From the Department of Neurology, Heinrich-Heine-University, Medical Faculty, Düsseldorf, Germany (M.G., H.-P.H., S.J.); Department of Neurology, University of Münster, Münster, Germany (L.K.); and Department of Cell Biology and Immunology, Faculty of Medicine, Vrije Universiteit, Amsterdam, The Netherlands (N.v.R.). (At 2015-10)