1. Department of Clinical Cancer Prevention, University of Texas M. D. Anderson Cancer Center, Houston, Texas
2. Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
3. Department of Gynecologic Oncology, Arizona Cancer Center, University of Arizona, Tucson, Arizona
4. Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas