1. Department of Neurology and Brain Tumor Center, University Hospital Zurich and University of Zurich , Zurich , Switzerland
2. Department of Neurosurgery, Clinical Neuroscience Center, University Hospital and University of Zurich , Zurich, Zurich
3. Inserm, University of Lille , Lille , France
4. Neuro-Oncology, General and Stereotaxic Neurosurgery Service, University Hospital of Lille , Lille , France
5. Departments of Oncology & Clinical Neurosciences, Lundin Family Brain Tumor Research Center, Lausanne University Hospital & University of Lausanne , Lausanne , Switzerland
6. Department of Neurology and Department of Medical Oncology and Haematology, Cantonal Hospital , St. Gallen , Switzerland
7. Cantonal Hospital Aarau , Aarau , Switzerland
8. Division of Oncology, University Hospital Basel , Basel , Switzerland
9. Department of Biomedicine, University of Basel , Basel , Switzerland