1. Department of Emergency Medicine, University of Texas Health Science Center at Houston
2. Department of Emergency Medicine, University of Alabama at Birmingham
3. Clinical Trials Center, Department of Biostatistics, University of Washington, Seattle
4. Department of Emergency Medicine, Oregon Health and Science University, Portland
5. Department of Emergency Medicine, University of Texas Southwestern Medical Center, Dallas
6. Department of Emergency Medicine, Saint Vincent Hospital, Allegheny Health Network, Erie, Pennsylvania
7. University of Pittsburgh, Pittsburgh, Pennsylvania
8. Department of Emergency Medicine, Medical College of Wisconsin, Milwaukee
9. MedStar Mobile Healthcare, Fort Worth, Texas
10. currently with Department of Emergency Medicine, John Peter Smith Health Network, Fort Worth, Texas
11. Clackamas Fire District #1, Milwaukie, Oregon
12. Milwaukee County Office of Emergency Management, Milwaukee, Wisconsin
13. National Heart, Lung, and Blood Institute, Bethesda, Maryland
14. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
15. Departments of Emergency Medicine and Medicine, Harborview Center for Prehospital Emergency Care, University of Washington, Seattle