1. From the Department of Physical Medicine and Rehabilitation (Y.S.N., J.S., M.M.N., R.M.B.), Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, Mass; the Department of Rehabilitation Medicine (Y.S.N.), Singapore General Hospital, Republic of Singapore; and the Stroke Service (M.M.N.), Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass.