1. Division of Pediatric Oncology, Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University , Baltimore, Maryland , USA
2. Division of Hematology/Oncology, Department of Paediatrics, IWK Health Centre and Dalhousie University , Halifax, Nova Scotia , Canada
3. Division of Pediatric Hematology and Oncology, Department of Pediatrics, Texas Children’s Hospital/Baylor College of Medicine , Houston, Texas , USA
4. Division of Hematology/Oncology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto , Toronto, Ontario , Canada
5. Division of Neurosurgery, School of Medicine, Johns Hopkins University , Baltimore, Maryland , USA
6. Division of Pathology, School of Medicine, Johns Hopkins University , Baltimore, Maryland , USA
7. Division of Neuroradiology, The Hospital for Sick Children, University of Toronto , Toronto, Ontario , Canada
8. Department of Radiation Oncology, Mayo Clinic , Rochester, MN , USA
9. Department of Pediatrics, Columbia University Irving Medical Center , New York, New York , USA
10. The Brain Tumor Institute, Center for Neuroscience and Behavioral Medicine, Children’s National Health System , Washington, DC , USA