1. Department of Radiation Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
2. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
3. Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada
4. Epidemiology and Cancer Control Department, St Jude Children’s Research Hospital, Memphis, Tennessee
5. Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, Georgia
6. Department of Pediatric Oncology, Roswell Park Cancer Institute and Oishei Children’s Hospital, University at Buffalo School of Medicine and Biomedical Sciences, Buffalo, New York
7. Department of Hematology, City of Hope, Duarte, California
8. Department of Medical Oncology, University of Rochester, Rochester, New York
9. Division of Pediatric Hematology/Oncology, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
10. Department of Pediatrics, Children’s Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee
11. Children’s Oncology Group, Statistics and Data Center, Department of Biostatistics, University of Florida, Gainesville
12. Imaging and Radiation Oncology Core, Lincoln, Rhode Island
13. Centre Hospitalier Universitaire de Québec–Université Laval, Québec, Quebec, Canada
14. Princess Margaret Cancer Centre, Toronto, Ontario, Canada
15. Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut
16. Department of Radiation Oncology, Wilmot Cancer Institute, University of Rochester, Rochester, New York
17. Department of Radiation Oncology, Princess Margaret Cancer Centre–University Health Network, Toronto, Ontario, Canada