1. Department of Aging and Geriatric Research,University of Florida, Gainesville
2. Department of Aging and Geriatric Research,University of Florida, Gainesville2Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore
3. Department of Internal Medicine, Wake Forest University and School of Medicine, Winston-Salem, North Carolina
4. Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia
5. Division of Cardiac Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
6. Department of Preventative Medicine, Pennington Biomedical Research Center, Louisiana
7. Jean Mayer United States Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts
8. Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
9. Veterans Affairs San Diego Healthcare System, San Diego, California10Department of Family and Preventive Medicine, University of California, San Diego, San Diego
10. Department of Health Research and Policy and Department of Medicine, Stanford University, School of Medicine, Stanford, California
11. Department of Medicine and Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
12. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania