1. Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas
2. SWOG Statistical Center, Fred Hutchinson Cancer Research Center, Seattle, Washington
3. Department of Urology, University of Texas Health Science Center, San Antonio, Texas
4. Departments of Urology and Medical Oncology, Weill Medical College of Cornell University, New York, New York
5. Department of Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, Texas
6. Glickman Urological and Kidney Institute and Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio