1. Children's Hospital of Philadelphia, Philadelphia, PA
2. Kids v Cancer, Washington, DC
3. Swifty Foundation, Woodridge, IL
4. Center for Clinical Bioethics, St Joseph's University, Philadelphia, PA
5. Division of Hematology, Oncology, and Stem Cell Transplant, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL
6. Department of Pediatrics, Feinberg School of Medicine Northwestern University, Chicago, IL
7. Division of Hematology/Oncology, Arthur and Sonia Labatt Brain Tumour Research Centre, Hospital for Sick Children, Toronto, ON, Canada
8. Departments of Medical Biophysics and Pediatrics, University of Toronto, Toronto, ON, Canada