1. Department of Pathology; Massachusetts General Hospital, Harvard Medical School; Boston MA
2. Department of Pathology; Princess Margaret Hospital; Toronto Canada
3. Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta GA
4. Department of Neuropathology; Institute of Pathology, Ruprecht-Karls-University; Heidelberg Germany
5. Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), and German Cancer Consortium (DKTK); Heidelberg Germany
6. Department of Pathology; St. Jude Children's Research Hospital; Memphis TN
7. Department of Paediatric Laboratory Medicine; The Hospital for Sick Children, University of Toronto; Toronto Canada
8. Institute of Neuropathology, University Hospital Munster; Munster Germany
9. Department of Pathology; University of California San Francisco; San Francisco CA
10. Department of Neuropathology; Heinrich Heine University, Duesseldorf, and German Cancer Consortium (DKTK) partner site; Essen/Duesseldorf Germany
11. Department of Pathology and Neuropathology; La Timone Hospital, Aix Marseille University; Marseille France
12. Department of Pathology; VU University Medical Center; Amsterdam the Netherlands
13. Department of Pathology; Princess Máxima Center for Pediatric Oncology and University Medical Center Utrecht; Utrecht the Netherlands
14. Department of Neurology; Massachusetts General Hospital, Harvard Medical School; Boston MA
15. Department of Clinical Neurosciences; University of Calgary; Calgary Canada
16. Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ) Heidelberg, Heidelberg, Germany; German Cancer Consortium (DKTK) Core Center Heidelberg, Heidelberg, Germany; Department of Pediatric Oncology; Hematology, & Immunology, Heidelberg University Hospital; Heidelberg Germany
17. Department of Pediatric Haematology and Oncology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
18. Department of Neurology; University Hospital Zürich; Zürich Switzerland
19. Neurology Clinic and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany; Clinical Cooperation Unit Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK) Core Center Heidelberg; Heidelberg Germany