1. Division of Oncology, Center for Childhood Cancer Research and Cancer Immunotherapy Program, Children's Hospital of Philadelphia, Philadelphia, PA
2. Department of Pediatrics, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
3. Department of Pediatric Hematology—Oncology and Institut de Recerca, Hospital Sant Joan de Déu Barcelona, Barcelona, Spain
4. Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
5. Department of Pediatrics, Faculty of Medicine, University of Montreal, Montreal, Canada
6. The Hematology Oncology Division and Charles-Bruneau Cancer Center, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Canada
7. Division of Stem Cell Transplantation and Immunology, Hospital for Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
8. University Hospital Robert Debré (APHP) and Université de Paris, Paris, France
9. Department of Pediatrics and Internal Medicine, University of Utah, Salt Lake City, UT
10. Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
11. Aflac Cancer and Blood Disorders Center, Emory University, Atlanta, GA
12. Department of Pediatric Hematology and Oncology, Oslo University Hospital, Oslo, Norway
13. Division of Hematology, Oncology, Blood and Marrow Transplant, Children's Hospital Los Angeles, USC Keck School of Medicine, Los Angeles, CA
14. At the time of present work, now affiliated with Division of Pediatric Hematology and Oncology, Intermountain Primary Children's Hospital, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT
15. Children's Mercy Hospital and Clinics, Kansas City, MO
16. National Bone Marrow Donor Program, Be the Match, Division of Pediatric Blood and Marrow Transplant, University of Minnesota, Minneapolis, MN
17. Pediatric Transplant and Cellular Therapy, Duke University Medical Center, Durham, NC
18. Oregon Health and Science University, Portland, OR
19. Stem Cell Transplantation Unit, St Anna Children's Hospital, Vienna, Austria
20. Department of Pediatrics, University of Michigan Medical Center, Ann Arbor, MI
21. Children's Cancer Centre, Royal Children's Hospital and Murdoch Children's Research Institute, Parkville, Victoria, Australia
22. Division of Hematology, Oncology, Stem Cell Transplant and Regenerative Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA
23. Division of Haematology/Oncology/Bone Marrow Transplantation, Hospital for Sick Children, Toronto, Canada
24. Clinica Pediatrica Università degli Studi di Milano Bicocca, Monza, Italy
25. Saint-Louis Hospital (APHP) and Université de Paris Diderot, Paris, France
26. Novartis Healthcare Pvt Ltd, Hyderabad, India
27. Novartis Pharmaceuticals Corporation, Dublin, Ireland