1. Division of Emergency Medicine; Children's Hospital Boston and Harvard Medical School; Boston MA
2. Department of Pediatrics; Columbia University College of Physicians and Surgeons; New York NY
3. Department of Pediatrics; University of Utah School of Medicine; Salt Lake City UT
4. Department of Pediatrics; University of Colorado School of Medicine; Denver CO
5. Department of Pediatrics; University of Louisville; Louisville KY
6. Department of Pediatrics; Baylor College of Medicine; Houston TX
7. Department of Pediatrics; Children's Hospital of Philadelphia and Perelman School of Medicine; University of Pennsylvania; Philadelphia PA
8. Department of Pediatrics; Alfred I. DuPont Hospital for Children; Wilmington DE
9. Division of Emergency Medicine; Children's Mercy Hospitals and Clinics; Kansas City MO
10. Department of Pediatric Emergency Medicine; Children's Hospital and Clinics of Minnesota; Minneapolis MN