1. Baylor College of Medicine, Houston, Texas
2. Harvard Medical School, Harvard University, Boston, Massachusetts
3. Division of Pediatric Emergency Medicine, Department of Pediatrics, Alberta Children’s Hospital and Alberta Children’s Hospital Research Institute
4. School of Medicine, Wayne State University, Detroit, Michigan
5. Medical School, University of Michigan, Ann Arbor, Michigan
6. Cincinnati Children’s Hospital Medical Center and the Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
7. Southwestern Medical Center, University of Texas, Dallas, Texas
8. School of Medicine, University of Washington, Seattle, Washington
9. School of Medicine, University of Colorado, Aurora, Colorado
10. Alpert Medical School of Brown University, Providence, Rhode Island
11. School of Medicine, Washington University, St Louis, Missouri
12. University of Toronto and the Hospital for Sick Children, Toronto, Ontario, Canada
13. Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
14. School of Medicine, St Louis University, St Louis, Missouri
15. School of Medicine, Emory University, Atlanta, Georgia
16. Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
17. Children’s Hospitals and Clinics of Minnesota, Minneapolis, Minnesota
18. Masonic Children’s Hospital, University of Minnesota, Minneapolis, Minnesota
19. Yale School of Medicine, Yale University, New Haven, Connecticut
20. Alfred I. duPont Hospital for Children, Wilmington, Delaware
21. School of Medicine, University of California-San Diego, San Diego, California
22. Feinberg School of Medicine, Northwestern University, Chicago, Illinois
23. School of Medicine, University of Alabama-Birmingham, Birmingham, Alabama
24. Medical University of South Carolina, South Carolina, Charleston, South Carolina
25. School of Medicine, University California-Davis, Sacramento, California
26. Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada