1. From the Department of Neurology, McGovern Medical School, University of Texas Health Science Center, Houston (F.S.V., L.D.M., S.I.S.); Department of Emergency Medicine (J.P.D.) and Department of Neurology (K.C.A.), University of Alabama School of Medicine, Birmingham; Center for Clinical Research and Evidence-Based Medicine, McGovern Medical School, University of Texas Health Science Center, Houston (J.E.T., C.C.M.); and Department of Neurology, Columbia University, New York, NY (A.K.B.).