1. From the Departments of Neurology (J.W.C., S.J.K, R.F.M., M.A.W.) and Epidemiology and Preventive Medicine (J.W.C., S.J.K., J.R.H., T.R.P), University of Maryland, Baltimore; Geriatrics Research, Education, and Clinical Center (S.J.K., R.F.M.), Baltimore Department of Veterans Affairs Medical Center, Baltimore, Md; Department of Neurology (A.N.P.), Hospital Fernando Fonseca, Amadora, Portugal; Department of Neurology (D.W.B., C.J.E., R.J.W.), Johns Hopkins University, Baltimore, Md; Neurological...