National Institutes of Health, Office of Purchasing and Contracts, OPM/OD, Suite 311, 6006 EXECUTIVE BLVD, BETHESDA MD 20892-7058

Q -- LABORATORY TESTING SERVICES POC Al Plyler, Contract Specialist or Stephanie C. Trice, Contracting Officer, 301/496-3704. CNT N02-CL-40004, Mod. 4 Exercise Option Year from July 27, 1996 through July 27, 1996 through July 26, 1997 AMT $1,031,662.51 DTD 072696 TO Mayo Medical Laboratories, 200 First Street, SW Rochester, MN 55905 (0211)

Loren Data Corp. http://www.ld.com (SYN# 0595 19960730\Q-0001.AWD)