1. Department of Radiotherapy West German Cancer Center University Hospital Essen University of Duisburg Essen Germany
2. Division of Clinical Neurooncology Department of Neurology and West German Cancer Center University Hospital Essen University of Duisburg Essen Germany
3. DKFZ‐Division Translational Neurooncology at the West German Cancer Centre (WTZ) German Cancer Consortium (DKTK) Partner Site University Hospital Essen University of Duisburg Essen Germany
4. German Cancer Consortium (DKTK) Partner Site University Hospital Essen Germany
5. Department of Neurosurgery University Hospital Essen University of Duisburg Essen Germany
6. Department of Neurology and Wilhelm Sander‐NeuroOncology Unit Regensburg University Hospital Germany