1. Department of Urology, School of Medicine, University of Washington, Seattle, Washington
2. Department of Biostatistics, University of Washington, Seattle, Washington
3. Department of Urology, University of California-San Francisco, San Francisco
4. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota
5. Department of Epidemiology, University of Washington, Seattle, Washington
6. Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
7. Buck Institute for Research on Aging, Novato, California
8. Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
9. Division of Urology, Department of Veterans Affairs Medical Center, Seattle, Washington