1. Institute of Neuropathology, University Hospital Münster Münster Germany
2. Department of Pathology and Laboratory Medicine Children's Hospital Los Angeles Keck School of Medicine University of Southern California Los Angeles CA USA
3. Division of Neuropathology and Neurochemistry Department of Neurology Medical University of Vienna Vienna Austria
4. Institute of Neuropathology, University Medical Center, Hamburg‐Eppendorf Hamburg Germany
5. Research Institute Children’s Cancer Center Hamburg Germany
6. Department of Pediatric Hematology and Oncology University Medical Center, Hamburg‐Eppendorf Hamburg Germany
7. Department of Neuropathology Berlin Institute of Health Charité‐Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität Zu Berlin Berlin Germany
8. Pediatric and Adolescent Medicine Swabian Children´s Cancer Center University ChildrensHospital Medical Center Augsburg and EU‐RHAB Registry Augsburg Germany
9. Hopp Children´s Cancer Center (KiTZ) Heidelberg Germany
10. Division of Paediatric Neurooncology German Cancer Research Center (DKFZ) German Cancer Consortium (DKTK Heidelberg Germany
11. Department of Pediatric Hematology and Oncology University Hospital Heidelberg Heidelberg Germany
12. Princess Máxima Center for Pediatric Oncology Utrecht The Netherlands