1. Department of Emergency Medicine, School of Medicine, University of Colorado, Aurora, Colorado
2. ESO, Inc., Austin, Texas
3. Oregon Health & Science University and Oregon Institute of Technology, Portland, Oregon
4. Winnipeg Fire Paramedic Service, Winnipeg, Canada
5. Section of Emergency Medicine, University of Chicago Medicine, Chicago, Illinois
6. Department of Emergency Medicine, Denver Health Medical Center, School of Medicine, University of Colorado, Denver, Colorado
7. Tampa General Hospital, Tampa, Florida
8. Division of Pediatric Emergency Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
9. Department of Emergency Medicine, School of Medicine, Duke University, Durham, North Carolina
10. Department of Emergency Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
11. Department of Pre-Hospital Care, Jamaica Hospital Medical Center, Jamaica, New York
12. UNC Department of Emergency Medicine, Chapel Hill, North Carolina
13. St. Charles County Ambulance District, St Peters, Missouri
14. Unified Fire Authority in Salt Lake County, Salt Lake City, Utah
15. Department of Emergency Medicine, Medstar Health, Columbia, Maryland
16. Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York
17. Center for Prehospital Care, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
18. FirstWatch, Carslbad, California
19. Department of Emergency Medicine, University of Rochester Medical Center, Rochester, New York