1. Harvard Affiliated Emergency Medicine Residency, Beth Israel Deaconess Medical Center, Boston, Massachusetts
2. Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado
3. Department of Emergency Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
4. Department of Emergency Medicine, Duke University School of Medicine, Durham, North Carolina
5. ESO, Austin, Texas
6. Pikes Peak State College, Colorado Springs, Colorado
7. Willacy County EMS, Willacy County, Texas
8. Lee County EMS, Lee County, Florida
9. Department of Emergency Medicine, Medical Center of Aurora, Aurora, Colorado
10. University of Texas at Dallas, Dallas, Texas
11. Prehospital Care Research Forum, University of California Los Angeles David Geffen School of Medicine, Los Angeles, California
12. Medical Center Library, Duke University School of Medicine, Durham, North Carolina
13. Section of Emergency Medicine, University of Chicago Medicine, Chicago, Illinois