1. Department of Medicine, University of Texas Health Science Center, San Antonio, Texas;
2. Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina;
3. Nutritional Sciences and Medicine and Leadership, Sinai Centre for Diabetes, Mt. Sinai Hospital and the University of Toronto, Toronto, Ontario, Canada;
4. Barbara Davis Center for Childhood Diabetes and Human Medical Genetics Program, University of Colorado Health Sciences Center, Aurora, Colorado;
5. Division of Research, Kaiser Permanente, Northern California Region, Oakland, California;
6. Department of Medicine, Baylor College of Medicine, Houston, Texas.