University of Alberta - School of Public Health, University of Minnesota - Twin Cities, Children's Hospital of Philadelphia - Department of Pediatrics, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, University of Alberta - School of Public Health, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, Fred Hutchinson Cancer Research Center - Public Health Sciences Division, University of Texas at Houston - MD Anderson Cancer Center, University of Alabama at Birmingham - Institute for Cancer Outcomes and Survivorship, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital - Department of Epidemiology, The Hospital for Sick Children - Division of Hematology/Oncology and University of Alberta - School of Public Health

University of Bern - Childhood Cancer Research Group, University of Bern - Childhood Cancer Research Group, University of Geneva - Cansearch Research Laboratory, St. Jude Children's Research Hospital - Department of Epidemiology, University of Lausanne - Lausanne University Hospital, University of Texas at Houston - MD Anderson Cancer Center, Emory University - Aflac Cancer and Blood Disorders Center, University of Geneva - Paediatric Onco-Haematology Unit, University of Bern - Childhood Cancer Research Group, Government of the United States of America - National Cancer Institute, University of Basel - Division of Paediatric Oncology/ Haematology, St. Jude Children’s Research Hospital - Department of Epidemiology and Cancer Control, Duke University - Duke Cancer Institute and University of Bern - Childhood Cancer Research Group

Government of the United States of America - Division of Cancer Epidemiology and Genetics, Government of the United States of America - National Cancer Institute, Government of the United States of America - National Cancer Institute, affiliation not provided to SSRN, University of Texas at Houston - MD Anderson Cancer Center, Government of the United States of America - Division of Cancer Epidemiology and Genetics, Government of the United States of America - Division of Cancer Epidemiology and Genetics, Kaiser Permanente Washington Health Research Institute, Kaiser Permanente - Center for Health Research, Kaiser Permanente Washington Health Research Institute, Kaiser Permanente Washington Health Research Institute, Government of the United States of America - Division of Cancer Epidemiology and Genetics, Government of the United States of America - Division of Cancer Epidemiology and Genetics and Government of the United States of America - Division of Cancer Epidemiology and Genetics