1 From the Departments of Neurology and Epidemiology (E.C.L.), Carver College of Medicine and College of Public Health, University of Iowa, Iowa City; the Departments of Neurology and Epidemiology and Public Health (M.S.P.), University of Maryland School of Medicine, Baltimore; and the Department of Neurology (A.S.J., D.O.K.), University of Cincinnati, OH. [email protected].
2 From the Departments of Neurology and Epidemiology (E.C.L.), Carver College of Medicine and College of Public Health, University of Iowa, Iowa City; the Departments of Neurology and Epidemiology and Public Health (M.S.P.), University of Maryland School of Medicine, Baltimore; and the Department of Neurology (A.S.J., D.O.K.), University of Cincinnati, OH.