1. Department of Urologic Surgery; Vanderbilt University Medical Center; Nashville Tennessee
2. Geriatric Research Education and Clinical Center; Veterans Affairs Tennessee Valley Healthcare System; Nashville Tennessee
3. Department of Medical Oncology; Vanderbilt University Medical Center; Nashville Tennessee
4. Department of Biostatistics; Vanderbilt University Medical Center; Nashville Tennessee
5. Department of Epidemiology; Louisiana State University Health Sciences Center; New Orleans Louisiana
6. Department of Urology; University of California San Francisco Medical Center; San Francisco California
7. Department of Epidemiology; Rollins School of Public Health, Emory University; Atlanta Georgia
8. Center for Health Policy Research and Department of Medicine; University of California Irvine; Irvine California
9. Department of Preventive Medicine; Keck School of Medicine, University of Southern California; Los Angeles California
10. Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
11. Health Policy Research Institute, University of California Irvine; Irvine California
12. The New Jersey State Cancer Registry; Trenton New Jersey
13. Department of Epidemiology; Rutgers University; New Brunswick New Jersey