1. Boston Claude D. Pepper Older Americans Independence Center Brigham and Women's Hospital, Harvard Medical School Boston Massachusetts
2. Department of Medicine Beth Israel Deaconess Medical Center and Harvard Medical School Marcus Institute for Aging Research, Hebrew SeniorLife Boston Massachusetts
3. Department of Aging and Geriatric Research, University of Florida Gainesville Florida
4. California Pacific Medical Center Research Institute, San Francisco Coordinating Center San Francisco California
5. Nutrition, Exercise, Physiology, and Sarcopenia Laboratory, Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging Tufts University Boston Massachusetts
6. Department of Epidemiology and Public Health University of Maryland School of Medicine Baltimore Maryland
7. Department of Epidemiology Graduate School of Public Health, University of Pittsburgh Pittsburgh Pennsylvania
8. MRC Lifecourse Epidemiology Unit University of Southampton Southampton UK
9. National Center for Geriatrics and Gerontology Obu Japan
10. Department of Biomedical Sciences, Division of Geriatric Medicine, Ohio Musculoskeletal and Neurological Institute Ohio University Athens Ohio
11. Department of Medicine and geriatrics Catholic University of Sacred Heart Rome Italy
12. Department of Health Sciences, Faculty of Science Vrije Universiteit Amsterdam, Amsterdam Public Health Research institute Amsterdam The Netherlands
13. Abbott Nutrition, Abbott Laboratories Chicago Illinois
14. Muscle Group, Translational Medicine Novartis Institutes for Biomedical Research Cambridge Massachusetts
15. CUHK Jockey Club Institute of Ageing, SH Ho Centre for Gerontology and Geriatrics The Chinese University of Hong Kong Shatin Hong Kong
16. Faculty of Rehabilitation Medicine University of Alberta Edmonton Alberta Canada
17. Division of Geriatrics Washington University School of Medicine St. Louis Missouri
18. Division of Endocrinology, Diabetes, & Metabolism Johns Hopkins University Baltimore Maryland
19. Epidemiology and Public Health Longitudinal Studies Section, National Institute on Aging Baltimore Maryland
20. Division of Geriatric Medicine and Gerontology and Center on Aging and Health Johns Hopkins Medical Institute Baltimore Maryland
21. Department of Mathematics Framingham Heart Study, Boston University Boston Massachusetts
22. Department of Kinesiology Georgia Southern University
23. Division of Geriatrics and Clinical Gerontology National Institute on Aging Bethesda Maryland