1. Department of Urology, David Geffen School of Medicine; University of California at Los Angeles; Los Angeles California
2. Department of Urology; Emory University; Atlanta Georgia
3. Department of Urology; Atlanta Veterans Administration Medical Center; Decatur Georgia
4. Jonsson Comprehensive Cancer Center; University of California at Los Angeles; Los Angeles California
5. Division of Hematology and Oncology, Department of Medicine, David Geffen School of Medicine; University of California at Los Angeles; Los Angeles California
6. Department of Epidemiology, Fielding School of Public Health; University of California at Los Angeles; Los Angeles California
7. Department of Health Policy and Management, Fielding School of Public Health; University of California at Los Angeles; Los Angeles California