Department of Neurogenetics, Max-Planck-Institute of Experimental Medicine, Hermann-Rein-Str. 3, 37075, Göttingen, Germany. ruth.stassart@medizin.uni-leipzig.de.
Department of Neuropathology, University Hospital Leipzig, Liebigstr. 26, 04103, Leipzig, Germany. ruth.stassart@medizin.uni-leipzig.de.