1. Department of Aging and Geriatric Research; College of Medicine; University of Florida; Gainesville Florida
2. Department of Exercise Science; Southern Connecticut State University; New Haven Connecticut
3. Department of Biostatistics; School of Medicine; Wake Forest University; Winston-Salem North Carolina
4. Jean Mayer USDA Human Nutrition Research Center on Aging; Tufts University; Boston Massachusetts
5. Center for Aging and Population Health; Department of Epidemiology; University of Pittsburgh; Pittsburgh Pennsylvania
6. Department of Health Research and Policy; School of Medicine; Stanford University; Stanford California
7. Stanford Prevention Research Center; Department of Medicine; School of Medicine; Stanford University; Stanford California
8. Department of Health and Exercise Science; School of Medicine; Wake Forest University; Winston-Salem North Carolina
9. Department of Kinesiology; School of Public Health and Health Sciences; University of Massachusetts; Amherst Massachusetts
10. Department of Kinesiology; Pennsylvania State University; University Park Pennsylvania
11. Department of Medicine; University of Alabama at Birmingham; Birmingham Alabama