1. Division of Emergency Medicine, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
2. Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
3. Department of Pediatrics, University of California, Davis School of Medicine, Sacramento
4. Division of Emergency Medicine, Ann and Robert H. Lurie Children’s Hospital, Chicago, Illinois
5. Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
6. Division of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts
7. Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
8. Department of Emergency Medicine, Rhode Island Hospital, Providence
9. Department of Pediatrics, Warren Alpert Medical School, Brown University, Providence, Rhode Island
10. Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento
11. Division of Emergency Medicine, St Louis Children’s Hospital, St Louis, Missouri
12. Department of Pediatrics, Washington University School of Medicine in St Louis, St Louis, Missouri
13. Division of Emergency Medicine, NewYork-Presbyterian Morgan Stanley Children’s Hospital, New York
14. Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York
15. Division of Emergency Medicine, Colorado Children’s Hospital, Denver
16. Department of Pediatrics, University of Colorado–Denver School of Medicine, Aurora
17. Division of Emergency Medicine, Nationwide Children’s Hospital, Columbus, Ohio
18. Department of Pediatrics, The Ohio State University College of Medicine, Columbus
19. Department of Pediatrics, University of Utah School of Medicine, Salt Lake City
20. Division of Emergency Medicine, Texas Children’s Hospital, Houston
21. Department of Pediatrics, Baylor College of Medicine, Houston, Texas
22. Division of Emergency Medicine, Children’s National Medical Center, Washington, District of Columbia
23. Department of Pediatrics, George Washington School of Medicine and Health Sciences, Washington, District of Columbia
24. Division of Emergency Medicine, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware
25. Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania
26. Department of Psychology, UC Davis Health, University of California School of Medicine, Sacramento