1. Division of Clinical Neuro-Oncology, Department of Neurology and Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Medicine Essen, University Duisburg-Essen, 45147 Essen, Germany
2. Section Experimental Neurosurgery, Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
3. German Cancer Consortium (DKTK), Partner Site University Medicine Essen, 45147 Essen, Germany
4. DKFZ-Division Translational Neuro-Oncology, West German Cancer Center (WTZ), DKTK Partner Site, University Medicine Essen, University Duisburg-Essen, 45147 Essen, Germany
5. Department of Neurosurgery, University Hospital Essen, 45147 Essen, Germany
6. Department of Radiation Oncology, University Hospital Essen, 45147 Essen, Germany
7. Department of Neurosurgery, University Hospital Münster, 48149 Münster, Germany
8. Department of Neurology, University of Münster, 48149 Münster, Germany