1. From the National Institute of Neurological Disorders and Stroke (S.W., S.J., J.O.), National Institutes of Health, Bethesda, MD; the University of Washington School of Medicine (K.B.), Seattle, WA; the University of British Columbia (O.B.), Vancouver, British Columbia; the University of Cincinnati (J.B.), Cincinnati, OH; Georgetown University School of Medicine (A.D.), Washington, DC; Duke University (P.D.), Durham, NC; Columbia University (M.S.V.E.), New York, NY; the University of Virginia (K.J.)...