1. Department of Emergency Medicine University of Arizona Tucson Arizona USA
2. Department of Emergency Medicine Division of Pediatric Emergency Medicine Mayo Clinic College of Medicine and Science Rochester Minnesota USA
3. Goryeb Children's Hospital at Morristown Medical Center Morristown New Jersey USA
4. Department of Emergency Medicine Albany Medical Center Albany New York USA
5. Keck School of Medicine of the University of Southern California Los Angeles California USA
6. Department of Emergency Medicine Los Angeles County and USC Medical Center Los Angeles California USA
7. Departments of Emergency Medicine and Pediatrics Alpert Medical School of Brown University Rhode Island Hospital and Hasbro Children's Hospital Providence Rhode Island USA
8. Departments of Emergency Medicine and Pediatrics University of California San Diego School of Medicine San Diego California USA
9. Department of Pediatrics The University of Texas at Austin Dell Medical School Austin Texas USA
10. Pediatric Emergency Medicine University of Alabama at Birmingham Birmingham Alabama USA
11. Pediatric Emergency Medicine Department of Emergency Medicine University of Florida College of Medicine‐Jacksonville Jacksonville Florida USA
12. Pediatrics and Emergency Medicine David Geffen School of Medicine at UCLA Torrance California USA
13. Health Services and Outcomes Research The Los Angeles Biomedical Research Institute Torrance California USA
14. Department of Emergency Medicine Harbor UCLA Medical Center Torrance California USA
15. Emergency Medicine University of Virginia Charlottesville Virginia USA
16. Department of Emergency Medicine University of Oklahoma School of Community Medicine Tulsa Oklahoma USA
17. OU Schusterman Center Tulsa Oklahoma USA