1. Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
2. Department of Mathematics, Boston University and School of Public Health, Boston, Massachusetts
3. Radiology Department, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
4. National Heart, Lung, and Blood Institute's Framingham Heart Study, Framingham, Massachusetts
5. Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts