1. 1Division of Hematology/Oncology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
2. 2Department of Pediatrics, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan
3. 3Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
4. 4Division of Paediatric Haematology-Oncology and BM Transplantation, University of Malaya Medical Centre, Kuala Lumpur, Malaysia
5. 5Department of Pediatric Hematology and Oncology, University Children's Hospital Essen, University of Duisburg-Essen, Essen, Germany
6. 6Department of Haematology, Great Ormond Street Hospital for Children, London, United Kingdom
7. 7Department of Pediatric Hematology/Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale Pediatrico Bambino Gesù, Sapienza University of Rome, Rome, Italy
8. 8Division of Hematology/Oncology, Department of Pediatrics, University of Utah and Primary Children's Hospital, Salt Lake City, UT
9. 9Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
10. 10Pediatric Hematology-Oncology, Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX
11. 11Division of Hematology, Oncology, Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA
12. 12Department of Clinical Haematology, Oncology, Blood and Marrow Transplantation, Perth Children's Hospital, Perth, WA, Australia
13. 13Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, University of WA, Perth, WA, Australia
14. 14Curtin Medical School, Curtin University, Perth, WA, Australia
15. 15Department of Paediatrics and Adolescent Medicine, the University of Hong Kong and Hong Kong Children's Hospital, Hong Kong, China
16. 16Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
17. 17Comenius University Children's Hospital Limbova 1, Bratislava, Slovakia
18. 18Department of Pediatric Oncology and Hematology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
19. 19Department of Haematology, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, United Kingdom
20. 20Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
21. 21Division of Hematology, Department of Pediatrics, Ste-Justine Hospital, Montréal, Université de Montréal, Montréal, QC, Canada
22. 22Pediatric Blood and Marrow Transplant Program, Cancer Care Manitoba, University of Manitoba, Winnipeg, MB, Canada
23. 23Pediatric Hematology-Oncology Department, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel
24. 24Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
25. 25Department of Pediatric Hematology-Oncology, Stollery Children's Hospital, University of Alberta, Edmonton, Canada
26. 26Nemours Center for Cancer and Blood Disorders/Alfred I. DuPont Hospital for Children, Wilmington, DE
27. 27Goethe University Frankfurt, Frankfurt, Germany
28. 28Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
29. 29Division of Genome Diagnostics, Department of Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, ON, Canada
30. 30Program in Developmental and Stem Cell Biology, The Hospital for Sick Children Research Institute, Toronto, ON, Canada