1. Department of Neurology, Technische Universität Dresden, Dresden, Germany
2. Interdisciplinary Sleep Centre, Departments of Neurology and Internal Medicine I, Technische Universität Dresden, Dresden, Germany
3. Department of Neurology, University of Rostock, Rostock, Germany
4. German Center for Neurodegenerative Diseases (DZNE) Rostock, Rostock, Germany
5. German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany