1. From the Departments of Urology (MO, MWK, HK, PTS), Epidemiology and Biostatistics (MWK), and Pathology (VER), Memorial Sloan-Kettering Cancer Center, New York, New York, and Departments of Urology (KMS, SS) and Pathology (NM, MM, TMW), Baylor College of Medicine, Houston, Texas