1. From the Neurosonology and Stroke Research Program (V.K.S., G.T., A.Y.L., M.D.M., A.V.A.), Barrow Neurological Institute, Phoenix, Ariz; the Division of Neurology (V.K.S.), National University Hospital, Singapore; the Department of Neurology (G.T.), University of Athens School of Medicine, Athens, Greece; the University of Santo Tomas (A.Y.L.), Manila, Philippines; and the Comprehensive Stroke Center (G.T., A.V.A.), University of Alabama at Birmingham Hospital, Birmingham, Ala.