1

                             LETTER OF TRANSMITTAL

                        TO TENDER SHARES OF COMMON STOCK

                                       OF

                            CLINTRIALS RESEARCH INC.

                                       AT

                              $6.00 NET PER SHARE

             PURSUANT TO THE OFFER TO PURCHASE DATED MARCH 5, 2001

                                       BY

                            INDIGO ACQUISITION CORP.
                          A WHOLLY OWNED SUBSIDIARY OF

                        INVERESK RESEARCH (CANADA) INC.
                          A WHOLLY OWNED SUBSIDIARY OF

                        INVERESK RESEARCH GROUP LIMITED

  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
          TIME, ON MONDAY, APRIL 2, 2001 UNLESS THE OFFER IS EXTENDED.

                        THE DEPOSITARY FOR THE OFFER IS:

                                 SUNTRUST BANK


                                                                
                                                                         By Overnight, Certified or
      By First Class Mail:                 By Hand Delivery:                    Express Mail:
          P.O. Box 4625                   58 Edgewood Avenue                 58 Edgewood Avenue
        Atlanta, GA 30302                      Room 225                           Room 225
                                           Atlanta, GA 30303                  Atlanta, GA 30303

                                      By Facsimile Transmission:
                                            (404) 865-5371

                                    Confirm Facsimile by Telephone
                                                 Only:
                                            (800) 568-3476


     DELIVERY OR TRANSMISSION OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OR VIA
A FACSIMILE NUMBER OTHER THAN AS SET FORTH ABOVE OR TRANSMISSION OF INSTRUCTIONS
WILL NOT CONSTITUTE A VALID DELIVERY.

     THE INSTRUCTIONS CONTAINED WITHIN THIS LETTER OF TRANSMITTAL SHOULD BE READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.
   2



- ---------------------------------------------------------------------------------------------------------------------------
                                              DESCRIPTION OF TENDERED SHARES
- ---------------------------------------------------------------------------------------------------------------------------
        NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)                        SHARE CERTIFICATE(S) TENDERED
(PLEASE FILL IN EXACTLY AS NAME(S) APPEAR(S) ON CERTIFICATE(S))        (ATTACH ADDITIONAL SIGNED LIST IF NECESSARY)
- ---------------------------------------------------------------------------------------------------------------------------
                                                                                       TOTAL NUMBER
                                                                                         OF SHARES         TOTAL NUMBER
                                                                    CERTIFICATE       REPRESENTED BY         OF SHARES
                                                                   NUMBER(S)(1)      CERTIFICATE(S)(1)      TENDERED(2)
                                                                                               
                                                                ------------------------------------------------------
                                                                ------------------------------------------------------
                                                                ------------------------------------------------------
                                                                ------------------------------------------------------
                                                                ------------------------------------------------------
                                                                   Total Shares
- ---------------------------------------------------------------------------------------------------------------------------
 (1) Need not be completed by stockholders tendering by book-entry transfer.
 (2) Unless otherwise indicated, it will be assumed that all Shares described above are being tendered. See Instruction 4.
- ---------------------------------------------------------------------------------------------------------------------------


[ ]  Check here if certificates have been lost, destroyed or mutilated. See
     Instruction 11.

    Number of Shares represented by lost, destroyed or mutilated certificates:
    -------------------

     The names and addresses of the registered holders of the tendered shares
     should be printed, if not already printed above, exactly as they appear on
     the Share Certificates (as defined below) tendered hereby.

     This Letter of Transmittal is to be used by stockholders of ClinTrials
Research Inc. (the "Company") if certificates for Shares (as defined below) are
to be forwarded with this Letter of Transmittal or, unless an Agent's Message
(as defined in Instruction 2 below) is utilized, if delivery of Shares is to be
made by book-entry transfer to an account maintained by the Depositary (as
defined below) at the Book-Entry Transfer Facility (as defined in and pursuant
to the procedures set forth in Section 3 of the Offer to Purchase (as defined
below)). Holders who deliver Shares by book-entry transfer are referred to
herein as "Book-Entry Stockholders" and other stockholders who deliver Shares
are referred to herein as "Certificate Stockholders."

     Stockholders whose certificates for Shares are not immediately available or
who cannot deliver either the certificates for, or a Book-Entry Confirmation (as
defined in Section 3 of the Offer to Purchase) with respect to, their Shares and
all other documents required hereby to the Depositary prior to the Expiration
Date (as defined in the Offer to Purchase), or the expiration of any Subsequent
Offering Period (as defined in the Offer to Purchase), must tender their Shares
in accordance with the guaranteed delivery procedures set forth in Section 3 of
the Offer to Purchase. See Instruction 2. DELIVERY OF DOCUMENTS TO A BOOK-ENTRY
TRANSFER FACILITY DOES NOT CONSTITUTE DELIVERY TO THE DEPOSITARY.

                                        2
   3

                                TENDER OF SHARES

[ ] CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER TO
    THE DEPOSITARY'S ACCOUNT AT THE BOOK-ENTRY TRANSFER FACILITY AND COMPLETE
    THE FOLLOWING (ONLY PARTICIPANTS IN THE BOOK-ENTRY TRANSFER FACILITY MAY
    DELIVER SHARES BY BOOK-ENTRY TRANSFER):

    Name of Tendering Institution:
    ----------------------------------------------------------------------------

    Account Number:
    ----------------------------------------------------------------------------

    Transaction Code Number:
    ----------------------------------------------------------------------------

[ ] CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED PURSUANT TO A NOTICE OF
    GUARANTEED DELIVERY PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE THE
    FOLLOWING.

    Name(s) of Registered Owner(s):
    ----------------------------------------------------------------------------

    Window Ticket Number (if any):
    ----------------------------------------------------------------------------

    Date of Execution of Notice of Guaranteed Delivery:
    --------------------------------------------------------------

    Name of Eligible Institution that Guaranteed Delivery:
    ------------------------------------------------------------

                                        3
   4

                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY

Ladies and Gentlemen:

     The undersigned hereby tenders to Indigo Acquisition Corp., a Delaware
corporation ("Purchaser"), which is a wholly owned subsidiary of Inveresk
Research (Canada) Inc., a corporation organized under the laws of Canada
("Inveresk Canada"), which in turn is a wholly owned subsidiary of Inveresk
Research Group Limited, a company organized under the laws of Scotland
("Parent"), the above-described shares of common stock, par value $0.01 per
share (the "Shares"), of ClinTrials Research Inc., a Delaware corporation (the
"Company"), for $6.00 per Share, net to the seller in cash (the "Common Stock
Price"), upon the terms and subject to the conditions set forth in the Offer to
Purchase dated March 5, 2001 (the "Offer to Purchase") and in this related
Letter of Transmittal (which, together with any amendments or supplements hereto
or thereto, collectively constitute the "Offer"). Receipt of the Offer is hereby
acknowledged.

     The Offer is being made pursuant to an Agreement and Plan of Merger, dated
as of February 22, 2001 (the "Merger Agreement"), by and among Parent, Purchaser
and the Company.

     Upon the terms and subject to the conditions of the Offer (and if the Offer
is extended or amended, the terms of any such extension or amendment), subject
to, and effective upon, acceptance for payment of the Shares tendered herewith
in accordance with the terms of the Offer, the undersigned hereby sells, assigns
and transfers to, or upon the order of, Purchaser all right, title and interest
in and to all the Shares that are being tendered hereby (and any and all cash
and non-cash dividends, distributions, rights, other shares of common stock or
other securities issued or issuable in respect thereof on or after February 22,
2001 (collectively, "Distributions")) and irrevocably constitutes and appoints
SunTrust Bank (the "Depositary") the true and lawful agent and attorney-in-fact
of the undersigned with respect to the tendered Shares (and any and all
Distributions in respect of those Shares), with full power of substitution (such
power of attorney being deemed to be an irrevocable power coupled with an
interest), to (i) deliver certificates for such Shares (and any and all
Distributions in respect of those Shares), or transfer ownership of such Shares
(and any and all Distributions in respect of those Shares) on the account books
maintained by the Book-Entry Transfer Facility, together, in any such case, with
all accompanying evidences of transfer and authenticity, to or upon the order
of, Purchaser, (ii) present such Shares (and any and all Distributions in
respect of those Shares) for transfer on the books of the Company, and (iii)
receive all benefits and otherwise exercise all rights of beneficial ownership
of such Shares (and any and all Distributions in respect of those Shares), all
in accordance with the terms of the Offer.

     By executing this Letter of Transmittal, the undersigned hereby irrevocably
appoints Purchaser, its officers and directors, and each of them, and any other
designees of Purchaser, the attorneys-in-fact and proxies of the undersigned,
each with full power of substitution, (i) to vote at any annual or special
meeting of the Company's stockholders or any adjournment or postponement thereof
or otherwise in such manner as each such attorney-in-fact and proxy or his
substitute shall in his sole discretion deem proper with respect to, (ii) to
execute any written consent concerning any matter as each such attorney-in-fact
and proxy or his substitute shall in his sole discretion deem proper with
respect to, and (iii) to otherwise act as each such attorney-in-fact and proxy
or his substitute shall in his sole discretion deem proper with respect to, all
of the Shares (and any and all Distributions in respect of those Shares)
tendered hereby and accepted for payment by Purchaser. This appointment will be
effective if and when, and only to the extent that, Purchaser accepts such
Shares for payment pursuant to the Offer. This power of attorney and proxy are
irrevocable and are granted in consideration of the acceptance for payment of
such Shares in accordance with the terms of the Offer. Such acceptance for
payment shall, without further action, revoke any prior powers of attorney and
proxies granted by the undersigned at any time with respect to such Shares (and
any and all Distributions in respect of those Shares), and no subsequent powers
of attorney, proxies, consents or revocations may be given by the undersigned
with respect thereto (and, if given, will not be deemed effective). Purchaser
reserves the right to require that, in order for the Shares to be deemed validly
tendered, immediately upon Purchaser's acceptance for payment of such Shares,
Purchaser must be able to exercise full voting, consent and other rights with
respect to such Shares (and any and all Distributions in respect of those
Shares), including voting at any meeting of the Company's stockholders.

     The undersigned hereby represents and warrants that the undersigned has
full power and authority to tender, sell, assign and transfer the Shares
tendered hereby (any and all Distributions in respect of those Shares), that the
undersigned

                                        4
   5

owns the Shares tendered hereby within the meaning of Rule 14e-4 promulgated
under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), that
the tender of the tendered Shares complies with Rule 14e-4 under the Exchange
Act, and that when the same are accepted for payment by Purchaser, Purchaser
will acquire good, marketable and unencumbered title thereto (and to any and all
Distributions in respect of those Shares), free and clear of all liens,
restrictions, charges and encumbrances and the same will not be subject to any
adverse claims. The undersigned will, upon request, execute and deliver any
additional documents deemed by the Depositary or Purchaser to be necessary or
desirable to complete the sale, assignment and transfer of the Shares tendered
hereby (and any and all Distributions in respect of those Shares) in accordance
with the terms of the Offer. In addition, the undersigned shall remit and
transfer promptly to the Depositary for the account of Purchaser all Shares (and
any and all Distributions in respect of those Shares) tendered hereby,
accompanied by appropriate documentation of transfer, and, pending such
remittance and transfer or appropriate assurance thereof, Purchaser shall be
entitled to all rights and privileges as owner of each such Distribution and may
withhold the entire purchase price of the Shares tendered hereby or deduct from
such purchase price the amount or value of such Distribution as determined by
Purchaser in its sole discretion.

     All authority conferred or agreed to be conferred in this Letter of
Transmittal shall survive the death or incapacity of the undersigned, and any
obligation of the undersigned hereunder shall be binding upon the heirs,
executors, administrators, personal representatives, trustees in bankruptcy,
successors and assigns of the undersigned. Except as stated in the Offer to
Purchase, the tender made by this Letter of Transmittal is irrevocable.

     The undersigned understands that the valid tender of the Shares pursuant to
any one of the procedures described in Section 3 of the Offer to Purchase and in
the Instructions to this Letter of Transmittal will constitute a binding
agreement between the undersigned and Purchaser upon the terms and subject to
the conditions of the Offer (and if the Offer is extended or amended, the terms
or conditions of any such extension or amendment). Without limiting the
foregoing, if the price to be paid in the Offer is amended in accordance with
the terms of the Merger Agreement, the price to be paid to the undersigned will
be the amended price notwithstanding the fact that a different price is stated
in this Letter of Transmittal. The undersigned recognizes that under certain
circumstances set forth in the Offer to Purchase, Purchaser may not be required
to accept for payment any of the Shares tendered hereby.

     Unless otherwise indicated under "Special Payment Instructions," please
issue the check for the purchase price of all Shares purchased and/or return any
certificates for any Shares not tendered or accepted for payment in the name(s)
of the registered holder(s) appearing above under "Description of the Tendered
Shares." Similarly, unless otherwise indicated under "Special Delivery
Instructions," please mail the check for the purchase price of all Shares
purchased and/or return any certificates for any Shares not tendered or not
accepted for payment (and any accompanying documents, as appropriate) to the
address(es) of the registered holder(s) appearing above under "Description of
the Tendered Shares." In the event that the boxes entitled "Special Payment
Instructions" and "Special Delivery Instructions" are both completed, please
issue the check for the purchase price of all Shares purchased and/or return any
certificates evidencing Shares not tendered or not accepted for payment (and any
accompanying documents, as appropriate) in the name(s) of, and deliver such
check and/or return any such certificates (and any accompanying documents, as
appropriate) to, the person(s) so indicated. Unless otherwise indicated herein
in the box entitled "Special Payment Instructions," please credit any Shares
tendered herewith by book-entry transfer that are not accepted for payment by
crediting the account at the Book-Entry Transfer Facility designated above. The
undersigned recognizes that Purchaser has no obligation pursuant to the "Special
Payment Instructions" to transfer any Shares from the name of the registered
holder thereof if Purchaser does not accept for payment any of the Shares so
tendered.

                                        5
   6

- ------------------------------------------------------
                          SPECIAL PAYMENT INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
- ------------------------------------------------------

      To be completed ONLY if the check for the purchase price of the Shares
 accepted for payment is to be issued in the name of someone other than the
 undersigned, if certificates for any Shares not tendered or not accepted for
 payment are to be issued in the name of someone other than the any Shares not
 tendered or not accepted and delivered by book-entry transfer that are not
 accepted for payment are to be returned by credit to an account maintained at
 a Book-Entry Transfer Facility other than the account indicated above.

 Issue check and/or stock certificates to:

 Name
 ---------------------------------------------
                                 (PLEASE PRINT)

 Address
 -------------------------------------------
 -----------------------------------------------------
                               (INCLUDE ZIP CODE)

 -----------------------------------------------------
             (TAXPAYER IDENTIFICATION OR SOCIAL SECURITY NUMBER(S))

                           (SEE SUBSTITUTE FORM W-9)

 [ ]  Credit Shares delivered by book-entry transfer and not purchased to the
      Book-Entry Transfer Facility account.

 -----------------------------------------------------
                                ACCOUNT NUMBER:
- ------------------------------------------------------

- ------------------------------------------------------
                         SPECIAL DELIVERY INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
- ------------------------------------------------------

      To be completed ONLY if certificates for undersigned or if any Shares
 tendered hereby for payment and/or the check for the purchase price of any
 Shares accepted for payment is to be sent to someone other than the
 undersigned or to the undersigned at an address other than that shown under
 "Description of Tendered Shares." Mail check and/or stock certificates to:

 Mail check and/or stock certificates to:

 Name
 ---------------------------------------------
                                 (PLEASE PRINT)

 Address
 -------------------------------------------
 -----------------------------------------------------
                               (INCLUDE ZIP CODE)

 -----------------------------------------------------
             (TAXPAYER IDENTIFICATION OR SOCIAL SECURITY NUMBER(S))
                           (SEE SUBSTITUTE FORM W-9)

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

                                        6
   7

                        IMPORTANT: STOCKHOLDER SIGN HERE
                    (COMPLETE SUBSTITUTE FORM W-9 INCLUDED)

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

- --------------------------------------------------------------------------------
                            SIGNATURE(S) OF OWNER(S)

Dated:
- --------------------------- , 2001

(Must be signed by the registered holder(s) exactly as name(s) appear(s) on the
certificate(s) for the Shares or on a security position listing or by person(s)
authorized to become registered holder(s) by certificates and documents
transmitted with this Letter of Transmittal. If signature is by trustees,
executors, administrators, guardians, attorneys-in-fact, agents, officers of
corporations or others acting in a fiduciary or representative capacity, please
provide the necessary information described in Instruction 5.)

Name(s):
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                                 (PLEASE PRINT)

Capacity (Full Title):
- --------------------------------------------------------------------------------
Address:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                               (INCLUDE ZIP CODE)

Area Code and Telephone Number: (   )
                                ------------------------------------------------

Tax Identification or Social Security No.(s)
                                 -----------------------------------------------
                                     (COMPLETE SUBSTITUTE FORM W-9 INCLUDED)

                           GUARANTEE OF SIGNATURE(S)
                           (SEE INSTRUCTIONS 1 AND 5)

Authorized Signature:
                ----------------------------------------------------------------

Name:
- --------------------------------------------------------------------------------

Title:
     ---------------------------------------------------------------------------

Name of Firm:
           ---------------------------------------------------------------------

Address:
- --------------------------------------------------------------------------------
                               (INCLUDE ZIP CODE)

Area Code and Telephone Number: (   )
                                ------------------------------------------------

Dated:
- --------------------------- , 2001

                                        7
   8

                                  INSTRUCTIONS

             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER

     1. GUARANTEE OF SIGNATURES.  No signature guarantee is required on this
Letter of Transmittal (a) if this Letter of Transmittal is signed by the
registered holder(s) (which term, for purposes of this Section, includes any
participant in the Book-Entry Transfer Facility's system whose name appears on a
security position listing as the owner of the Shares) of the Shares tendered
herewith, unless such registered holder(s) has completed either the box entitled
"Special Payment Instructions" or the box entitled "Special Delivery
Instructions" on the Letter of Transmittal or (b) if such Shares are tendered
for the account of a financial institution (including most commercial banks,
savings and loan associations and brokerage houses) that is a participant in the
Security Transfer Agents Medallion Program, or by any other "eligible guarantor
institution," as such term is defined in Rule l7Ad-15 under the Exchange Act
(each, an "Eligible Institution"). In all other cases, all signatures on this
Letter of Transmittal must be guaranteed by an Eligible Institution. See
Instruction 5.

     2. REQUIREMENTS OF TENDER.  This Letter of Transmittal is to be completed
by stockholders of the Company either if certificates are to be forwarded with
this Letter of Transmittal or, unless an Agent's Message (as defined below) is
utilized, if delivery of the Shares is to be made by book-entry transfer
pursuant to the procedures set forth herein and in Section 3 of the Offer to
Purchase. For a stockholder to validly tender Shares pursuant to the Offer,
either (a) a properly completed and duly executed Letter of Transmittal (or a
manually signed facsimile thereof), together with any required signature
guarantees or an Agent's Message (in connection with book-entry transfer of the
Shares) and any other required documents, must be received by the Depositary at
one of its addresses set forth herein prior to the Expiration Date, or the
expiration of any subsequent offering period, and either (i) certificates for
tendered Shares must be received by the Depositary at one of such addresses
prior to the Expiration Date, or the expiration of any subsequent offering
period, or (ii) Shares must be delivered pursuant to the procedures for
book-entry transfer set forth herein and in Section 3 of the Offer to Purchase
and a Book-Entry Confirmation must be received by the Depositary prior to the
Expiration Date, or the expiration of any Subsequent Offering Period, or (b) the
tendering stockholder must comply with the guaranteed delivery procedures set
forth herein and in Section 3 of the Offer to Purchase.

     Stockholders whose certificates for the Shares are not immediately
available or who cannot deliver their certificates and all other required
documents to the Depositary prior to the Expiration Date, or the expiration of
any Subsequent Offering Period, or who cannot comply with the book-entry
transfer procedures on a timely basis may tender their Shares by properly
completing and duly executing the Notice of Guaranteed Delivery pursuant to the
guaranteed delivery procedures set forth herein and in Section 3 of the Offer to
Purchase.

     Pursuant to such guaranteed delivery procedures, (i) such tender must be
made by or through an Eligible Institution, (ii) a properly completed and duly
executed Notice of Guaranteed Delivery, substantially in the form provided by
Purchaser, must be received by the Depositary prior to the Expiration Date, or
the expiration of any Subsequent Offering Period, and (iii) the certificates for
all tendered Shares, in proper form for transfer (or a Book-Entry Confirmation
with respect to all such tendered Shares), together with a properly completed
and duly executed Letter of Transmittal (or a manually signed facsimile
thereof), with any required signature guarantees, or, in the case of a
book-entry transfer, an Agent's Message in lieu of the Letter of Transmittal,
and any other required documents must be received by the Depositary within three
trading days after the date of execution of such Notice of Guaranteed Delivery.
A "trading day" is any day on which the Nasdaq National Market ("Nasdaq") is
open for business.

     The term "Agent's Message" means a message transmitted by the Book-Entry
Transfer Facility to, and received by, the Depositary and forming a part of a
Book-Entry Confirmation, which states that the Book-Entry Transfer Facility has
received an express acknowledgment from the participant in the Book-Entry
Transfer Facility tendering the Shares which are the subject of the Book-Entry
Confirmation, that such participant has received and agrees to be bound by the
terms of the Letter of Transmittal and that Purchaser may enforce such agreement
against the participant.

     The signatures on this Letter of Transmittal cover the Shares tendered
hereby.

     THE METHOD OF DELIVERY OF ANY SHARE CERTIFICATES, THIS LETTER OF
TRANSMITTAL AND ALL OTHER REQUIRED DOCUMENTS, INCLUDING DELIVERY THROUGH THE
BOOK-ENTRY TRANSFER FACILITY, IS AT THE ELECTION AND RISK OF THE TENDERING
STOCKHOLDER. THE SHARES WILL BE DEEMED DELIVERED ONLY WHEN ACTUALLY RECEIVED BY
THE DEPOSITARY
                                        8
   9

(INCLUDING, IN THE CASE OF A BOOK-ENTRY TRANSFER, BY BOOK-ENTRY CONFIRMATION).
IF DELIVERY IS BY MAIL, IT IS RECOMMENDED THAT THE STOCKHOLDER USE PROPERLY
INSURED REGISTERED MAIL WITH RETURN RECEIPT REQUESTED. IN ALL CASES, SUFFICIENT
TIME SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.

     No alternative, conditional or contingent tenders will be accepted, and no
fractional Shares will be purchased. All tendering stockholders, by executing
this Letter of Transmittal (or a manually signed facsimile thereof) waive any
right to receive any notice of acceptance of their Shares for payment.

     3. INADEQUATE SPACE.  If the space provided herein under "Description of
Tendered Shares" is inadequate, the number of Shares tendered and the
certificate numbers with respect to such Shares should be listed on a separate
signed schedule which should be attached to this Letter of Transmittal.

     4. PARTIAL TENDERS.  (Not applicable to stockholders who tender by
book-entry transfer). If fewer than all the Shares evidenced by any certificate
delivered to the Depositary with this Letter of Transmittal are to be tendered
hereby, fill in the number of Shares that are to be tendered in the box entitled
"Total Number of Shares Tendered." In any such case, new certificate(s) for the
remainder of the Shares that were evidenced by the old certificates will be sent
to the registered holder, unless otherwise provided in the appropriate box on
this Letter of Transmittal, as soon as practicable after the Expiration Date, or
the expiration of any subsequent offering period, or the termination of the
Offer. All Shares represented by certificates delivered to the Depositary will
be deemed to have been tendered unless otherwise indicated.

     5. SIGNATURES ON LETTER OF TRANSMITTAL; STOCK POWERS AND ENDORSEMENTS.  If
this Letter of Transmittal is signed by the registered holder(s) of the Shares
tendered hereby, the signature(s) must correspond with the name(s) as written on
the face of the certificate(s) without alteration, enlargement or any change
whatsoever.

     If any of the Shares tendered hereby are held of record by two or more
joint owners, all such owners must sign this Letter of Transmittal.

     If any of the tendered Shares are registered in different names on several
certificates, it will be necessary to complete, sign and submit as many separate
Letters of Transmittal as there are different registrations of certificates.

     If this Letter of Transmittal or any stock certificate or stock power is
signed by a trustee, executor, administrator, guardian, attorney-in-fact,
officer of a corporation or other person acting in a fiduciary or representative
capacity, such person should so indicate when signing, and proper evidence
satisfactory to Purchaser of the authority of such person to so act must be
submitted. If this Letter of Transmittal is signed by the registered holder(s)
of the Shares listed and transmitted hereby, no endorsements of certificates or
separate stock powers are required unless payment or certificates for any Shares
tendered or not accepted for payment are to be issued in the name of a person
other than the registered holder(s). Signatures on any such certificates or
stock powers must be guaranteed by an Eligible Institution.

     If this Letter of Transmittal is signed by a person other than the
registered holder(s) of the Shares evidenced by certificates listed and
transmitted hereby, the certificates must be endorsed or accompanied by
appropriate stock powers, in either case signed exactly as the name(s) of the
registered holder(s) appear(s) on the certificates. Signature(s) on any such
certificates or stock powers must be guaranteed by an Eligible Institution.

     6. STOCK TRANSFER TAXES.  Except as otherwise provided in this Instruction
6, Purchaser will pay all stock transfer taxes with respect to the transfer and
sale of any Shares to it or its order pursuant to the Offer. If, however,
payment of the purchase price of any Shares purchased is to be made to, or if
certificates for any Shares not tendered or not accepted for payment are to be
registered in the name of, any person other than the registered holder(s), or if
tendered certificates are registered in the name of any person other than the
person(s) signing this Letter of Transmittal, the amount of any stock transfer
taxes (whether imposed on the registered holder(s) or such other person) payable
on account of the transfer to such other person will be deducted from the
purchase price of such Shares purchased unless evidence satisfactory to
Purchaser of the payment of such taxes, or exemption therefrom, is submitted.

     Except as provided in this Instruction 6, it will not be necessary for
transfer tax stamps to be affixed to the certificates evidencing the Shares
tendered hereby.

     7. SPECIAL PAYMENT AND DELIVERY INSTRUCTIONS.  If a check for the purchase
price of any Shares accepted for payment is to be issued in the name of, and/or
certificates for any Shares not accepted for payment or not tendered are to

                                        9
   10

be issued in the name of and/or returned to, a person other than the signer of
this Letter of Transmittal or if a check is to be sent, and/or such certificates
are to be returned, to a person other than the signer of this Letter of
Transmittal, or to an address other than that shown above, the appropriate boxes
on this Letter of Transmittal should be completed. Any stockholder(s) delivering
Shares by book-entry transfer may request that Shares not purchased be credited
to such account maintained at the Book-Entry Transfer Facility stockholder(s)
may designate in the box entitled "Special Payment Instructions." If no such
instructions are given, any such Shares not purchased will be returned by
crediting the account at the Book-Entry Transfer Facility designated above as
the account from which such Shares were delivered.

     8. BACKUP WITHHOLDING.  In order to avoid "backup withholding" of Federal
income tax on payments of cash pursuant to the Offer, a stockholder surrendering
Shares in the Offer must, unless an exemption applies, provide the Depositary
with such stockholder's correct taxpayer identification number ("TIN") on the
Substitute Form W-9 in this Letter of Transmittal and certify under penalties of
perjury that such TIN is correct and that such stockholder is not subject to
backup withholding. If a tendering stockholder is subject to backup withholding,
such stockholder must cross out item (2) of the Certification box on the
Substitute Form W-9.

     Backup withholding is not an additional income tax. Rather, the amount of
the backup withholding can be credited against the Federal income tax liability
of the person subject to the backup withholding, provided that the required
information is given to the IRS. If backup withholding results in an overpayment
of tax, a refund can be obtained by the stockholder upon filing an income tax
return.

     The stockholder is required to give the Depositary the TIN (i.e., social
security number or employer identification number) of the record owner of the
Shares tendered with this Letter of Transmittal. If the Shares are held in more
than one name or are not in the name of the actual owner, consult the enclosed
"Guidelines for Certification of Taxpayer Identification Number on Substitute
Form W-9" for additional guidance on which number to report.

     If the tendering stockholder has not been issued a TIN and has applied for
a TIN or intends to apply for a TIN in the near future, such stockholder should
write "Applied For" in the space provided for the TIN in Part 1 of the
Substitute Form W-9 and sign and date the Substitute Form W-9, and the
stockholder or other payee must also complete the Certificate of Awaiting
Taxpayer Identification Number below in order to avoid backup withholding.
Notwithstanding that the Certificate of Awaiting Taxpayer Identification Number
is completed, the Depositary will withhold 31% on all payments made prior to the
time a properly certified TIN is provided to the Depositary. However, such
amounts will be refunded to such stockholder if a TIN is provided to the
Depositary within 60 days.

     Certain stockholders (including, among others, all corporations and certain
foreign individuals and entities) are not subject to backup withholding.
Noncorporate foreign stockholders should complete and sign the main signature
form and a Form W-8, Certificate of Foreign Status, a copy of which may be
obtained from the Depositary, in order to avoid backup withholding. See the
enclosed "Guidelines for Certification of Taxpayer Identification Number on
Substitute Form W-9" for more instructions.

     9. REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES.  Questions and requests
for assistance or additional copies of the Offer to Purchase, this Letter of
Transmittal, the Notice of Guaranteed Delivery and the Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9 may be
directed to the Information Agent or the Dealer Manager at the addresses and
phone numbers set forth below, or from brokers, dealers, commercial banks or
trust companies.

     10. WAIVER OF CONDITIONS.  Subject to the Merger Agreement and, in certain
cases, to the receipt of required consent from the parties providing debt and
equity financing for the Offer, Purchaser reserves the absolute right in its
sole discretion to waive, at any time or from time to time, any of the specified
conditions of the Offer, in whole or in part, in the case of any Shares
tendered.

     11. LOST, DESTROYED OR STOLEN CERTIFICATES.  If any certificate(s)
representing Shares has been lost, destroyed or stolen, the stockholder should
promptly notify the Depositary by either checking the box provided under the
table "Description of Tendered Shares" or by calling (800) 568-3476 and
indicating the number of Shares lost. The stockholder will then be instructed as
to the steps that must be taken in order to replace the certificate(s). This
Letter of Transmittal and related documents cannot be processed until the
procedures for replacing lost, destroyed or stolen certificates have been
followed.

                                        10
   11

     IMPORTANT: THIS LETTER OF TRANSMITTAL (OR A MANUALLY SIGNED FACSIMILE
HEREOF) TOGETHER WITH ANY REQUIRED SIGNATURE GUARANTEES (OR, IN THE CASE OF A
BOOK-ENTRY TRANSFER, AN AGENT'S MESSAGE) AND ANY OTHER REQUIRED DOCUMENTS, MUST
BE RECEIVED BY THE DEPOSITARY PRIOR TO THE EXPIRATION DATE OR THE EXPIRATION OF
ANY SUBSEQUENT OFFERING PERIOD, AND EITHER CERTIFICATES FOR TENDERED SHARES MUST
BE RECEIVED BY THE DEPOSITARY, OR SHARES MUST BE DELIVERED PURSUANT TO THE
PROCEDURES FOR BOOK-ENTRY TRANSFER, IN EACH CASE PRIOR TO THE EXPIRATION DATE
(OR THE EXPIRATION OF ANY SUBSEQUENT OFFERING PERIOD), OR THE TENDERING
STOCKHOLDERS MUST COMPLY WITH THE PROCEDURES FOR GUARANTEED DELIVERY.

                                        11
   12

                           IMPORTANT TAX INFORMATION

     Under Federal income tax law, a stockholder whose tendered Shares are
accepted for payment is required to provide the Depositary (as payer) with such
stockholder's correct taxpayer identification number on Substitute Form W-9
below. If such stockholder is an individual, the taxpayer identification number
is his or her social security number. If the Depositary is not provided with the
correct taxpayer identification number, the stockholder may be subject to a $50
penalty imposed by the Internal Revenue Service. In addition, payments that are
made to such stockholder with respect to Shares purchased pursuant to the Offer
may be subject to backup withholding of 31%.

     Certain stockholders (including, among others, all corporations, and
certain foreign individuals and entities) are not subject to these backup
withholding and reporting requirements. In order for a foreign individual to
qualify as an exempt recipient, that stockholder must submit a statement, signed
under penalties of perjury, attesting to that individual's exempt status. Such
statements can be obtained from the Depositary. Exempt stockholders, other than
foreign individuals, should furnish their TIN, write "Exempt" on the face of the
Substitute Form W-9 below, and sign, date and return the Substitute Form W-9 to
the Depositary. See the enclosed Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9 for additional instructions.

     If backup withholding applies, the Depositary is required to withhold 31%
of any payments made to the stockholder. Backup withholding is not an additional
tax. Rather, the tax liability of persons subject to backup withholding will be
reduced by the amount of tax withheld. If withholding results in an overpayment
of taxes, a refund may be obtained from the Internal Revenue Service.

PURPOSE OF SUBSTITUTE FORM W-9

     To prevent backup withholding on payments that are made to a stockholder
with respect to Shares purchased pursuant to the Offer, the stockholder is
required to notify the Depositary of such stockholder's correct taxpayer
identification number by completing the form contained herein certifying that
the taxpayer identification number provided on Substitute Form W-9 is correct
(or that such stockholder is awaiting a taxpayer identification number).

WHAT NUMBER TO GIVE THE DEPOSITARY

     The stockholder is required to give the Depositary the social security
number or employer identification number of the record owner of the Shares. If
the Shares are in more than one name or are not in the name of the actual owner,
consult the enclosed Guidelines for Certification of Taxpayer Identification
Number on Substitute Form W-9 for additional guidance on which number to report.
If the tendering stockholder has not been issued a TIN and has applied for a TIN
or intends to apply for a TIN in the near future, such stockholder should write
"Applied For" in the space provided for the TIN in Part 1 of the Substitute Form
W-9 and sign and date the Substitute Form W-9, and the stockholder or other
payee must also complete the Certificate of Awaiting Taxpayer Identification
Number below in order to avoid backup withholding. Notwithstanding that the
Certificate of Awaiting Taxpayer Identification Number is completed, the
Depositary will withhold 31% on all payments made prior to the time a properly
certified TIN is provided to the Depositary. However, such amounts will be
refunded to such stockholder if a TIN is provided to the Depositary within 60
days.

                                        12
   13

                          PAYER'S NAME: SUNTRUST BANK


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

 SUBSTITUTE                            PART 1 -- PLEASE PROVIDE YOUR TIN IN THE BOX AT  Social Security Number
 FORM W-9                              RIGHT AND CERTIFY BY SIGNING AND DATING BELOW    --------------------------------------
                                                                                        OR------------------------------------
                                                                                        Employer Identification Number
                                      ------------------------------------------------------------------------------------------
 Department of the Treasury            PART 2 -- Check the box if you are NOT subject to backup withholding under the provisions of
 Internal Revenue Service              Section 3406(a)(1)(C) of the Internal Revenue Code because (1) you are exempt from backup
                                       withholding, or (2) you have not been notified that you are subject to backup withholding as
                                       a result of failure to report all interest or dividends or (3) the Internal Revenue Service
                                       has notified you that you are no longer subject to backup withholding. [ ]
                                      ------------------------------------------------------------------------------------------
 PAYER'S REQUEST FOR TAXPAYER          CERTIFICATION -- UNDER THE PENALTIES OF PERJURY, I CERTIFY THAT THE     PART 3 --
 IDENTIFICATION NUMBER (TIN)           INFORMATION PROVIDED ON THIS FORM IS TRUE, CORRECT AND COMPLETE.

                                       Signature ------------------------------- Date---------------------     Awaiting TIN [ ]
- ------------------------------------------------------------------------------------------------------------------------------------


NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
      OF 31% OF ANY PAYMENTS MADE TO YOU PURSUANT TO THE OFFER. PLEASE REVIEW
      THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
      NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS. YOU MUST COMPLETE
      THE CERTIFICATE IF YOU CHECKED THE BOX IN PART 3 OF SUBSTITUTE FORM W-9.

             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

     I certify under penalties of perjury that a taxpayer identification number
has not been issued to me, and either (1) I have mailed or delivered an
application to receive a taxpayer identification number to the appropriate
Internal Revenue Service Center or Social Security Administration Office or (2)
I intend to mail or deliver an application in the near future. I understand that
if I do not provide a taxpayer identification number by the time of payment, 31%
of all payments made to me will be withheld, but that such amounts will be
refunded to me if I then provide a Taxpayer Identification Number within sixty
(60) days.


                                                                

- ---------------------------------------------------------          ------------------------------------------------
                        Signature                                                        Date


     MANUALLY SIGNED FACSIMILE COPIES OF THE LETTER OF TRANSMITTAL WILL BE
ACCEPTED. THE LETTER OF TRANSMITTAL, CERTIFICATES FOR THE SHARES AND ANY OTHER
REQUIRED DOCUMENTS SHOULD BE SENT OR DELIVERED BY EACH STOCKHOLDER OF THE
COMPANY OR SUCH STOCKHOLDER'S BROKER, DEALER, COMMERCIAL BANK, TRUST COMPANY OR
OTHER NOMINEE TO THE DEPOSITARY AT ONE OF ITS ADDRESSES SET FORTH ON THE FIRST
PAGE.

                                       13
   14

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

                    THE INFORMATION AGENT FOR THE OFFER IS:

                               MORROW & CO., INC.
                                445 Park Avenue
                            New York, New York 10022

                          Call Collect (212) 754-8000
           Banks and Brokerage Firms Call: (800) 654-2468 (Toll Free)

              STOCKHOLDERS PLEASE CALL: (800) 607-0088 (TOLL FREE)
                      E-mail: clintrials.info@morrowco.com

                      THE DEALER MANAGER FOR THE OFFER IS:

                            BEAR, STEARNS & CO. INC.
                                245 Park Avenue
                            New York, New York 10167
                           (888) 261-1668 (Toll-Free)

                                        14