1. Division of General Internal Medicine, Department of Medicine, University of California, San Francisco
2. Department of Urology, University of California, San Francisco
3. San Francisco Veterans Affairs Medical Center, San Francisco, California
4. Division of Geriatrics, Department of Medicine, University of California, San Francisco
5. Department of Medicine and Division of Epidemiology and Community Health, University of Minnesota, Minneapolis
6. Center for Care Delivery and Outcomes Research, Veterans Affairs Health Care System, Minneapolis, Minnesota
7. Buck Institute for Research on Aging, Novato, California
8. George M. O’Brien Center of Research Excellence, Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison
9. Department of Urology and Center for Male Health, Stritch School of Medicine and Loyola University Medical Center, Maywood, Illinois