1. Department of Child Health, Phoenix Children’s Hospital, Phoenix, Arizona
2. Department of Pediatrics, University of Utah, Salt Lake City, Utah
3. Department of Anesthesiology and Critical Care, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
4. Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan
5. Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Los Angeles, Los Angeles, California
6. Department of Pediatrics, Children’s National Medical Center, Washington, DC
7. Department of Critical Care Medicine, Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania
8. Department of Pediatrics, Children’s Hospital of Michigan, Detroit, Michigan
9. Department of Pediatrics, Mattel Children’s Hospital, University of California Los Angeles, Los Angeles, California
10. Department of Pediatrics, Washington University, St. Louis, Missouri; and
11. Pediatric Trauma and Critical Illness Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland