1. From the Human Cortical Physiology and Stroke Neurorehabilitation Section (P.C., N.-J.P., Y.V., M.D., L.G.C.), National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Md; the Department of Physical Medicine and Rehabilitation (P.C.), Johns Hopkins University, Baltimore, Md; the Department of Rehabilitation Medicine (N.-J.P.), Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea; and the Department of...