Affiliation: | 1. Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee;2. Division of Critical Care Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee;3. Pediatric Critical Care, Unidad Nacional de Oncología Pediátrica Unit, Guatemala City, Guatemala;4. Pediatric Critical Care, Sociedad de Lucha Contra el Cáncer, Cuenca City, Ecuador;5. Clinical Research Program, Boston Children's Hospital, Boston, Massachusetts;6. Hematology/Oncology, Unidad Nacional de Oncología Pediátrica, Guatemala City, Guatemala;7. Francisco Marroquin University School of Medicine, Guatemala City, Guatemala;8. Division of Critical Care Medicine, Boston Children's Hospital, Boston, Massachusetts |