1. Department of Neurology, Leiden University Medical Center , Leiden , the Netherlands
2. Department of Neurology, Haaglanden Medical Center , Den Haag , the Netherlands
3. Division of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute , Amsterdam , the Netherlands
4. Institute of Radiation-Oncology, Kantonsspital Graubünden , Chur , Switzerland
5. Department of Radiation Oncology (MAASTRO Clinic), and GROW (School for Oncology and Developmental Biology), Maastricht University Medical Center , Maastricht , the Netherlands
6. The Brain Tumor Center, Erasmus MC Cancer Institute , Rotterdam , the Netherlands
7. Quality of Life Department, European Organisation for Research and Treatment of Cancer , Brussels , Belgium
8. Department of Medical Oncology, Azienda USL-IRCCS Institute of Neurological Sciences , Bologna , Italy
9. Aix-Marseille Univ, APHM, CNRS, INP, Inst Neurophysiopathol, CHU Timone, Service de Neuro-Oncologie , Marseille , France
10. European Organization for Research and Treatment of Cancer, Headquarters , Brussels , Belgium
11. Division of Clinical Neurooncology, Department of Neurology, University of Bonn Medical Center , Bonn , Germany
12. Groupe Hôpital Pitié-Salpetrière , Assistance Publique, Paris , France
13. Department of Advanced Home Care and Department of Clinical and Experimental Medicine, Linköping University , Linköping , Sweden
14. Northwestern University, Feinberg School of Medicine , Chicago, Illinois, USA
15. Department of Neurosciences, Azienda Ospedaliera San Giovanni Addolorata , Roma , Italia
16. Department of Neurology, University Hospital and University of Zurich , Zurich , Switzerland
17. Neurology Clinic and National Centre for Tumour Diseases, University Hospital Heidelberg , Heidelberg , Germany
18. German Consortium of Translational Cancer Research (DKTK), Clinical Cooperation Unit Neurooncology, German Cancer Research Center , Heidelberg , Germany
19. Department of Neurology and Brain Tumour Center Amsterdam, Amsterdam University Medical Center , Amsterdam , the Netherlands