1. Department of EpidemiologyJohns Hopkins Bloomberg School of Public Health Baltimore Maryland
2. Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins Baltimore Maryland
3. Department of UrologyThe James Buchanan Brady Urological Institute and Johns Hopkins School of Medicine Baltimore Maryland
4. The Institute of Cancer Research, The Royal Marsden London UK
5. Department of PathologyUniversity of Colorado School of Medicine Aurora Colorado
6. The Cancer Therapy and Research CenterCHRISTUS Santa Rosa Hospital‐Medical Center San Antonio Texas
7. Department of UrologyUniversity of Texas Health Sciences Center San Antonio San Antonio Texas
8. SWOG Statistical CenterFred Hutchinson Cancer Research Center Seattle Washington
9. Cancer Prevention Program, Public Health Sciences DivisionFred Hutchinson Cancer Research Center Seattle Washington
10. Departments of Obstetrics and Gynecology, and Preventive MedicineUniversity of Southern California Keck School of Medicine Los Angeles California
11. Division of Cancer PreventionNational Cancer Institute, National Institutes of Health, Department of Health and Human Services Bethesda Maryland
12. Moores Cancer CenterUniversity of California San Diego La Jolla California
13. Department of PathologyJohns Hopkins University School of Medicine Baltimore Maryland