| Affiliation: | 1. Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA;2. National Heart, Lung, and Blood Institute''s Framingham Heart Study, Framingham, MA, USA;3. Population Research Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA;4. Department of Medicine and Whitaker Cardiovascular Institute, School of Medicine, Boston University, Boston, MA, USA;5. Division of Cardiovascular Medicine, Vanderbilt University, Nashville, TN, USA |
