1. aDivision of Hematology/Oncology, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington
2. bSeattle Children’s Research Institute, Seattle, Washington
3. cFred Hutchinson Cancer Research Center, Seattle, Washington
4. dDepartment of Pediatric Oncology
5. hDivision of Population Sciences
6. iDepartment of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts
7. eDivision of Pediatric Hematology/Oncology
8. gHarvard Medical School, Boston, Massachusetts
9. jDepartment of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
10. kDepartment of Surgery, Boston Children’s Hospital, Boston, Massachusetts
11. lRutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
12. mMontefiore Medical Center, Bronx, New York
13. nDivision of Pediatric Hematology, Oncology and Stem Cell Transplantation, Columbia University Medical Center, New York, New York
14. oDepartment of Pediatrics, Roswell Park Comprehensive Cancer Center, Buffalo, New York
15. pDivision of Pediatric Hematology/Oncology, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, New York
16. qDivision of Pediatric Hematology Oncology, Charles-Bruneau Cancer Center, CHU Ste-Justine, Université de Montréal, Montréal, Quebec, Canada
17. rCentre Hospitalier Universitaire de Quebec, Saint-Foy, Quebec, Canada
18. sDivision of Pediatric Hematology/Oncology, Hasbro Children’s Hospital, Brown University, Providence, Rhode Island; and
19. tDepartment of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts