1. From the Cerebral Vascular Disease Research Center (K.R.D., J.T., K.M.D., F.J.B., A.L., I.S.), Department of Neurology, the Bascom Palmer Eye Institute (S.K.B.), the Diabetes Research Institute (A.P.), and the DeWitt Daughtry Department of Surgery (A.P.), Leonard M. Miller School of Medicine, University of Miami, Miami, FL.