1. Department of Neurology, University Hospital and University of Zurich , Zurich , Switzerland
2. Department of Neurosurgery, Clinical Neuroscience Center, University Hospital and University of Zurich , Zurich , Switzerland
3. The Brain Tumour Center at the Erasmus MC Cancer Institute , Rotterdam , The Netherlands
4. Department of Neurological Surgery, University of California , San Francisco, California , USA
5. Department of Neurology, David Geffen School of Medicine at UCLA , Los Angeles, California , USA
6. Center of Neurosurgery, Department of General Neurosurgery, University of Cologne , Cologne , Germany
7. Brain Tumor Center, Hallym University Sacred Heart Hospital , Anyang , South Korea
8. Neuro Oncology Cancer Management Team, Apollo Proton Cancer Centre , Chennai , India
9. Department of Neurosurgery, The Walton Centre NHS Foundation Trust & University of Liverpool , Liverpool , UK
10. Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte , Siena , Italy
11. IRCCS Neuromed , Pozzilli, IS , Italy
12. Department of Neurosurgery, Kyorin University Faculty of Medicine , Tokyo , Japan
13. Third Department of Medical Oncology, Hygeia Hospital , Marousi, Athens , Greece
14. Division of Neuro-Oncology, Department of Neuroscience, City of Health and Science and University of Turin , Turin , Italy
15. Department of Neurology & Neuro-Oncology, Hertie Institute for Clinical Brain Research, Center for Neurooncology, Comprehensive Cancer Center, German Cancer Consortium (DKTK), Partner site Tübingen, University Hospital Tübingen, Eberhard Karls University Tübingen , Tübingen , Germany
16. Center for Neuro-oncology, Dana-Farber Cancer Institute and Harvard Medical School , Boston, Massachusetts , USA
17. Leeds Institute of Medical Research, University of Leeds , Leeds , UK
18. Department of Clinical Oncology, Leeds Teaching Hospitals NHS Trust , Leeds , UK
19. Division of Oncology, Department of Medicine 1, Medical University , Vienna , Austria