1. 1Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
2. 2Biostatistics Center, George Washington University, Rockville, MD
3. 3Department of Urology and Diabetes Endocrinology Research Center, University of Washington, Seattle, WA
4. 4Research Institute, Winthrop University Hospital, Mineola, NY
5. 5Department of Urology, University of Michigan, Ann Arbor, MI