1. Division of Pediatric Hematology/Oncology, Nationwide Children's Hospital/The Ohio State University, Columbus, Ohio, United States
2. Cardiovascular, Innovative Medicines Development, Bristol-Myers Squibb, Lawrenceville, New Jersey, United States
3. Division Pediatric Hematology/Oncology, University of Alberta, Edmonton, Alberta, Canada
4. Hematology-Oncology Section, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
5. Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, United States
6. Department of Pediatrics, Harvard Medical School, Harvard University, Boston, Massachusetts, United States
7. Children's Oncology Group Cancer Control Chair, The Hospital for Sick Children, Toronto, Ontario, Canada
8. Division of Pediatric Hematology/Oncology, Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota, United States