1. Department of Medicine University of California San Francisco California USA
2. Department of Urology University of California San Francisco California USA
3. Veterans Affairs Medical Center San Francisco California USA
4. Research Institute California Pacific Medical Center San Francisco California USA
5. Division of Epidemiology and Community Health, Department of Medicine University of Minnesota Minneapolis Minnesota USA
6. Center for Care Delivery and Outcomes Research Veterans Affairs Health Care System Minneapolis Minnesota USA
7. Department of Urology, George M. O'Brien Center of Research Excellence University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
8. Department of Orthopaedics and Rehabilitation Oregon Health and Science University Portland Oregon USA
9. Oregon Health and Science University‐Portland State University School of Public Health Portland Oregon USA