1. From the Departments of Epidemiology (S.B., K.C., D.G.) and Clinical Pharmacology (M.A., J.H.), Institute of Public Health, University of Southern Denmark, Odense, Denmark; Centro Español de Investigación Farmacoepidemiológica, Madrid, Spain (L.A.G.R.); and Department of Neurology, Odense University Hospital, Odense, Denmark (S.B., I.T., D.G.).