CITATION COMPUTER SYSTEMS, INC.

           Special Meeting of Shareholders, _________, 2000

      THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

     The  undersigned  hereby nominates, constitutes and  appoints  J.
Robert Copper and Richard D. Neece (or such person as is designated by
the  Board  of  Directors  of  CITATION Computer  Systems,  Inc.  (the
"Company")) (the "Proxies"), or either of them (with full power to act
alone),  true and lawful attorney(s), with full power of substitution,
for  the  undersigned  and  in  the  name,  place  and  stead  of  the
undersigned at the Special Meeting of Shareholders to be held at  8000
Forsyth Boulevard, 15th Floor, Clayton, Missouri at 10:00 a.m.,  local
time, __________, 2000, and any adjournments or postponements thereof.

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE FOLLOWING:

     1.   APPROVAL OF ACQUISITION PROPOSAL

          Proposal to adopt the Agreement and Plan of Merger, dated as
          of  May  15,  2000, by and among Cerner Corporation,  Cerner
          Performance  Logistics,  Inc.,  and  the  Company,  and  the
          transactions contemplated thereby, all of which is described
          in   the   accompanying  Proxy  Statement/Prospectus   dated
          _____________, 2000.

              ___ FOR       ___ AGAINST     ____ ABSTAIN

     2.   In  their discretion, on such other business as may properly
          come before the meeting (the Board of Directors is not aware
          of  any matter other than the above proposal which is to  be
          presented for action at the Special Meeting).



                (Please Sign and Date on Reverse Side)



                      (Continued from other side)

                   PLEASE SIGN AND RETURN PROMPTLY.

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE SHAREHOLDER.  IF NO DIRECTION IS GIVEN, THIS PROXY  WILL
BE   VOTED  FOR  THE  APPROVAL  OF  THE  ACQUISITION  PROPOSAL.    THE
UNDERSIGNED ACKNOWLEDGES RECEIPT OF THE NOTICE OF SPECIAL MEETING  AND
THE PROXY STATEMENT/PROSPECTUS DATED ________________, 2000.

(Please sign, date, and return this proxy form exactly as your name or
names appear below whether or not you plan to attend the meeting.)



                                            ___ Please check this  box
                                                if  you plan to attend
                                                the Special Meeting.

                                   Date_________________________, 2000

                                   Signature(s):______________________

                       		     ___________________________________

                                   ___________________________________
                                    Title or Authority (if applicable)

                                   Please  sign your name here exactly
                                   as it appears hereon.  Joint owners
                                   should each sign.  When signing  as
                                   an        attorney,       executor,
                                   administrator,  trustee,  guardian,
                                   corporate officer or other  similar
                                   capacity,  so  indicate.   If   the
                                   owner   is   a   corporation,    an
                                   authorized officer should sign  for
                                   the  corporation and state  his  or
                                   her  title.   This Proxy  shall  be
                                   deemed valid for all shares held in
                                   all  capacities that they are  held
                                   by the signatory.