1. Stanford University School of Medicine, Department of Emergency Medicine, Palo Alto, California
2. Harvard Medical School, Department of Emergency Medicine, Boston, Massachusetts
3. Rush University Medical Center, Department of Emergency Medicine, Chicago, Illinois
4. Henry Ford Health System, Department of Emergency Medicine, Detroit, Michigan
5. University of Florida College of Medicine – Jacksonville, Department of Emergency Medicine, Jacksonville, Florida
6. Duke University School of Medicine, Department of Emergency Medicine, Durham, North Carolina