1. Department of Pediatric Hematology and Oncology Royal Marsden Hospital NHS Foundation Trust London UK
2. Department of Pediatric Hematology and Oncology Hannover Medical School Hannover Germany
3. MRC Weatherall Institute of Molecular Medicine University of OxfordJohn Radcliffe Hospital OxfordUK
4. Wolfson Childhood Cancer Research Center Translational and Clinical Research InstituteNewcastle University Newcastle upon Tyne UK
5. Department of Pediatric Hematology and Oncology University of Münster Münster Germany
6. Department of Pediatrics and Adolescent Medicine Li Ka Shing Faculty of Medicine The University of Hong KongQueen Mary Hospital Pokfulam Hong Kong
7. 2nd Department of Pediatrics Semmelweis University Budapest Hungary
8. Department of Pediatric Hematology and Oncology St. Anna Children's HospitalMedical University of Vienna Vienna Austria
9. Department of Pediatric Hematology and Oncology Centre Hospitalier Universitaire de Montpellier Montpellier France
10. Department of Pediatric Hematology and Oncology University Children's HospitalSchool of Medicine University of Belgrade Belgrade Serbia
11. Department of Pediatric Hematology and Oncology Federal Center for Pediatric Hematology, Oncology and Immunology Moscow Russia
12. Department of Pediatric and Adolescent Oncology INSERM U1015Gustave‐Roussy Université Paris‐Sacaly University Villejuif France
13. Department of Pathology Division of Cellular and Molecular Pathology University of Cambridge Cambridge UK
14. Central European Institute of TechnologyMasaryk University Brno Czech Republic
15. Department of Pediatric Hematology and Oncology University Hospital Leuven Leuven Belgium