1. From the Departments of Epidemiology (H.H.H.A., M.A.I., M.W.V., A.H., A.G.U., C.M.v.D., O.H.F., D.B.), Radiology (M.A.I., M.W.V., A.C.v.D., A.v.d.L., D.B.), Neurology (M.A.I., A.C.v.D., P.J.K.), and Internal Medicine (A.G.U.), Erasmus MC, Rotterdam, the Netherlands; and Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (A.H.).