1. Department of Psychosocial Oncology and Palliative Care Dana Farber Cancer Institute Boston Massachusetts USA
2. Pediatric Advanced Care Team Boston Children's Hospital Boston Massachusetts USA
3. Department of Pediatrics Columbia University Vagelos College of Physicians and Surgeons New York New York USA
4. NewYork‐Presbyterian Morgan Stanley Children's Hospital NewYork New York USA
5. Department of Biostatistics Mailman School of Public Health, Columbia University New York New York USA
6. Division of Pediatric Hematology/Oncology/Stem Cell Transplantation Columbia University Irving Medical Center New York New York USA
7. Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center New York New York USA