1. aDivision of Emergency Medicine, Children’s Hospital of Orange County, University of California Irvine, Orange California
2. bUnaffiliated
3. cChildren’s Hospital Association, Lenexa, Kansas
4. dNationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, Ohio
5. eDepartment of Pediatrics, University of Pennsylvania, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
6. fKentucky Hospital Association, Louisville, Kentucky
7. gDepartments of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
8. hUniversity of Missouri-Kansas City, Children’s Mercy Hospital, Kansas City, Missouri
9. iMayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota
10. jDepartment of Pediatrics, Yale University School of Medicine, Yale New Haven Children’s Hospital, New Haven, Connecticut
11. kPrimary Children’s Hospital, University of Utah, Salt Lake City, Utah
12. lMedical University of South Carolina Children’s Health, Charleston, South Carolina
13. mDepartment of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Department of Anesthesia, Harvard Medical School, Boston, Massachusetts
14. nUniversity of Washington, Seattle Children’s Hospital, Seattle, Washington
15. oState University of New York Upstate Medical Center, Syracuse, New York
16. pDepartment of Pediatrics, University of Colorado School of Medicine, Children’s Hospital Colorado, Denver, Colorado
17. qCohen Children’s Medical Center of New York, Queens, New York
18. rChildren’s Hospital Colorado, Denver, Colorado
19. sDivision of Pediatric Emergency Medicine, Rainbow Babies and Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
20. tNationwide Children’s Hospital, Division of Pediatric Critical Care Medicine, Department of Pediatrics, Columbus, Ohio