1. From the Department of Neurology, Krankenanstalt Rudolfstiftung Vienna, Austria (P.S., E.F.)
2. Danube University Krems & Gesundheit Österreich GmbH/BIQG, Vienna, Austria (A.P.)
3. Department of Neurology, Medical University of Vienna, Austria (W.S., M.M., S. Scharer, S. Szabo, S.G.)
4. Department of Neurology, Krankenhaus Barmherzige Brüder, Vienna, Austria (J.F., W.L.)
5. Department of Neurology 2, Johannes Kepler University Hospital, Linz, Austria (M.V.)
6. Department of Neurology, Medical University of Innsbruck, Austria (S.K., M.K.).