1. Department of Urology and Diabetes Research Center, University of Washington, Seattle, WA
2. Biostatistics Center, The George Washington University, Washington, DC
3. NYU Winthrop Research Institute, NYU Winthrop Hospital, Mineola, NY
4. Division of Kidney, Urologic, and Hematologic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
5. Division of Diabetes, Endocrinology, and Metabolic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
6. Departments of Urology and Epidemiology, University of Michigan, Ann Arbor, MI