1. From the Centre for Rehabilitation and Ageing, Geriatric Medicine (V.M.P.), and School of Physiotherapy (L.M.K.), St George’s University of London, London, UK; Stroke Therapy Evaluation Program (A.P.), and Academic Section of Geriatric Medicine (P.L.), University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK; and School of Paramedic Sciences, Physiotherapy and Radiology, University of Hertfordshire, Hatfield, UK (A.B.-H.).