1. Department of Biostatistics German Cancer Research Center (DKFZ) Heidelberg Germany
2. Hopp Children's Cancer Center Heidelberg (KiTZ) Heidelberg Germany
3. Department of Neuropathology, University Hospital Heidelberg and CCU Neuropathology, German Consortium for Translational Cancer Research (DKTK) German Cancer Research Center (DKFZ) Heidelberg Germany
4. Division of Neuropathology, National Hospital for Neurology and Neurosurgery University College London NHS Foundation Trust London UK
5. Department of Neurodegenerative Disease, Queen Square Institute of Neurology University College London London UK
6. Division of Pediatric Glioma Research German Cancer Research Center (DKFZ) Heidelberg Germany
7. Department of Pathology Leiden University Medical Center Leiden The Netherlands
8. Department of Pathology Erasmus Medical Center Rotterdam The Netherlands