John W Cole1, Jerome H Chin2. 1. From the Department of Neurology (J.W.C.), Maryland Stroke Center, Baltimore VA Medical Center and University of Maryland School of Medicine; and the School of Public Health (J.H.C.), University of California, Berkeley. jcole@som.umaryland.edu. 2. From the Department of Neurology (J.W.C.), Maryland Stroke Center, Baltimore VA Medical Center and University of Maryland School of Medicine; and the School of Public Health (J.H.C.), University of California, Berkeley.