Thomas Zeyen and Daniel Paech have contributed equally.

Division of Clinical Neurooncology, Department of Neurology, University Hospital Bonn, Bonn, Germany

Thomas Zeyen, Johannes Weller, Niklas Schäfer, Theophilos Tzaridis, Cathrina Duffy, Louisa Nitsch, Ulrich Herrlinger & Christina Schaub

Department of Neuroradiology, University Hospital Bonn, Bonn, Germany

Daniel Paech & Alexander Radbruch

Department of Neurosurgery, University Hospital Bonn, Bonn, Germany

Matthias Schneider & Anna-Laura Potthoff

Dr. Senckenberg Institute of Neurooncology, University of Frankfurt, Frankfurt, Germany

Joachim Peter Steinbach & Pia Susan Zeiner

Department of Neurology and Wilhelm Sander NeuroOncology Unit, University Hospital Regensburg, Regensburg, Germany

Peter Hau

Department of Neurology, Klinik Hirslanden, Zürich, Switzerland

Uwe Schlegel

Department of Radiation Oncology, University of Leipzig, Leipzig, Germany

Clemens Seidel

Department of Neurosurgery, Technische Universität Dresden, Faculty of Medicine and University Hospital Carl Gustav Carus, Fetscherstrasse 74, 01307, Dresden, Germany

Dietmar Krex

Department of Neurology, University of Münster, Münster, Germany

Oliver Grauer

Center of Neurosurgery Department of General, Neurosurgery University of Cologne, Cologne, Germany

Roland Goldbrunner

Department of Neurology and Interdisciplinary Neuro-Oncology, Institute for Clinical Brain Research, University Hospital Tübingen, Eberhard Karls University Tübingen, HertieTübingen, Germany

Ghazaleh Tabatabai

Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen-Stuttgart, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany

Ghazaleh Tabatabai

Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany and Research Center Juelich, Inst. of Neuroscience and Medicine (INM-3), Juelich, Germany

Norbert Galldiks

Department of Neurosurgery, University of Münster, Münster, Germany

Walter Stummer

Department of Neuroradiology, University Hospital Frankfurt, 60590, Frankfurt Am Main, Germany

Elke Hattingen

Division of Clinical Neurooncology, Department of Neurology and Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Medicine Essen, University Duisburg-Essen, Essen, Germany

Martin Glas

German Cancer Consortium (DKTK), Partner Site University Medicine Essen, Hufelandstr. 55, 45147, Essen, Germany

Martin Glas