commencement
    of a  war, armed  hostilities or  other international  or national  calamity
    directly  or  indirectly involving  the  United States,  (4)  any limitation
    (whether or  not mandatory)  by any  foreign or  United States  governmental
    authority   on  the  extension  of  credit   by  banks  or  other  financial
    institutions, (5) any decline in either the Dow Jones Industrial Average  or
    the    Standard    &   Poor's    Index    of   500    Industrial   Companies
    by an  amount in  excess  of 20%  measured from  the  close of  business  on
    November  22, 1995, or (6)  in the case of any  of the foregoing existing at
    the time  of the  commencement  of the  Offer,  a material  acceleration  or
    worsening thereof;

        (c)  the representations and warranties of  the Company set forth in the
    Merger Agreement will not be true  and correct in any material respect  when
    made or at and as of the date of consummation of the Offer as though made on
    or  as of such  date, except (i)  for changes specifically  permitted by the
    Merger Agreement, and (ii) those representations and warranties that address
    matters only as of a particular date  are true and correct as of such  date,
    or  the Company  will have  breached or  failed in  any material  respect to
    perform or  comply  with  any material  obligation,  agreement  or  covenant
    required by the Merger Agreement to be performed or complied with by it;

        (d)  the Company will have breached or failed to perform in any material
    respect any of its covenants or agreements under this Agreement;

        (e) any change in the financial condition, business, assets, properties,
    prospects or results of operations of the Company and its subsidiaries taken
    as a  whole, that  would  constitute a  Material  Adverse Effect  will  have
    occurred,  or there will be any  event, condition, occurrence or development
    of a state of circumstances or facts which individually or in the  aggregate
    causes,  results in  or could  cause or  result in  such a  Material Adverse
    Effect;

        (f) the Merger Agreement  will have been  terminated in accordance  with
    its terms;

        (g) (i) it will have been publicly disclosed or Parent or Purchaser will
    have  otherwise learned  that any person,  entity or "group"  (as defined in
    Section 13(d)(3) of the Exchange Act),  other than Parent or its  affiliates
    or any group of which any of them is a member, will have acquired beneficial
    ownership  (determined pursuant to Rule 13d-3 promulgated under the Exchange
    Act) of more  than 19.9%  of any  class or series  of capital  stock of  the
    Company  (including  the  Shares),  through the  acquisition  of  stock, the
    formation of a  group or  otherwise, or will  have been  granted an  option,
    right  or warrant, conditional or otherwise, to acquire beneficial ownership
    of more than 19.9% of  any class or series of  capital stock of the  Company
    (including the Shares); or (ii) any person or group will have entered into a
    definitive agreement or agreement in principle with the Company with respect
    to an Acquisition Proposal or other business combination with the Company;

        (h)  the Board will have withdrawn, or modified or changed (including by
    amendment of the Schedule 14D-9) in a manner adverse to Parent or  Purchaser
    its  approval or  recommendation of the  Offer, the Merger  Agreement or the
    Merger or will have recommended an Acquisition Proposal, PROVIDED,  HOWEVER,
    that  if the Board modifies or changes  its recommendation of the Offer, the
    Merger Agreement  or the  Merger  or will  have recommended  an  Acquisition
    Proposal,  provided,  however, that  if the  Board  modifies or  changes its
    recommendation of the Offer,  the Merger Agreement or  the merger to  either
    express  its opinion and remain neutral  with respect thereto, or to provide
    that it is unable to take a position with respect thereto, such modification
    or change  will not  be deemed  to be  adverse to  Parent or  Purchaser  for
    purposes of this paragraph (h);

        (i)  the Company will not have  obtained all consents needed from Option
    holders under the Option Plans in order to pay them the amounts contemplated
    by the Merger Agreement in lieu of any and all rights of such Option holders
    under the Option Plans;

        (j) a "Purchase Period" under the Company's Employee Stock Purchase Plan
    will have been in effect at any time after November 30, 1995, or the Company
    will not have the absolute right to convert

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<PAGE>
    any outstanding options thereunder into the right to receive cash determined
    in accordance with the Merger Agreement in lieu of any and all rights of the
    participants under the Employee Stock Purchase Plan;

        (k) the Company will not have  obtained the consent with respect to  the
    Savannah Agreement;

        (l)  if POL has  not been sold pursuant  to a Higher  POL Offer, the POL
    Agreement shall not be  in full force  and effect, there  shall have been  a
    breach  of such POL Agreement or all  conditions precedent to the closing of
    the transactions contemplated by the POL  Agreement shall not be capable  of
    being satisfied promptly; and

        (m)  an  exemption  under  Section  8(a)  of  the  Pennsylvania Takeover
    Disclosure Law (as hereinafter defined) with respect to the Offer shall  not
    be effective;

which  in  the sole  judgment  of Parent  or Purchaser,  in  any such  case, and
regardless of the circumstances (including any  action or inaction by Parent  or
Purchaser  giving rise to  such condition) makes it  inadvisable to proceed with
the Offer or with such acceptance for payment or payments.

    The foregoing conditions are  for the sole benefit  of Parent and  Purchaser
and  may be waived by Parent  or Purchaser, in whole or  in part at any time and
from time to time in the sole discretion of Parent or Purchaser. The failure  by
Parent or Purchaser at any time to exercise any of the foregoing rights will not
be  deemed a  waiver of any  such right  and each such  right will  be deemed an
ongoing right which may be asserted at any time and from time to time.

    15.  REGULATORY APPROVALS; STATE TAKEOVER LAWS.

    GENERAL.   Except  as otherwise  disclosed  herein,  based on  a  review  of
publicly  available  information by  the  Company with  the  Commission, neither
Purchaser nor  Parent is  aware of  (i) any  license or  regulatory permit  that
appears  to be  material to  the business of  the Company  and its subsidiaries,
taken as a whole, that might be adversely affected by the acquisition of  Shares
by  Purchaser pursuant to the Offer or the  Merger or (ii) any approval or other
action by any  governmental, administrative or  regulatory agency or  authority,
domestic  or foreign, that would be required for the acquisition or ownership of
Shares by Purchaser as  contemplated herein. Should any  such approval or  other
action  be  required, Purchaser  currently  contemplates that  such  approval or
action would be sought. While Purchaser  does not currently intend to delay  the
acceptance  for payment  of Shares  tendered pursuant  to the  Offer pending the
outcome of any such matter, there can be no assurance that any such approval  or
action,  if needed, would  be obtained or would  be obtained without substantial
conditions or that adverse consequences might not result to the business of  the
Company,  Purchaser or  Parent or  that certain parts  of the  businesses of the
Company, Purchaser or Parent might not have to be disposed of in the event  that
such  approvals  were  not  obtained  or  any  other  actions  were  not  taken.
Purchaser's obligation under the Offer to accept for payment and pay for  Shares
is subject to certain conditions. See Section 14.

    ANTITRUST.   Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended (the "HSR Act") and  the rules that have been promulgated  thereunder
by  the Federal Trade  Commission ("FTC"), certain  acquisition transactions may
not be  consummated  unless  certain  information  has  been  furnished  to  the
Antitrust  Division of the Department of  Justice (the "Antitrust Division") and
the FTC  and  certain  waiting  period requirements  have  been  satisfied.  The
acquisition  of Shares by Purchaser pursuant to  the Offer is subject to the HSR
Act requirements.

    Under the provisions  of the HSR  Act applicable to  the purchase of  Shares
pursuant  to the Offer, such purchase may not  be made until the expiration of a
15-calendar day waiting period following the  required filing under the HSR  Act
by  Parent, which  Parent made  on November  28, 1995.  Accordingly, the waiting
period under the  HSR Act  will expire  at 11:59 P.M.,  New York  City time,  on
December  13, 1995, unless early termination of the waiting period is granted or
Parent receives a  request for  additional information  of documentary  material
prior  thereto. Pursuant to the HSR  Act, Parent has requested early termination
of the  waiting period  applicable to  the Offer.  There can  be no  assurances,
however,  that the 15-day  HSR Act waiting  period will be  terminated early. If
either the FTC or the Antitrust Division were to request additional  information
or  documentary material from  Parent, the waiting period  would expire at 11:59
P.M., New  York  City  time,  on  the tenth  calendar  day  after  the  date  of
substantial compliance by the Parent with such request.

                                       34
<PAGE>
Thereafter,  the waiting  period could  be extended  only by  court order  or by
consent of Parent. If the acquisition of Shares is delayed pursuant to a request
by the FTC or the Antitrust  Division for additional information or  documentary
material  pursuant  to the  HSR  Act, the  purchase  of and  payment  for Shares
pursuant to  the Offer  will be  deferred until  10 days  after the  request  is
substantially  complied with unless  the waiting period  is terminated sooner by
the FTC or the  Antitrust Division. See  Section 2. Only  one extension of  such
waiting period pursuant to a request for additional information is authorized by
the  rules promulgated under  the HSR Act,  except by court  order. Although the
Company is required to  file certain information  and documentary material  with
the  Antitrust Division and  the FTC in  connection with the  Offer, neither the
Company's failure to make  such filings nor  a request to  the Company from  the
Antitrust Division or the FTC for additional information or documentary material
will extend the waiting period.

    No  separate HSR  Act requirements  with respect  to the  Merger, the Merger
Agreement, and the Tender and Option Agreement will apply if the 15-day  waiting
period  relating  to  the  Offer  (as  described  above)  has  expired  or  been
terminated. However, if the Offer is withdrawn or if the filing relating to  the
Offer  is withdrawn prior to the expiration or termination of the 15-day waiting
period relating to  the Offer, the  acquisition of Shares  under the Tender  and
Option  Agreement and/or the Merger pursuant to  the Merger Agreement may not be
consummated until 30 calendar days after  receipt by the Antitrust Division  and
the  FTC of  the Notification and  Report Forms  of both Parent  and the Company
unless the 30-day period is earlier terminated by the Antitrust Division and the
FTC. Within such 30-day  period, the Antitrust Division  or the FTC may  request
additional  information or documentary materials from Parent and/or the Company,
in which event, the acquisition of Shares  pursuant to the Merger or the  Tender
and  Option Agreement, as the case may be,  may not be consummated until 20 days
after such  requests are  substantially complied  with by  both Parent  and  the
Company.  Thereafter, the waiting periods may be extended only by court order or
by consent.

    The Antitrust Division and the FTC frequently scrutinize the legality  under
the antitrust laws of transactions such as the proposed acquisition of Shares by
Purchaser  pursuant  to  the Offer.  At  any  time before  or  after Purchaser's
purchase of Shares,  either the Antitrust  Division or the  FTC could take  such
action under the antitrust laws as it deems necessary or desirable in the public
interest,  including seeking to enjoin the acquisition of Shares pursuant to the
Offer or seeking divestiture of Shares  acquired by Purchaser or divestiture  of
substantial   assets  of  Parent,  the  Company   or  any  of  their  respective
subsidiaries. Private parties may  also bring legal  action under the  antitrust
laws  under  certain  circumstances.  Based  upon  an  examination  of  publicly
available information  relating  to  the  businesses in  which  Parent  and  its
subsidiaries  and  the Company  and its  subsidiaries  are involved,  Parent and
Purchaser  believe  that  the  Offer  will  not  violate  the  antitrust   laws.
Nevertheless,  there  can be  no  assurance that  a  challenge to  the  Offer on
antitrust grounds will not be made or,  if a challenge is made, what the  result
will be.

    STATE  TAKEOVER LAWS.  A number of  states throughout the United States have
enacted takeover statutes that purport, in varying degrees, to be applicable  to
attempts  to acquire  securities of corporations  that are  incorporated or have
assets, stockholders, executive offices or places of business in such states. In
EDGAR V.  MITE CORP.,  the Supreme  Court of  the United  States held  that  the
Illinois  Business Takeover Act, which involved  state securities laws that made
the takeover  of  certain corporations  more  difficult, imposed  a  substantial
burden  on interstate commerce and therefore  was unconstitutional. In CTS CORP.
V. DYNAMICS CORP. OF  AMERICA, however, the Supreme  Court of the United  States
held  that a state may,  as a matter of corporate  law and, in particular, those
laws concerning corporate  governance, constitutionally  disqualify a  potential
acquiror  from  voting on  the  affairs of  a  target corporation  without prior
approval of the remaining stockholders, provided that such laws were  applicable
only under certain conditions.

    The  Pennsylvania  Takeover  Disclosure Law  ("PTDL")  purports  to regulate
certain attempts to acquire a corporation which (1) is organized under the  laws
of  Pennsylvania  or (2)  has its  principal place  of business  and substantial
assets located in Pennsylvania. In CRANE CO. V. LAM, 509 F. Supp. 782 (E.D.  Pa.
1981), the United States District Court for the Eastern District of Pennsylvania
preliminarily enjoined, on grounds arising under the United States Constitution,
enforcement  of at least the portion of the PTDL involving the pre-offer waiting
period thereunder. Section 8(a) of the PTDL provides an exemption for any  offer
to  purchase securities as to which the board of directors of the target company
recommends acceptance to its

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<PAGE>
shareholders, if  at  the time  such  recommendation is  first  communicated  to
shareholders  the  offeror  files with  the  Pennsylvania  Securities Commission
("PSC") a  copy  of  the  Schedule  14D-1  and  certain  other  information  and
materials,  including an  undertaking to notify  security holders  of the target
company that a  notice has been  filed with the  PSC which contains  substantial
additional  information about the offer and which is available for inspection at
the PSC's  principal  office during  business  hours. While  reserving  and  not
waiving  its right to challenge the validity of the PTCL or its applicability to
the Offer,  the Purchaser  is making  such a  filing with  the PSC  in order  to
qualify for such exemption from the PTCL. Additional information about the Offer
has  been  filed with  the Pennsylvania  Securities  Commission pursuant  to the
Pennsylvania Takeover  Disclosure Law  and is  available for  inspection at  the
Pennsylvania  Securities Commission's  office at Eastgate  Office Building, 1010
North 7th Street, Harrisburg, PA 17102-1410, during business hours.

    Chapter 25 of Pennsylvania Law contains other provisions relating  generally
to   takeovers  and   acquisitions  of   certain  publicly   owned  Pennsylvania
corporations such as the Company that have a class or series of shares  entitled
to vote generally in the election of directors registered under the Exchange Act
(a  "registered corporation"). The following discussion  is a general and highly
abbreviated summary of certain features of  such chapter, is not intended to  be
complete   or  to  completely  address   potentially  applicable  exceptions  or
exemptions, and is qualified in  its entirety by reference  to the full text  of
Chapter 25 of Pennsylvania Law.

    In  addition to other provisions not applicable  to the Offer or the Merger,
Subchapter 25D of Pennsylvania Law  includes provisions requiring approval of  a
merger of a registered corporation with an "interested shareholder" in which the
"interested  shareholder" is treated differently from other shareholders, by the
affirmative vote of the shareholders entitled to cast at least a majority of the
votes that all shareholders other  than the interested shareholder are  entitled
to  cast  with respect  to the  transaction  without counting  the votes  of the
interested shareholders. This disinterested shareholder approval requirement  is
not  applicable to  a transaction  (i) approved  by a  majority of disinterested
directors, (ii) in which the consideration to be received by shareholders is not
less than the highest amount paid by the interested shareholder in acquiring his
shares,  or  (iii)  effected  without  submitting  the  Merger  to  a  vote   of
shareholders  as permitted  in Section  1924(b)(1)(ii) of  the Pennsylvania Law.
Purchaser  currently  believes  that  the  disinterested  shareholder   approval
requirement  of Subchapter 25D will not be applicable to the contemplated Merger
because of prior disinterested Board approval.

    Subchapter 25E of Pennsylvania Law, which addresses "control  transactions,"
requires under certain circumstances any person who acquires at least 20% of the
voting  power of a registered corporation to offer to purchase up to the balance
of the  voting shares  of the  corporation  at the  price determined  under  the
statute,  which may  not be less  than the highest  price per share  paid by the
controlling person or group at any time  during the 90-day period ending on  and
including  the date of  the control transaction,  plus an increment representing
any value, including  without limitation,  any proportion of  value payable  for
acquisition  of control of  the corporation, that  may not be  reflected in such
price. A "control  transaction" will  occur if Purchaser  acquires voting  power
over  20%  or more  of the  Shares of  the Company  by purchasing  Shares either
pursuant to the Offer or the Tender and Option Agreement. See Section 11.

    Subchapter 25F  of Pennsylvania  Law prohibits  under certain  circumstances
certain  "business  combinations," including  mergers  and sales  or  pledges of
significant assets, of a registered corporation with an "interested shareholder"
for a  period  of  five  years. Subchapter  25F  exempts  business  combinations
approved by the board or directors prior to a shareholder becoming an interested
shareholder and transactions with interested shareholders who beneficially owned
shares with at least 15% of the total voting power of a corporation on March 23,
1988 and remain so. The Company has represented to the Purchaser that Subchapter
25F is not applicable to the contemplated Merger or the POL Agreement.

    Subchapter   25G   of   Pennsylvania   Law,   relating   to   "control-share
acquisitions," prevents under certain circumstances the owner of a control-share
block of shares  of a registered  corporation from voting  such shares unless  a
majority  of the "disinterested"  shares approve such  voting rights. Failure to
obtain such approval may result in a  forced sale by the control-share owner  of
the  control-share block to the corporation at  a possible loss. The purchase by
Purchaser of Shares, other than certain Shares beneficially owned by the Selling
Shareholders satisfying the  requirements for exemption  from the definition  of
"control shares," may

                                       36
<PAGE>
be  deemed  to  constitute a  control-share  acquisition, with  the  result that
Purchaser would  not have  voting  rights with  respect to  such  control-shares
unless the voting rights are restored by a disinterested shareholder vote.

    Subchapter  25H  of Pennsylvania  Law, relating  to disgorgement  by certain
controlling shareholders  of  a  registered  corporation,  provides  that  under
certain  circumstances  any profit  realized by  a  controlling person  from the
disposition of  shares  of the  corporation  to  any person  (including  to  the
corporation  under  Subchapter  25G or  otherwise)  will be  recoverable  by the
corporation.

    Subchapter 25I  of  Pennsylvania  Law entitles  "eligible  employees"  of  a
registered  corporation to  a lump sum  payment of  severance compensation under
certain circumstances  if the  employee is  terminated, other  than for  willful
misconduct,  within  90  days  before  voting  rights  lost  as  a  result  of a
control-share acquisition are restored by a vote of disinterested  shareholders.
Subchapter  25J of Pennsylvania  Law provides protection  against termination or
impairment under  certain  circumstances  of  "covered  labor  contracts"  of  a
registered  corporation as a  result of a  "business combination" transaction if
the business operation to which the covered labor contract relates was owned  by
the registered corporation at the time voting rights are restored by shareholder
vote  after a  control-share acquisition.  Although Purchaser  will lose certain
voting rights  as  a  result  of its  "control-share  acquisition"  pursuant  to
Subchapter  25G, if the contemplated Merger is consummated without a vote of the
Company's shareholders as is  currently intended, it will  not be necessary,  in
order  to consummate the Merger,  for Purchaser to seek  a vote of disinterested
Company shareholders in order to restore  voting rights with respect to  control
shares  of the  Company owned by  Purchaser. Therefore, Subchapters  25I and 25J
should not have any adverse effect on Purchaser.

    Section 2504 of Pennsylvania Law provides that the applicability of  Chapter
25  of Pennsylvania Law to a registered  corporation having a class or series of
shares entitled to vote generally in the election of directors registered  under
the  Exchange  Act  or  otherwise  satisfying  the  definition  of  a registered
corporation  under  Section   2502(1)  of  Pennsylvania   Law  shall   terminate
immediately  upon  the  termination  of  the  status  of  the  corporation  as a
registered corporation.  Purchaser  intends to  seek  to cause  the  Company  to
terminate  the registration of the  Shares under the Exchange  Act as soon after
consummation  of  the  Offer  as   the  requirements  for  termination  of   the
registration of the Shares are met.

    Except  for the filing pursuant to Section 8(a) of the PTDL described above,
neither Purchaser  nor Parent  has currently  complied with  any state  takeover
statute   or  regulation.  Purchaser   reserves  the  right   to  challenge  the
applicability or validity of any state  law purportedly applicable to the  Offer
or  the Merger  and nothing in  this Offer to  Purchaser or any  action taken in
connection with the Offer or the Merger  is intended as a waiver of such  right.
If  it is asserted that any state takeover statute is applicable to the Offer or
the Merger and an appropriate court  does not determine that it is  inapplicable
or invalid as applied to the Offer or the Merger, Purchaser might be required to
file  certain information with, or to receive approvals from, the relevant state
authorities, and Purchaser  might be  unable to accept  for payment  or pay  for
Shares  tendered pursuant to the Offer, or  be delayed in consummating the Offer
or the Merger. In such case, Purchaser  may not be obliged to accept payment  or
pay for any Shares tendered pursuant to the Offer.

    16.   FEES  AND EXPENSES.   Except  as set  forth below,  neither Parent nor
Purchaser will pay any fees or commissions to any broker, dealer or other person
for soliciting tenders of Shares pursuant to the Offer.

    CS First Boston is acting as Dealer Manager in connection with the Offer and
has provided  certain financial  advisory services  to Parent  and Purchaser  in
connection  with the Offer and the Merger. As compensation for CS First Boston's
services as financial advisor, Parent will pay CS First Boston a transaction fee
upon the consummation of the Offer. In addition, Parent has agreed to  reimburse
CS  First Boston for all reasonable out-of-pocket expenses, including attorneys'
fees, incurred by  CS First  Boston, in connection  with its  role as  financial
advisor  and Dealer Manager, and Parent has  agreed to indemnify CS First Boston
and  certain  related  persons  against  certain  liabilities  and  expenses  in
connection  with its role as financial  advisor and Dealer Manager. In addition,
Parent has agreed to pay directly, or reimburse CS First Boston, as the case may
be,  for  (i)  all  expenses  incurred  by  CS  First  Boston  relating  to  the
preparation,  printing, filing,  mailing and  publishing of  all Offer material,
(ii) all fees and expenses of  the Depositary and Information Agent referred  to
in  this Offer to Purchase, (iii) all advertising charges in connection with the

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<PAGE>
Offer, including those of  any public relations firm  or other person or  entity
rendering  services in connection  therewith, (iv) all fees,  if any, payable to
dealers  (including  CS  First  Boston),  and  banks  and  trust  companies   as
reimbursement  for  their customary  mailing and  handling expenses  incurred in
forwarding the Offer  material to  their customers and  (v) all  other fees  and
expenses  incurred by CS First Boston in  connection with the Offer or otherwise
in connection  with the  performance  of CS  First Boston's  services  hereunder
(including  fees  and disbursements  of CS  First  Boston's legal  counsel). All
payments to be made by Parent pursuant  to the Dealer Manager Agreement will  be
made  promptly against delivery to Parent of statements therefor. Parent will be
liable for  the  foregoing payments  whether  or  not the  Offer  is  commenced,
withdrawn, terminated or canceled prior to the purchase of any Shares or whether
Purchaser  or any of its affiliates acquires any Shares pursuant to the Offer or
whether CS First Boston  withdraws pursuant to Section  4 of the Dealer  Manager
Agreement.  In addition, Purchaser has agreed  to hold harmless and indemnify CS
First Boston from and  against losses arising out  of certain situations as  set
forth in the Dealer Manager Agreement.

    Purchaser  has retained Georgeson  & Company Inc. to  act as the Information
Agent in connection with the Offer. The Information Agent may contact holders of
Shares by mail, telephone, facsimile, telegraph and personal interviews and  may
request  brokers, dealers  and other  nominee shareholders  to forward materials
relating to the Offer to beneficial owners of Shares. The Information Agent will
receive  reasonable  and  customary  compensation  for  its  services,  will  be
reimbursed for certain reasonable out-of-pocket expenses and will be indemnified
against  certain  liabilities and  expenses  in connection  therewith, including
certain liabilities under the Federal securities laws.

    In addition, First Chicago  Trust Company of New  York has been retained  as
the  Depositary. The Depositary  has not been retained  to make solicitations or
recommendations  in  its  role  as  Depositary.  The  Depositary  will   receive
reasonable  and customary compensation for its  services, will be reimbursed for
certain reasonable  out-of-pocket  expenses  and  will  be  indemnified  against
certain  liabilities  and expenses  in  connection therewith,  including certain
liabilities under  the Federal  securities  laws. Brokers,  dealers,  commercial
banks  and trust companies will be reimbursed by Purchaser for customary mailing
and handling expenses incurred by them in forwarding offering material to  their
customers.

    17.   MISCELLANEOUS.  Purchaser  is not aware of  any jurisdiction where the
making of  the Offer  is prohibited  by any  administrative or  judicial  action
pursuant  to any valid  state statute. If  Purchaser becomes aware  of any valid
state statute  prohibiting the  making of  the Offer  or the  acceptance of  the
Shares  pursuant thereto, Purchaser will make a good faith effort to comply with
such state statute. If,  after such good faith  effort, Purchaser cannot  comply
with  any such state statute, the Offer will not be made to (nor will tenders be
accepted from or  on behalf  of) the  holders of Shares  in such  state. In  any
jurisdiction  where the securities, blue sky or  other laws require the Offer to
be made by a licensed broker or dealer,  the Offer will be deemed to be made  on
behalf  of Purchaser  by one  or more  registered brokers  or dealers  which are
licensed under the laws of such jurisdiction.

    NO  PERSON  HAS  BEEN  AUTHORIZED  TO  GIVE  ANY  INFORMATION  OR  MAKE  ANY
REPRESENTATION  ON BEHALF OF PARENT OR PURCHASER  NOT CONTAINED IN THIS OFFER TO
PURCHASE OR IN THE LETTER OF TRANSMITTAL AND, IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED.

    Parent and  Purchaser have  filed with  the Commission  the Schedule  14D-1,
together  with  exhibits,  pursuant  to  Rule 14d-3  of  the  General  Rules and
Regulations under the  Exchange Act, furnishing  certain additional  information
with  respect to the Offer, and may  file amendments thereto. The Schedule 14D-1
and any amendments thereto, including exhibits, may be inspected at, and  copies
may  be obtained from,  the same places and  in the same manner  as set forth in
Section 8 (except that they will not be available at the regional offices of the
Commission).

                                          Baxter CVG Services II, Inc.

November 29, 1995

                                       38
<PAGE>
                                   SCHEDULE I
               INFORMATION CONCERNING THE DIRECTORS AND EXECUTIVE
                OFFICERS OF PARENT, PURCHASER AND INTERNATIONAL

    1.   DIRECTORS  AND EXECUTIVE OFFICERS  OF PARENT.   Set forth  below is the
name, current business address, citizenship and the present principal occupation
or employment and  material occupations, positions,  offices or employments  for
the  past five years  of each director  and executive officer  of Parent. Unless
otherwise indicated, each person identified below  is employed by Parent or  its
affiliates,  and has been employed by Parent  or its affiliates, in positions of
increasing responsibility, for  the past  five years. The  principal address  of
Parent  and, unless otherwise indicated below,  the current business address for
each  individual  listed  below  is  One  Baxter  Parkway,  Deerfield,  Illinois
60015-4633.  Each such person (other than Brian P. Anderson, who is a citizen of
Jamaica, and Jack L. McGinley, who is a  citizen of Canada) is a citizen of  the
United States. Directors are identified by an asterisk.

<TABLE>
<CAPTION>
                                                 PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
NAME                                         MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ------------------------------------  -----------------------------------------------------------------
<S>                                   <C>
Vernon R. Loucks Jr.*...............  Chairman and Chief Executive Officer of International.
Lester B. Knight*...................  President.
Arthur F. Staubitz..................  Senior  Vice President  and General  Counsel. Former  Senior Vice
                                       President, Secretary and General Counsel of Amgen, Inc.
Harry M. Jansen Kraemer Jr.*........  Senior Vice President and Chief Financial Officer.
Timothy B. Anderson.................  Group Vice President.
Joseph F. Damico....................  Group Vice President.
Donald W. Joseph....................  Group Vice President.
Darnell Martin......................  Group Vice President.
Jack L. McGinley....................  Group Vice President.
Terrence J. Mulligan................  Group Vice President.
Michael A. Mussallem................  Group Vice President.
John F. Gaither Jr..................  Corporate Vice President.
Roberto E. Perez....................  Corporate Vice President.
Kathy B. White......................  Vice  President  and  Chief  Information  Officer.  Former   Vice
                                       President,  Information  Systems  and  Services  at AlliedSignal
                                       Corporation.  Former  Vice  President,  Corporate  Services   at
                                       Guilford Mills, Inc.
A. Gerard Sieck.....................  Secretary.
Brian P. Anderson...................  Controller.
</TABLE>

                                       39
<PAGE>
    2.   DIRECTORS AND EXECUTIVE OFFICERS OF  PURCHASER.  Set forth below is the
name, current business address, citizenship and the present principal occupation
or employment and  material occupations, positions,  offices or employments  for
the  past five years  of each director  and executive officer  of Purchaser. The
principal address  of  Purchaser  and  the current  business  address  for  each
individual  listed  below, unless  otherwise indicated,  is One  Baxter Parkway,
Deerfield, Illinois 60015-4633. Directors are identified by an asterisk.

<TABLE>
<CAPTION>
     NAME AND CURRENT                        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
     BUSINESS ADDRESS                    MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------  ---------------------------------------------------------------------------
<S>                          <C>
Michael A. Mussallem*        President of  Purchaser;  Group Vice  President  of Parent  and  divisional
                              president  of the Cardiovascular Group of  Parent (and holder of positions
                              of increasing responsibility at Parent for the past five years).
John H. Kehl, Jr.*           Chief Financial  Officer of  Purchaser; divisional  vice president  of  the
17221 Red Hill Avenue         Cardiovascular  Group  of Parent  (and holder  of positions  of increasing
Irvine, Califoria 92714       responsibility at Parent for the past five years).
Jay P. Wertheim*             Vice President and Secretary of Purchaser; divisional vice president of the
17221 Red Hill Avenue         Cardiovascular Group of Parent since March 1995; former partner in the law
Irvine, Califoria 92714       firm of Perkins Coie.
</TABLE>

    3.  DIRECTORS AND EXECUTIVE OFFICERS  OF INTERNATIONAL.  Set forth below  is
the  name,  current  business  address, citizenship  and  the  present principal
occupation  or  employment  and  material  occupations,  positions,  offices  or
employments  for the past five  years of each director  and executive officer of
International. Unless  otherwise  indicated,  each person  identified  below  is
employed  by  International  or  its subsidiaries,  and  has  held  positions of
increasing responsibility at  International or  its subsidiaries,  for the  past
five  years.  The  principal  address  of  International  and,  unless otherwise
indicated below, the current business  address for each individual listed  below
is  One Baxter Parkway, Deerfield, Illinois  60015-4633. Each such person (other
than Frank R. Frame, who is a  citizen of the United Kingdom, Fabrizio  Bonanni,
who is a citizen of Italy and Brian P. Anderson, who is a citizen of Jamaica) is
a  citizen  of  the United  States.  Directors  who are  not  also  employees of
International or its subsidiaries are identified by one asterisk. Directors  who
are  also employees of  International or its subsidiaries  are identified by two
asterisks.

<TABLE>
<CAPTION>
                                                 PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
NAME                                         MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ------------------------------------  -----------------------------------------------------------------
<S>                                   <C>
Silas S. Cathcart*..................  Director of General Electric  Company, Illinois Tool Works,  Inc.
                                       and  The Quaker Oats  Company. Trustee of  Northern Funds Mutual
                                       Fund. Retired Chairman of the Board and Chief Executive  Officer
                                       Kidder, Peabody Group Inc.
John W. Colloton*...................  Vice  President for Statewide Health  Services for the University
                                       of  Iowa.  Director  of  Iowa  State  Bank  &  Trust,  OncorMed,
                                       Iowa-Illinois  Gas  and Electric  Company and  Iowa-South Dakota
                                       Blue Cross and Blue Shield (IASD).
Susan Crown*........................  Vice President  of  the  Henry Crown  and  Company.  Director  of
                                       Caribbean  International News Corporation,  Illinois Tool Works,
                                       Inc. Trustee of Northern Funds Mutual Fund.
Mary Johnston Evans*................  Director of  Household International,  Inc., Sun  Company,  Delta
                                       Airlines,  Inc., The  Dunn & Bradstreet  Corporation and Scudder
                                       New Europe Fund. Former Director and Vice Chairman of Amtrak.
</TABLE>

                                       40
<PAGE>
<TABLE>
<CAPTION>
                                                 PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
NAME                                         MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ------------------------------------  -----------------------------------------------------------------
<S>                                   <C>
Frank R. Frame*.....................  Advisor to the Board HSBC Holdings plc. Chairman of Wallem  Group
                                       Limited.  Deputy  Chairman  of Time  Products  plc.  Director of
                                       Edinburgh Dragon  Trust plc  and HSBC  Global Investment  Funds.
                                       Retired  Deputy Chairman of  The Hong Kong  and Shanghai Banking
                                       Corporation Limited.
David W. Grainger*..................  Chairman of the Board of W.W. Grainger, Inc.
Martha R. Ingram*...................  Chairman of the Board of Ingram Industries Inc. Director of First
                                       American Corporation.
Arnold J. Levine, Ph.D.*............  Professor of  Biology  and  Chairman  of  the  Molecular  Biology
                                       Department Princeton University.
Georges C. St. Laurent Jr.*.........  Chairman  of  the Board  and Chief  Executive Officer  of Western
                                       Bank.
Monroe E. Trout, M.D.*..............  Chairman Emeritus of  the Board of  American Healthcare  Systems.
                                       Director    of    Cytyo   Corporation,    Science   Applications
                                       International Corporation  (SAIC),  Gensia, Inc.  and  The  West
                                       Company, Inc.
Fred L. Turner*.....................  Senior  Chairman  of  the  Board and  Chairman  of  the Executive
                                       Committee McDonalds Corporation. Director of Aon Corporation and
                                       W.W. Grainger, Inc.
Vernon R. Loucks Jr.**..............  Chairman and Chief Executive Officer. Director of  Anheuser-Busch
                                       Companies,  Inc.,  The  Dunn &  Bradstreet  Corporation, Emerson
                                       Electric Co. and The Quaker Oats Company.
Manuel A. Baez......................  Executive Vice President.
Lester B. Knight**..................  Executive Vice President.
Harry M. Jansen Kraemer Jr.**.......  Senior Vice President and Chief Financial Officer.
Arthur F. Staubitz..................  Senior Vice  President and  General Counsel.  Former Senior  Vice
                                       President, Secretary and General Counsel of Amgen, Inc.
Michael J. Tucker...................  Senior Vice President.
Herbert E. Walker...................  Senior Vice President.
David J. Aho........................  Vice President.
Fabrizio Bonanni....................  Vice President.
John F. Gaither Jr..................  Vice President.
Kshitij Mohan.......................  Vice President.
John L. Quick.......................  Vice President.
Kathy B. White......................  Vice   President  and  Chief  Information  Officer.  Former  Vice
                                       President, Information  Systems  and  Services  at  AlliedSignal
                                       Corporation.   Former  Vice  President,  Corporate  Services  at
                                       Guilford Mills, Inc.
A. Gerard Sieck.....................  Secretary.
Lawrence D. Damron..................  Treasurer.
Brian P. Anderson...................  Controller. Former partner in  the international accounting  firm
                                       of Deloitte & Touche.
</TABLE>

                                       41
<PAGE>
                                                                         ANNEX A

                 PENNSYLVANIA BUSINESS CORPORATION LAW OF 1988
                                   CHAPTER 25
                       SUBCHAPTER E. CONTROL TRANSACTIONS

    2541  APPLICATION AND EFFECT OF SUBCHAPTER. --  (a)  General rule. -- Except
as otherwise  provided  in  this  section, this  subchapter  shall  apply  to  a
registered corporation unless:

        (1)  the registered corporation is  one described in section 2502(1)(ii)
    or (2) (relating to registered corporation status):

        (2) the bylaws, by amendment adopted either:

           (i) by March 23, 1984; or

           (ii) on or after March 23, 1988, and on or before June 21, 1988; and,
       in either  event, not  subsequently rescinded  by an  article  amendment,
       explicitly  provide that this  subchapter shall not  be applicable to the
       corporation in the case of a corporation which on June 21, 1988, did  not
       have  outstanding  one or  more classes  or  series of  preference shares
       entitled, upon the occurrence of a default in the payment of dividends or
       another similar contingency, to  elect a majority of  the members of  the
       board  of directors  (a bylaw adopted  on or  before June 21,  1988, by a
       corporation excluded from the scope of this paragraph by the  restriction
       of this paragraph relating to certain outstanding preference shares shall
       be ineffective unless ratified under paragraph (3));

        (3)  the bylaws of  which explicitly provide  that this subchapter shall
    not be applicable to the corporation  by amendment ratified by the board  of
    directors on or after December 19, 1990, and on or before March 19, 1991, in
    the case of a corporation:

           (i)  which on June 21,  1988, had outstanding one  or more classes or
       series of preference shares entitled, upon the occurrence of a default in
       the payment  of dividends  or  another similar  contingency, to  elect  a
       majority of the members of the board of directors; and

           (ii) the bylaws of which on that date contained a provision described
       in paragraph (2); or

        (4)  the articles explicitly  provide that this  subchapter shall not be
    applicable to  the  corporation by  a  provision included  in  the  original
    articles,  by an article amendment adopted prior  to the date of the control
    transaction and prior to  or on March 23,  1988, pursuant to the  procedures
    then applicable to the corporation, or by an article amendment adopted prior
    to  the date of  the control transaction  and subsequent to  March 23, 1988,
    pursuant to both:

           (i) the procedures then applicable to the corporation; and

           (ii) unless such proposed amendment has been approved by the board of
       directors of the corporation, in which event this subparagraph shall  not
       be  applicable, the affirmative vote of the shareholders entitled to cast
       at least 80%  of the votes  which all shareholders  are entitled to  cast
       thereon.

A  reference in the articles or bylaws  to former section 910 (relating to right
of shareholders to receive payment  for shares following a control  transaction)
of the act of May 5, 1933 (P.L. 364, No. 106), known as the Business Corporation
Law  of 1933, shall be  a reference to this subchapter  for the purposes of this
section. See section 101(c) (relating to references to prior statutes).

    (b) Inadvertent  transactions. --  This subchapter  shall not  apply to  any
person or group that inadvertently becomes a controlling person or group if that
controlling  person  or  group, as  soon  as  practicable, divests  itself  of a
sufficient amount of its  voting shares so  that it is  no longer a  controlling
person or group.

                                      A-1
<PAGE>
    (c)  Certain  subsidiaries.  --  This  subchapter  shall  not  apply  to any
corporation  that  on  December  23,  1983,  was  a  subsidiary  of  any   other
corporation.

    2542  DEFINITIONS.  -- The  following words  and phrases  when used  in this
subchapter shall have  the meanings  given to them  in this  section unless  the
context clearly indicates otherwise:

    "Control transaction." The acquisition by a person or group of the status of
a controlling person or group.

    "Controlling  person or group." A controlling  person or group as defined in
section 2543 (relating to controlling person or group).

    "Fair value." A value not less than the highest price paid per share by  the
controlling  person or group at any time  during the 90-day period ending on and
including the date of the control transaction plus an increment representing any
value, including, without limitation,  any proportion of  any value payable  for
acquisition  of control of  the corporation, that  may not be  reflected in such
price.

    "Partial payment amount." The amount per share specified in section 2545 (c)
(2) (relating to contents of notice).

    "Subsidiary." Any corporation as to which  any other corporation has or  has
the  right  to acquire,  directly  or indirectly,  through  the exercise  of all
warrants, options and rights and  the conversion of all convertible  securities,
whether  issued or  granted by  the subsidiary  or otherwise,  voting power over
voting shares of the subsidiary that  would entitle the holders thereof to  cast
in excess of 50% of the votes that all shareholders would be entitled to cast in
the  election of directors of such subsidiary, except that a subsidiary will not
be deemed to  cease being a  subsidiary as  long as such  corporation remains  a
controlling person or group within the meaning of this subchapter.

    "Voting  shares." The term shall have  the meaning specified in section 2552
(relating to definitions).

    2543 CONTROLLING PERSON OR GROUP. -- (a)   General rule. -- For the  purpose
of this subchapter, a "controlling person or group" means a person who has, or a
group  of persons acting in concert that has, voting power over voting shares of
the registered corporation  that would entitle  the holders thereof  to cast  at
least  20% of the  votes that all shareholders  would be entitled  to cast in an
election of directors of the corporation.

    (b) Exceptions generally. -- Notwithstanding subsection (a):

        (1) A person or group which  would otherwise be a controlling person  or
    group  within the meaning of this section  shall not be deemed a controlling
    person or group unless, subsequent  to the later of  March 23, 1988, or  the
    date this subchapter becomes applicable to a corporation by bylaw or article
    amendment  or otherwise,  that person or  group increases  the percentage of
    outstanding voting shares of the corporation over which it has voting  power
    to  in  excess  of  the  percentage  of  outstanding  voting  shares  of the
    corporation over which that person or  group had voting power on such  later
    date,  and to at least the amount specified in subsection (a), as the result
    of forming or enlarging a group or acquiring, by purchase, voting power over
    voting shares of the corporation.

        (2) No person or  group shall be  deemed to be  a controlling person  or
    group  at any  particular time  if voting  power over  any of  the following
    voting shares is required to  be counted at such time  in order to meet  the
    20% minimum:

           (i)  Shares which  have been  held continuously  by a  natural person
       since January 1, 1983, and which are held by such natural person at  such
       time.

                                      A-2
<PAGE>
           (ii)  Shares which  are held  at such time  by any  natural person or
       trust, estate,  foundation or  other  similar entity  to the  extent  the
       shares  were  acquired solely  by gift,  inheritance, bequest,  devise or
       other testamentary distribution or series of these transactions, directly
       or indirectly, from a natural person who had acquired the shares prior to
       January 1, 1983.

          (iii) Shares  which were  acquired pursuant  to a  stock split,  stock
       dividend,  reclassification or  similar recapitalization  with respect to
       shares described under  this paragraph that  have been held  continuously
       since  their issuance by the corporation  by the natural person or entity
       that acquired them from the  corporation or that were acquired,  directly
       or  indirectly, from such natural person  or entity, solely pursuant to a
       transaction or series of transactions described in subparagraph (ii), and
       that are held at  such time by  a natural person  or entity described  in
       subparagraph (ii).

          (iv)   Control  shares  as  defined   in  section  2562  (relating  to
       definitions) which have not yet  been accorded voting rights pursuant  to
       section  2564(a)  (relating  to voting  rights  of shares  acquired  in a
       control-share acquisition).

           (v) Shares, the voting rights of  which are attributable to a  person
       under subsection (d) if:

               (A)  the person acquired the  option or conversion right directly
           from or made the  contract, arrangement or  understanding or has  the
           relationship directly with the corporation; and

               (B)  the person does not at  the particular time own or otherwise
           effectively possess the voting rights of the shares.

          (vi) Shares acquired directly from the corporation or an affiliate  or
       associate,  as defined in section 2552  (relating to definitions), of the
       corporation by  a  person  engaged  in  business  as  an  underwriter  of
       securities  who  acquires the  shares through  his participation  in good
       faith in a firm commitment  underwriting registered under the  Securities
       Act of 1933.

        (3)  In  determining  whether  a  person  or  group  is  or  would  be a
    controlling  person  or  group  at  any  particular  time,  there  shall  be
    disregarded  voting power arising from a  contingent right of the holders of
    one or more  classes or series  of preference  shares to elect  one or  more
    members  of the  board of  directors upon  or during  the continuation  of a
    default in  the payment  of  dividends on  such  shares or  another  similar
    contingency.

    (c)  Certain record holders. --  A person shall not  be a controlling person
under subsection (a) if the person holds voting power, in good faith and not for
the purpose of circumventing this subchapter, as an agent, bank, broker, nominee
or trustee for one or more beneficial owners who do not individually or, if they
are a group acting  in concert, as  a group have the  voting power specified  in
subsection  (a),  or who  are not  deemed  a controlling  person or  group under
subsection (b).

    (d) Existence of  voting power. --  For the purposes  of this subchapter,  a
person  has  voting power  over  a voting  share if  the  person has  or shares,
directly   or   indirectly,   through   any   option,   contract,   arrangement,
understanding,  conversion right  or relationship,  or by  acting jointly  or in
concert or otherwise, the power to vote, or to direct the voting of, the  voting
share.

    2544  RIGHT OF SHAREHOLDERS TO RECEIVE PAYMENT  FOR SHARES. -- Any holder of
voting shares of a registered corporation that becomes the subject of a  control
transaction  who shall object to the transaction shall be entitled to the rights
and remedies provided in this subchapter.

    2545 NOTICE TO SHAREHOLDERS. -- (a)   General rule. -- Prompt notice that  a
control  transaction has  occurred shall be  given by the  controlling person or
group to:

        (1) Each shareholder  of record  of the  registered corporation  holding
    voting shares.

                                      A-3
<PAGE>
        (2)  To the court, accompanied  by a petition to  the court praying that
    the fair  value  of the  voting  shares  of the  corporation  be  determined
    pursuant  to section  2547 (relating to  valuation procedures)  if the court
    should receive pursuant  to section 2547  certificates from shareholders  of
    the  corporation  or an  equivalent request  for transfer  of uncertificated
    securities.

    (b) Obligations of the corporation. -- If the controlling person or group so
requests, the corporation  shall, at the  option of the  corporation and at  the
expense  of the person or group, either  furnish a list of all such shareholders
to the person or group or mail the notice to all such shareholders.

    (c) Contents of notice. -- The notice shall state that:

        (1) All shareholders are entitled to  demand that they be paid the  fair
    value of their shares.

        (2)  The minimum value the shareholder can receive under this subchapter
    is the  highest price  paid per  share by  the controlling  person or  group
    within  the 90-day period  ending on and  including the date  of the control
    transaction, and stating that value.

        (3) If the shareholder believes the fair value of his shares is  higher,
    that  this subchapter  provides an  appraisal procedure  for determining the
    fair value of such shares, specifying the name of the court and its  address
    and  the  caption of  the  petition referenced  in  subsection (a)  (2), and
    stating that  the  information is  provided  for  the possible  use  by  the
    shareholder  in electing to  proceed with a  court-appointed appraiser under
    section 2547.

There shall  be  included in,  or  enclosed with,  the  notice a  copy  of  this
subchapter.

    (d)  Optional procedure. The controlling person or group may, at its option,
supply with the notice referenced in  subsection (c) a form for the  shareholder
to  demand payment of  the partial payment amount  directly from the controlling
person or group  without utilizing  the court-appointed  appraiser procedure  of
section 2547, requiring the shareholder to state the number and class or series,
if any, of the shares owned by him, and stating where the payment demand must be
sent and the procedures to be followed.

    2546  SHAREHOLDER DEMAND FOR FAIR VALUE. --  (a)  General rule. -- after the
occurrence of  the control  transaction,  any holder  of  voting shares  of  the
registered  corporation  may, prior  to or  within a  reasonable time  after the
notice required by section 2545 (relating  to notice to shareholders) is  given,
which  time period may  be specified in  the notice, make  written demand on the
controlling person or group for payment of the amount provided in subsection (c)
with respect to the  voting shares of the  corporation held by the  shareholder,
and  the controlling person or group shall be required to pay that amount to the
shareholder pursuant to the  procedures specified in  section 2547 (relating  to
valuation procedures).

    (b)  Contents of demand.  -- The demand  of the shareholder  shall state the
number and class or series, if any, of  the shares owned by him with respect  to
which the demand is made.

    (c)  Measure of  value. --  A shareholder  making written  demand under this
section shall be entitled to  receive cash for each of  his shares in an  amount
equal to the fair value of each voting share as of the date on which the control
transaction  occurs,  taking into  account  all relevant  factors,  including an
increment representing  a proportion  of any  value payable  for acquisition  of
control of the corporation.

    (d)   Purchases  independent  of  subchapter.  --  The  provisions  of  this
subchapter shall not  preclude a  controlling person  or group  subject to  this
subchapter  from offering,  whether in  the notice  required by  section 2545 or
otherwise, to purchase voting  shares of the corporation  at a price other  than
that provided in subsection (c), and the provisions of this subchapter shall not
preclude  any shareholder from agreeing to sell his voting shares at that or any
other price to any person.

    2547 VALUATION PROCEDURES. -- (a)  General  rule. -- If, within 45 days  (or
such other time period, if any, as required by applicable law) after the date of
the notice required by section 2545 (relating to notice to shareholders), or, if
such  notice was  not provided prior  to the date  of the written  demand by the
shareholder under section 2546 (relating to shareholder demand for fair  value),
then

                                      A-4
<PAGE>
within  45 days (or such other time  period, if any, required by applicable law)
of the date  of such written  demand, the  controlling person or  group and  the
shareholder  are unable to agree on the fair value of the shares or on a binding
procedure to determine the fair value  of the shares, then each shareholder  who
is  unable to  agree on both  the fair  value and on  such a  procedure with the
controlling person or group and who so desires to obtain the rights and remedies
provided in this subchapter shall, no later than 30 days after the expiration of
the applicable  45-day or  other  period, surrender  to the  court  certificates
representing  any of the shares that  are certificated shares, duly endorsed for
transfer to the controlling person or group, or cause any uncertificated  shares
to  be transferred  to the  court as  escrow agent  under subsection  (c) with a
notice  stating  that  the  certificates  or  uncertificated  shares  are  being
surrendered  or transferred, as the case may be, in connection with the petition
referenced in section 2545  or, if no petition  has theretofore been filed,  the
shareholder  may file a petition  within the 30-day period  in the court praying
that the fair value (as defined in this subchapter) of the shares be determined.

    (b) Effect of  failure to  give notice  and surrender  certificates. --  Any
shareholder  who does not so give notice and surrender any certificates or cause
uncertificated shares to be  transferred within such time  period shall have  no
further  right to receive, with respect to shares the certificates of which were
not so surrendered or  the uncertificated shares which  were not so  transferred
under this section, payment under this subchapter from the controlling person or
group  with respect to the control transaction  giving rise to the rights of the
shareholder under this subchapter.

    (c) Escrow and notice. -- The court shall hold the certificates  surrendered
and  the  uncertificated  shares transferred  to  it  in escrow  for,  and shall
promptly,  following  the  expiration  of  the  time  period  during  which  the
certificates  may  be  surrendered and  the  uncertificated  shares transferred,
provide a notice to the controlling person  or group of the number of shares  so
surrendered or transferred.

    (d)  Partial payment  for shares. --  The controlling person  or group shall
then make a partial payment for the shares so surrendered or transferred to  the
court,  within ten business days  of receipt of the notice  from the court, at a
per-share price equal to the partial  payment amount. The court shall then  make
payment  as soon as practicable,  but in any event  within ten business days, to
the shareholders who so surrender or transfer  their shares to the court of  the
appropriate per-share amount received from the controlling person or group.

    (e)  Appointment  of appraiser.  -- Upon  receipt  of any  share certificate
surrendered or uncertificated  share transferred under  this section, the  court
shall,  as  soon as  practicable but  in any  event within  30 days,  appoint an
appraiser with experience in appraising share values of companies of like nature
to the registered corporation to determine the fair value of the shares.

    (f) Appraisal procedure. -- The appraiser  so appointed by the court  shall,
as  soon  as reasonably  practicable,  determine the  fair  value of  the shares
subject to its  appraisal and  the appropriate market  rate of  interest on  the
amount  then  owed by  the controlling  person or  group to  the holders  of the
shares. The determination of  any appraiser so appointed  by the court shall  be
final  and binding on both the controlling  person or group and all shareholders
who so surrendered their share certificates  or transferred their shares to  the
court, except that the determination of the appraiser shall be subject to review
to  the extent and within the time provided  or prescribed by law in the case of
other appointed  judicial  officers.  See  42  Pa.C.S.  SectionSection5105(a)(3)
(relating  to  right  to  appellate review)  and  5571(b)  (relating  to appeals
generally).

    (g) Supplemental payment.  -- Any  amount owed, together  with interest,  as
determined pursuant to the appraisal procedures of this section shall be payable
by  the  controlling person  or group  after it  is so  determined and  upon and
concurrently with the delivery or transfer to the controlling person or group by
the court  (which  shall  make  delivery  of  the  certificate  or  certificates
surrendered  or the uncertificated  shares transferred to  it to the controlling
person or group as soon as practicable but in any event within ten business days
after the  final  determination  of  the amount  owed)  of  the  certificate  or
certificates  representing  shares  surrendered  or  the  uncertificated  shares
transferred to the  court, and the  court shall  then make payment,  as soon  as
practicable but in any event within ten business

                                      A-5
<PAGE>
days  after receipt  of payment  from the  controlling person  or group,  to the
shareholders who so surrendered or transferred their shares to the court of  the
appropriate per-share amount received from the controlling person or group.

    (h) Voting and dividend rights during appraisal proceedings. -- Shareholders
who  surrender their shares to  the court pursuant to  this section shall retain
the right to  vote their  shares and  receive dividends  or other  distributions
thereon  until the  court receives  payment in  full for  each of  the shares so
surrendered or transferred of the  partial payment amount (and, thereafter,  the
controlling  person or group shall  be entitled to vote  such shares and receive
dividends or other distributions thereon). The fair value (as determined by  the
appraiser)   of  any  dividends  or  other  distributions  so  received  by  the
shareholders shall  be subtracted  from any  amount owing  to such  shareholders
under this section.

    (i) Powers of the court. -- The court may appoint such agents, including the
transfer  agent of the corporation, or any  other institution, to hold the share
certificates so surrendered and the shares surrendered or transferred under this
section, to effect any necessary change in record ownership of the shares  after
the  payment  by the  controlling person  or group  to the  court of  the amount
specified in  subsection  (h),  to  receive  and  disburse  dividends  or  other
distributions, to provide notices to shareholders and to take such other actions
as  the  court  determines  are  appropriate  to  effect  the  purposes  of this
subchapter.

    (j) Costs and expenses. -- The costs and expenses of any appraiser or  other
agents  appointed by the court shall  be assessed against the controlling person
or group. The costs and expenses of any other procedure to determine fair  value
shall be paid as agreed to by the parties agreeing to the procedure.

    (k)  Jurisdiction exclusive.  -- The  jurisdiction of  the court  under this
subchapter is plenary and exclusive and the controlling person or group and  all
shareholders  who so surrendered or transferred  their shares to the court shall
be made a party to the proceeding as in an action against their shares.

    (l) Duty of corporation. -- The  corporation shall comply with requests  for
information,  which  may be  submitted  pursuant to  procedures  maintaining the
confidentiality of the information, made by the court or the appraiser  selected
by  the court. If  any of the shares  of the corporation  are not represented by
certificates, the transfer, escrow or retransfer of those shares contemplated by
this section  shall be  registered  by the  corporation,  which shall  give  the
written  notice required by section  1528(f) (relating to uncertificated shares)
to the transferring shareholder,  the court and  the controlling shareholder  or
group, as appropriate in the circumstances.

    (m)  Payment under optional procedure. -- Any amount agreed upon between the
parties or determined pursuant to the procedure agreed upon between the  parties
shall  be payable by the controlling person or  group after it is agreed upon or
determined and upon  and concurrently with  the delivery of  any certificate  or
certificates  representing  such shares  or the  transfer of  any uncertificated
shares to the controlling person or group by the shareholder.

    (n) Title to shares. -- Upon full payment by the controlling person or group
of the amount  owed to  the shareholder  or to  the court,  as appropriate,  the
shareholder shall cease to have any interest in the shares.

    2548  COORDINATION  WITH CONTROL  TRANSACTION. --  (a)   General rule.  -- A
person or group that proposes to engage in a control transaction may comply with
the requirements of this subchapter in connection with the control  transaction,
and  the effectiveness of the rights afforded in this subchapter to shareholders
may be conditioned upon the consummation of the control transaction.

    (b) Notice. -- The person or group  shall give prompt written notice of  the
satisfaction  of any such condition  to each shareholder who  has made demand as
provided in this subchapter.

                                      A-6
<PAGE>
    Facsimile  copies of the Letter of  Transmittal, properly completed and duly
signed, will be accepted. The Letter of Transmittal, certificates for the Shares
and any  other required  documents should  be sent  by each  shareholder of  the
Company  or his broker, dealer, commercial  bank, trust company or other nominee
to the Depositary as follows:

                        THE DEPOSITARY FOR THE OFFER IS:

                    FIRST CHICAGO TRUST COMPANY OF NEW YORK

                BY MAIL:                      BY HAND OR OVERNIGHT COURIER:
          Tenders & Exchanges                      Tenders & Exchanges
           P.O. Box 2559-PSIC                         14 Wall Street
               Suite 4660                       8th Floor, Suite 4680-PSIC
       Jersey City, NJ 07303-2559                   NewYork, NY 10005

    Any questions or requests for assistance  or additional copies of the  Offer
to  Purchase, the  Letter of Transmittal,  the Notice of  Guaranteed Delivery or
other tender  offer materials  may be  directed  to the  Dealer Manager  or  the
Information  Agent at  their respective  telephone numbers  and addresses listed
below. You  may also  contact  your broker,  dealer,  commercial bank  or  trust
company or other nominee for assistance concerning the Offer.

                    THE INFORMATION AGENT FOR THE OFFER IS:

                                     [LOGO]
                                   GEORGESON
                                 & COMPANY INC.

                               Wall Street Plaza
                            New York, New York 10005
                 Banks and Brokers Call Collect (212) 440-9800
                    All Others Call Toll-Free (800) 223-2064

                      THE DEALER MANAGER FOR THE OFFER IS:

                                CS First Boston

                               Park Avenue Plaza
                              55 East 52nd Street
                               New York, NY 10055
                         Call Toll-Free (800) 881-8320


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