1. aDepartment of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
2. bDepartment of Emergency Medicine & Pediatrics, University of Vermont Medical Center and Children’s Hospital, University of Vermont Larner College of Medicine, Burlington, Vermont
3. cChildren’s Hospital Association, Lenexa, Kansas
4. dDepartment of Pediatrics and Emergency Medicine, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia
5. eSection of Pediatric Surgery, CS Mott Children’s Hospital University of Michigan, Ann Arbor, Michigan
6. fDepartment of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
7. gDepartments of Pediatrics and Emergency Medicine, Harvard Medical School, Division of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts
8. hDepartment of Pediatrics, Children’s National Hospital, George Washington University, Washington, District of Columbia
9. iDepartment of Emergency Medicine, Comprehensive Injury Center, Medical College of Wisconsin, Milwaukee, Wisconsin
10. jDepartment of Pediatrics, Section of Hospital Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas
11. kUCLA-Semel Institute for Neuroscience and Human Behavior, University of California at Los Angeles, Los Angeles, California