1. Department of Emergency Medicine Brown University Providence Rhode Island USA
2. Department of Emergency Medicine Ohio State University Columbus Ohio USA
3. Department of Emergency Medicine George Washington School of Medicine & Health Services Washington District of Columbia USA
4. Department of Emergency Medicine West Virginia University Morgantown West Virginia USA
5. Warren Alpert School of Medicine Brown University Providence Rhode Island USA
6. Department of Emergency Medicine, Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
7. Department of Emergency Medicine Wayne State University Detroit Michigan USA