1. Department of Pediatrics and Emergency Medicine; George Washington University School of Medicine; Washington DC
2. Department of Emergency Medicine; Michigan State University School of Medicine; Grand Rapids MI
3. Departments of Emergency Medicine and Pediatrics; Western Michigan University Homer Stryker School of Medicine; Kalamazoo MI
4. Department of Pediatrics; University of Utah School of Medicine; Salt Lake City UT
5. Department of Emergency Medicine; Howard County General Hospital; Columbia MD
6. Department of Pediatrics; University of Pennsylvania School of Medicine; Philadelphia PA
7. Department of Pediatrics; Feinberg School of Medicine; Northwestern University; Chicago IL
8. Department of Pediatrics; Washington University School of Medicine; St. Louis MO
9. Department of Pediatrics; University of Cincinnati College of Medicine; Cincinnati OH
10. Department of Pediatrics; Nemours Children's Hospital; Orlando FL
11. Departments of Emergency Medicine and Pediatrics; University of Rochester School of Medicine and Dentistry; Rochester NY
12. Department of Emergency Medicine; University of Texas; Southwestern Medical Center; Dallas TX
13. Departments of Orthopedics Rehabilitation; University of Wisconsin School of Medicine; Madison WI
14. Department of Pediatrics; Columbia University College of Physicians and Surgeons; New York NY
15. Department of Emergency Medicine; University of California; Davis School of Medicine; Sacramento CA
16. Department of Pediatrics; University of California; Davis School of Medicine; Sacramento CA