1. From the Division of Urology, University of Texas-Houston Health Science Center, Houston and Departments of Symptom Control and Palliative Care and Biostatistics, University of Texas M. D. Anderson Cancer Center and Department of Urology, Wilford Hall Medical Center, Lackland Air Force Base, San Antonio, Texas, and Departments of Obstetrics, Gynecology and Urology, Duke University Medical Center, Durham, North Carolina