1. From the Department of Neurology (A.J.G., C.L., F.B., S.B., M.P.), Department of Tropical Hygiene and Public Health (H.B.), Clinic and Policlinic for Maxillofacial Surgery (C.M.Z.), and Policlinic for Conservative Dentistry and Periodontology (C.K., R.L., C.E.D.), University of Heidelberg, Heidelberg, Germany.