1. aSeattle Children’s Research Institute, Seattle, Washington
2. bDepartment of Pediatrics, University of Washington, Seattle, Washington
3. cDepartment of Pediatrics, Harvard Medical School, Boston, Massachusetts
4. dDana-Farber Cancer Institute, Department of Psychosocial Oncology and Palliative Care, Boston, Massachusetts
5. eDana-Farber/Boston Children’s Cancer and Blood Disorders Center, Boston, Massachusetts
6. fCenter for Bioethics, Harvard Medical School, Boston, Massachusetts