Exhibit 99.3 LabOne, Inc. 10101 Renner Boulevard Lenexa, Kansas 66219 The undersigned hereby appoints W. Thomas Grant II and Gregg R. Sadler, and each of them, jointly and severally, as proxies, with full power of substitution, for the undersigned at the Annual Meeting of Stockholders of LabOne, Inc. at 10101 Renner Boulevard, Lenexa, Kansas, on ______________ ____, 1999, at 10:00 a.m. C.D.T., and at any adjournment, to vote the shares of common stock the undersigned would be entitled to vote, if personally present, upon the proposals stated on the reverse side of this proxy card, the election of Directors and any other matter brought before the meeting, all as set forth in the ___________ ___, 1999 Joint Proxy Statement/ Prospectus. (Continued and to be signed on reverse side) Please Detach and Mail in the Envelope Provided [X] Please mark your votes as in this example. THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" ON PROPOSALS 1 AND 3 AND "GRANTED" ON PROPOSAL 2 FOR AGAINST ABSTAIN 1. Proposal to adopt the Agreement and Plan of Merger, as amended and restated, dated as of March 7, 1999 and the transactions contemplated [ ] [ ] [ ] thereby 2 The election of the following nominees as Directors, as Authority Authority WITHHELD to set forth in the Joint Proxy Statement/ Prospectus (or a GRANTED to vote for all nominees substitute nominee or nominees designated by the Board vote for all of Directors if any of them becomes unavailable): Joseph nominees H. Brewer, M.D., Peter C. Brown, William D. Grant, W. Thomas Grant II, Richard A., Rifkind, M.D., Richard S. Schweiker, James R. Seward, Robert D. Thompson, [ ] [ ] Chester B. Vanatta, John E. Walker, R. Dennis Wright and _______________________. (INSTRUCTIONS: To withhold authority to vote for any individual nominee, line through that nominee's name in the list above.) FOR AGAINST ABSTAIN 3. Ratification of the appointment of KPMG LLP as independent public accountants. [ ] [ ] [ ] This Proxy confers discretionary authority to vote upon certain matters, as described in the accompanying Joint Proxy Statement/Prospectus. Unless otherwise marked, the Proxy will be deemed marked "FOR" on Proposals 1 and 3 and marked "GRANTED" on proposal 2 and voted accordingly. This Proxy is solicited by the Board of Directors. (Please sign, date and return this Proxy in the enclosed envelope.) SIGNATURE _______________ DATE , 1999 SIGNATURE _______________ Date , 1999 (SIGNATURE IF HELD JOINTLY) (Note: Please sign exactly as name appears hereon. Executors, administrators, trustees, etc., should so indicate when signing, giving full title as such. If a signer is a corporation, execute in full corporation name by authorized officer. If shares are held in the name of two or more persons, all should sign.)