1. Department of Neurology, Alexianer St. Josefs-Krankenhaus Potsdam, Allee nach Sanssouci 7, 14471 Potsdam, Germany; Medizinische Hochschule Brandenburg Theodor Fontane, Neuruppin, Germany
2. Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
3. Department of Neurology, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
4. Department of Neurology, Regensburg University Hospital, Regensburg, Germany
5. Department of Neurology, Hannover Medical School, Hannover, Germany
6. Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
7. Department of Diagnostic and Interventional Neuroradiology, Hannover Medical School, Hannover, Germany