[1] University Medical Center Utrecht,Department of Pediatric Blood and Marrow Transplantation, Princess Máxima Center for Pediatric Oncology
[2] Memorial Sloan Kettering,Department of Pediatrics, Stem Cell Transplantation and Cellular Therapy
[3] Skane University Hospital,Department of Pediatric Oncology and Hematology
[4] Leiden University Medical Center,Department of Pediatrics, Willem Alexander Children’s Hospital
[5] Ghent University Hospital,Department of Pediatric Hematology, Oncology and Stem Cell Transplantation
[6] Oslo University Hospital,Department of Pediatric Hematology and Oncology
[7] Copenhagen University Hospital Rigshospitalet,Department of Pediatrics and Adolescent Medicine
[8] University Children’s Hospital,Department of Women’s and Children’s Health
[9] University Hospital; and Division of Pediatrics,Pediatric Hematology, Immunology and HCT, Astrid Lindgren Children’s Hospital
[10] CLINTEC,Department of Pediatrics, Institute of Clinical Sciences
[11] Karolinska Institutet,undefined
[12] University of Helsinki and Children’s Hospital,undefined
[13] University of Helsinki,undefined
[14] Sahlgrenska Academy at University of Gothenburg,undefined