1. Department of Orthopaedics, Duke Roybal Center on Aging, Duke-Margolis Center for Health Policy, Duke University, Durham, NC (J.P.B.).
2. Department of Medicine, Stroke and Ageing Research, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia (D.A.C.).
3. Stroke Division, Florey Institute of Neuroscience and Mental Health, University of Melbourne, Heidelberg, Victoria, Australia (D.A.C.).