1. VA Center of Innovation to Accelerate Discovery and Practice Transformation Medical Center, Durham, NC, USA
2. Doctor of Physical Therapy Division, Duke University, Durham, NC, USA
3. Department of Population Health Sciences, Duke University Medical Center, Durham, NC, USA
4. Duke Clinical Research Institute, Duke University, Durham, NC, USA
5. Department of Medicine, Duke University Medical Center, Durham, NC, USA
6. Geriatrics Research Education and Clinical Center, Durham VA Health Care System, Durham, NC, USA
7. Center for the Study of Aging, Duke University School of Medicine, Durham, NC, USA
8. School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, USA
9. Department of Medicine and Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA