1. Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
2. Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
3. Shirley Ryan AbilityLab, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
4. Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
5. Division of Intramural Research, National Institute on Aging, Baltimore, MD, USA
6. Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
7. Department of Health Research and Policy, Stanford University, Stanford, CA, USA
8. Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
9. Current: Department of Physiology and Biophysics, Dalhousie University, Nova Scotia, Canada
10. Department of Medicine, University of Chicago, Chicago, IL, USA
11. Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
12. Department of Surgery and Biomedical Engineering, University of Virginia School of Medicine, Charlottesville, VA, USA
13. Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
14. Department of Preventive Medicine, Family Medicine and Public Health, University of San Diego California, San Diego, CA, USA