| Affiliation: | 1. Department of Clinical Nutrition, Division of Oncology, Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, , Philadelphia, Pennsylvania;2. Department of Biostatistics and Epidemiology, University of Pennsylvania Perelman School of Medicine, , Philadelphia, Pennsylvania;3. Center for Childhood Cancer Research and Division of Oncology, The Children's Hospital of Philadelphia, , Philadelphia, Pennsylvania;4. Division of Oncology and Hematology, Nemours Children's Clinic, , Jacksonville, Florida;5. Division of Pediatric Hematology/Oncology/BMT, British Columbia Children's Hospital, , Vancouver, British Columbia, Canada;6. Pediatric Surgery and Pediatrics, Vanderbilt Children's Hospital, , Nashville, Tennessee |
