1. Center for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
2. Department of Neurology, Brigham and Women’s Hospital, Boston, Massachusetts, USA
3. Harvard Medical School, Boston, Massachusetts, USA
4. Department of Pathology, Amsterdam University Medical Centers/VUmc/Brain Tumor Center Amsterdam, the Netherlands
5. Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands