1. From the Department of Neurology, Medical University of Graz, Austria (T.G., K.N., B.P., C.E., F.F.)
2. Danube University Krems and Gesundheit Österreich GmbH/BIQG, Vienna, Austria (A.P.)
3. Department of Neurology, Medical University of Innsbruck, Austria (M.K., J.W., S.K.)
4. Department of Neurology, Medical University of Salzburg, Austria (S.M.)
5. Department of Neurology 1, Kepler Universitätsklinikum, Neuromed Campus, Linz, Austria (H.-P.H.)
6. Department of Neurology, Hospital Barmherzige Brüder Vienna, Austria (J.F., W.L.).