1 Department of Neurology, Brain Tumour Centre, University Hospital and University of Zurich, CH-8091 Zurich, Switzerland. Electronic address: michael.weller@usz.ch.
2 Neurooncology Unit, Erasmus MC Cancer Institute, Rotterdam, Netherlands.
3 Department of Neurosurgery, Ludwig-Maximilians-University Munich, Munich, Germany.
4 Department of Oncology, Brain Tumour Centre, University Hospital and University of Zurich, CH-8091 Zurich, Switzerland.
5 Department of Medicine, Comprehensive Cancer Centre Vienna, Medical University of Vienna, Vienna, Austria.
6 Département de Radiotherapie, Institut Claudius Regaud, L'Institut Universitaire du Cancer de Toulouse-Oncopole, Toulouse, France.
7 Regional Cancer Centre Stockholm-Gotland and Department of Radiation Sciences and Oncology, Umeå University Hospital, Umeå, Sweden.
8 Neuro-Oncology, Department of Neurosurgery, University Hospital, Lille, France.
9 Catalan Institute of Oncology, Hospital Germans Trias i Pujol, Barcelona, Spain.
10 Department of Neuro-Oncology, Aix-Marseille Université, Assistance Publique-Hopitaux de Marseille, Centre Hospitalo-Universitaire Timone, Marseilles, France.
11 Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany.
12 Department of Neurology and Brain Tumour Centre Amsterdam, Vrije Universiteit Medical Centre, Amsterdam, Netherlands.
13 Department of Radiotherapy, Gustave Roussy University Hospital, Villejuif, France.
14 Department of Neurology, Erasmus MC Cancer Institute, Rotterdam, Netherlands.
15 Department of Clinical Neurosciences, Division of Neurosurgery, University of Cambridge, Cambridge, UK.
16 Division of Neurosurgery, Addenbrooke's Hospital, Cambridge University Hospitals Foundation Trust, Cambridge, UK.
17 Brain Tumour Research Centre, University of Portsmouth, Portsmouth, UK.
18 Department of Radiation Oncology, MediClin Robert Janker Clinic and Clinical Cooperation Unit Neurooncology, University of Bonn Medical Centre, Bonn, Germany.
19 Department of Neurology, Leiden University Medical Centre and Medical Centre Haaglanden, The Hague, Netherlands.
20 Department of Clinical Neurosciences, University Hospital Lausanne, Lausanne, Switzerland.
21 Department of Neurosurgery, University Hospital Hamburg, Hamburg, Germany.
22 Department of Neuropathology, Heinrich Heine University Düsseldorf and German Cancer Consortium, Essen/Düsseldorf, Germany.
23 Department of Neuro-Oncology, University Hospital, Turin, Italy.
24 Neurology Clinic and National Centre for Tumour Diseases, University Hospital Heidelberg, Heidelberg, Germany; German Consortium of Translational Cancer Research, Clinical Cooperation Unit Neurooncology, German Cancer Research Center, Heidelberg, Germany.