1. From the Department of Epidemiology and Public Health, Inserm U744, Pasteur Institute, Lille, France (S.D., P.A., J.D.); Department of Neurology, EA1046, Lille University Hospital, Lille, France (S.D., D.L.); Department of Epidemiology, Paris Ile-de-France Ouest School of Medicine, University of Versailles Saint-Quentin-en-Yvelines, Versailles, France (S.D.); Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland (T.M., A.M., T.T.); Department of Medical and Surgical...