1. From the Departments of Neurology (M.A.E., A.B., E.L.F., B.C.C.) and Biostatistics (M.B.), University of Michigan, Ann Arbor; Department of Internal Medicine (H.M., T.D., G.I.B.), Hurley Medical Center, Flint, MI; Department of Medicine (H.M., T.D., G.I.B.), Michigan State University, East Lansing; Department of International Health (P.J.W.), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD; Department of Neurology (M.K.), University of Rochester, NY; Department of Internal Medicine (M...