1. Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, VT
2. Department of Pediatrics, University of Vermont, Burlington, VT
3. Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Tufts Medical Center, Boston, MA
4. Kelly Government Solutions for National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
5. Atlanta VA Medical Center, Decatur, GA, and Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA
6. Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, Aurora, CO