1. Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA
2. Department of Epidemiology, Harvard School of Public Health, Boston, MA
3. Division of Aging, Brigham and Women's Hospital, Boston, MA
4. Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Jamaica Plain, MA
5. Departments of Epidemiology and Medicine, Center for Metabolic Disease Prevention, University of California Los Angeles, Los Angeles, CA
6. University of Washington School of Nursing, Seattle, WA
7. Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA
8. Department of Laboratory Medicine, Boston Children's Hospital, Boston, MA