1. Department of Neurology and Neuroscience, Medical Center - University of Freiburg, Medical Faculty; University of Freiburg, Breisacher Straße 64; D-79106, Freiburg Germany
2. Doctor's Office for Neurology and Psychiatry; 79312, Emmendingen Germany
3. Department of Stereotactic and Functional Neurosurgery, Medical Center - University of Freiburg, Medical Faculty; University of Freiburg, Breisacher Straße 64, D-79106; Freiburg Germany
4. Department of Neurology; University Hospital Essen, Hufelandstraße 55, 45147; Essen Germany