^aMedical Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland

^bUrology Department, George Washington University, Washington, D. C.

^cBrigham and Women's Hospital and Dana Farber Cancer Institute, Harvard University, Boston, Massachusetts

^dDivision of Urology and Duke Prostate Center, Departments of Surgery and Pathology, Duke University, Durham, North Carolina

^eCleveland Clinic, Cleveland, Ohio

^fDepartment of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas