[1] UNIV KENTUCKY,MARKEY CANC CTR,LEXINGTON,KY 40506
[2] UNIV TENNESSEE,CTR HLTH SCI,DEPT UROL,MEMPHIS,TN 38163
[3] MAYO CLIN & MAYO FDN,DEPT SURG PATHOL,ROCHESTER,MN 55905
[4] NEW YORK STATE DEPT HLTH,ROSWELL PK MEM INST,CTR ORGAN SYST COORDINATING,BUFFALO,NY 14263