1. From the Division of Stroke and Critical Care (C.B.W., J.R.F., A.S.), Department of Neurology, College of Physicians and Surgeons of Columbia University, New York; the Department of Biostatistics (M.C.P.), Mailman School of Public Health, Columbia University, New York; the Department of Radiology (T.R.B.), Columbia University, New York; the Gertrude H. Sergievsky Center (R.S., Y.S.), College of Physicians and Surgeons of Columbia University, New York; the Department of Neurology and Center for...