Affiliation: | 1. Department of Medicine, Boston Children's Hospital, Boston, Massachusetts;2. Department of Pediatric Oncology, Dana‐Farber/Boston Children's Cancer and Blood Disorders Center, Boston, Massachusetts;3. Harvard Medical School, Boston, Massachusetts;4. Division of Population Sciences, Dana‐Farber Cancer Institute, Boston, Massachusetts;5. Department of Biostatistics and Computational Biology, Dana‐Farber Cancer Institute, Boston, Massachusetts;6. Department of Psychosocial Oncology and Palliative Care, Dana‐Farber Cancer Institute, Boston, Massachusetts |