单位:[1]Division of Hematology/Oncology and Bone Marrow Transplantation,Hospital for Sick Children, Toronto, ON, Canada[2]Hematology andOncology Center, Beijing Children’s Hospital, Beijing, China首都医科大学附属北京儿童医院[3]LucilePackard Children’s Hospital Stanford University, Palo Alto, CA, USA[4]Emma Children’s Hospital/Academic Medical Center, Amsterdam, TheNetherlands[5]Hospital Sant Joan de Dèu, Barcelona, Spain[6]UniversityMedical Centre Hamburg Eppendorf, Hamburg, Germany[7]MeyerChildren’s University Hospital, Florence, Italy[8]Beijing FriendshipHospital, Beijing, China[9]Children’s Hospital Colorado, University ofColorado School of Medicine, Denver, CO, USA[10]Phoenix Children’sHospital, Phoenix, AZ, USA[11]Blank Children’s Hospital, Des Moines, IA,USA[12]Hospital Universitario Cruces, BioCruces Health ResearchInstitute, Bizkaia, Spain[13]Memorial Sloan Kettering Cancer Center, NewYork City, NY, USA[14]Department of Biostatistics, St. Jude Children’sResearch Hospital, Memphis, TN, USA[15]Children’s Hospital ofPhiladelphia, Philadelphia, PA, USA[16]Department of Oncology, Divisionof Cancer Predisposition, St. Jude Children’s Research Hospital, Memphis,TN, USA