1 Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
2 German Center for Neurodegenerative Diseases, Dresden, Dresden, Germany.
3 Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. rene.guenther@uniklinikum-dresden.de.
4 German Center for Neurodegenerative Diseases, Dresden, Dresden, Germany. rene.guenther@uniklinikum-dresden.de.