1. University of Pittsburgh , Division of Endocrinology, Diabetes and Metabolism, Pittsburgh, PA 15213, Bethesda, MD 20892, USA
2. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health , Bethesda, MD 20892 , USA
3. University of Nebraska Medical Center, Division of Diabetes, Endocrinology and Metabolism, Omaha, NE 68198 , USA
4. University of Washington Diabetes Institute, Seattle, WA 98109 , USA
5. Division of Diabetes, Endocrinology and Hypertension, Brigham and Women’s Hospital, and Harvard Medical School, Boston MA , USA
6. Mayo Clinic Evidence-Based Practice Center, Rochester, MN 55905 , USA
7. Division of Internal Medicine and Geriatrics, Cleveland Clinic Lerner College of Medicine, Cleveland, OH 44195 , USA
8. University of California, Department of Medicine, Division of Endocrinology and Metabolism, CA 94143, San Francisco