1. Division of Pediatric Hematology and OncologyDepartment of Pediatrics and Adolescent MedicineUniversity Hospital of Geneva Geneva Switzerland
2. Department of PediatricsCANSEARCH Research LaboratoryFaculty of MedicineUniversity of Geneva Geneva Switzerland
3. Department of Pediatric OncologyNational Cancer InstituteCairo University Giza Egypt
4. Department of Pediatric OncologyChildren's Cancer Hospital Cairo Egypt
5. Department of Pediatric Hematology/OncologyUniversity Hospital HalleClinic and Polyclinic for Pediatrics IFaculty of MedicineMartin‐Luther‐University Halle‐Wittenberg Halle Germany
6. Department of Pediatric Hematology/OncologyChildren's Minnesota Minneapolis Minnesota
7. Division of Pediatric NeurooncologyGerman Cancer Research Center (DKFZ)Hopp‐Children's Cancer Center at the NCT HeidelbergGerman Consortium for Translational Cancer Research (DKTK) Heidelberg Germany
8. Department of Pediatric OncologyHematologyImmunology and PulmonologyHeidelberg University Hospital Heidelberg Germany
9. Institute of NeuropathologyDGNN Brain Tumor Reference CenterUniversity of Bonn Medical Center Bonn Germany
10. Division of Pediatric Hematology and OncologyUniversity Medical Center Goettingen Göttingen Germany