1. Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children’s Hospital of Chicago, Feinberg School of Medicine, Northwestern University , Chicago , USA
2. Sections of Pediatric Emergency Medicine and Gastroenterology, Departments of Pediatrics and Emergency Medicine, Cumming School of Medicine, University of Calgary , Calgary , Canada
3. Department of Pediatrics, Cumming School of Medicine, University of Calgary , Calgary , Canada
4. Department of Pediatrics, University of California , Davis , USA
5. Division of Emergency Medicine, Department of Pediatrics, Harvard Medical School, Boston Children’s Hospital , Boston, Massachusetts , USA
6. Department of Emergency Medicine, Hospital Nacional de Niños “Dr. Carlos Sáenz Herrera”, CCSS , San José , Costa Rica
7. Department of Emergency Medicine, Children’s Minnesota , Minneapolis , USA
8. Division of Emergency Medicine, Children’s National Hospital , Washington, District of Columbia , USA
9. Divisions of Emergency Medicine, and Clinical Pharmacology and Toxicology, Department of Pediatrics Hospital for Sick Children , Toronto , Canada
10. Department of Pediatrics, Washington University School of Medicine , St. Louis , USA
11. Department of Emergency Medicine, Montefiore-Nyack Hospital , Nyack, New York , USA
12. Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh , Pittsburgh , USA
13. Division of Emergency and Transport Medicine, Children’s Hospital Los Angeles and Keck School of Medicine of the University of Southern California , Los Angeles , USA
14. Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Alabama at Birmingham , Birmingham , USA
15. Division of Emergency Medicine, Children’s Hospital of Eastern Ontario, Department of Pediatrics, University of Ottawa , Ottawa , Canada
16. Department of Paediatrics, University of British Columbia , Vancouver , Canada
17. Division of Emergency Medicine, Department of Pediatrics, Children’s Hospital of Michigan, Central Michigan University , Detroit , USA
18. Department of Pediatrics, Rady Children’s Hospital, University of California San Diego , San Diego , USA
19. Division of Pediatric Emergency Medicine, Department of Pediatrics, Children’s Hospital of Philadelphia , Philadelphia , USA
20. Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Alberta, Stollery Children’s Hospital, Women’s and Children’s Health Research Institute , Edmonton , Canada
21. Section of Emergency Medicine, Department of Pediatrics, Children’s Hospital Colorado, University of Colorado , Aurora , USA
22. Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU , Bilbao, Basque Country , Spain
23. Divisions of Emergency Medicine and Paediatrics, School of Medicine, Perth Children’s Hospital, University of Western Australia , Perth , Australia
24. Department of Emergency Medicine, KK Women’s and Children’s Hospital, Pediatrics Academic Clinical Programme, Emergency Medicine Academic Clinical Programme, Duke-NUS Medical School , Singapore
25. Department of Emergency Medicine, New York Presbyterian Morgan Stanley Children’s Hospital, Columbia University Irving Medical Center , NY, New York , USA
26. Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital , Cincinnati , USA
27. Department of Pediatrics, Schulich School of Medicine & Dentistry , London , Canada
28. Department of Pediatrics, Hospital Francesc de Borja , Gandia , Spain
29. Department of Pediatrics, Lincoln Medical Center , New York City, Bronx, New York , USA
30. Department of Pediatrics, St. Mary’s Medical Center , West Palm Beach , USA
31. Department of Pediatrics, Children’s Hospital of Eastern Ontario, University of Ottawa , Ottawa , Canada
32. Division of Emergency Medicine, Department of Pediatrics, University of Louisville, Norton Children’s Hospital , Louisville , USA
33. Pediatric Emergency Department, Hospital Universitario Miguel Servet , Zaragoza , Spain
34. Department of Pediatrics, Primary Children’s Hospital, Intermountain Healthcare , Salt Lake City , USA
35. Division of Emergency Medicine, Department of Pediatrics, Emory University School of Medicine, Children’s Healthcare of Atlanta , Atlanta , USA
36. Departments of Emergency Medicine and Pediatrics, University of Michigan School of Medicine , Ann Arbor , USA
37. Division of Emergency Medicine, Department of Pediatrics, McMaster Children’s Hospital , Hamilton , Canada
38. Departamento de Emergencia Pediátrica, Facultad de Medicina, Hospital General Pediátrico Niños de Acosta Ñu, Universidad Privada del Pacífico , San Lorenzo , Paraguay
39. Department of Pediatrics, ASST Spedali Civili di Brescia - Pronto soccorso pediatrico , Brescia , Italy
40. Children’s Emergency Department, Starship Children’s Hospital , Auckland , New Zealand
41. Departments of Surgery and Paediatrics: Child and Youth Health, University of Auckland , Auckland , New Zealand
42. Division of Emergency Medicine, Department of Pediatrics, Medical College of Wisconsin , Milwaukee , USA
43. Department of Pediatrics, Hospital de Pediatría “Prof. Dr. Juan P. Garrahan”, RIDEPLA , Buenos Aires , Argentina
44. Department of Pediatric Emergency Medicine, IWK Health Centre, Dalhousie University , Halifax , Canada
45. Public Health Agency of Canada , Ottawa , Canada
46. Department of Pediatrics and Child Health, Children’s Hospital Research Institute of Manitoba, University of Manitoba , Winnipeg , Canada
47. Centers for Disease Control and Prevention , Atlanta, Georgia , USA
48. Division of Infectious Diseases, Boston Children’s Hospital and Harvard Medical School , Boston , USA
49. Data Analytics and Reporting and Division of Emergency Medicine, Ann and Robert H Lurie Children’s Hospital of Chicago , Chicago, Illinois , USA
50. Departments of Emergency Medicine and Pediatrics, University of California, Davis School of Medicine , Sacramento , USA