1. Department of Anesthesiology; University of North Carolina; Chapel Hill; USA
2. Department of Emergency Medicine; University of North Carolina; Chapel Hill; USA
3. Department of Emergency Medicine; Massachusetts General Hospital; Boston; USA
4. Department of Emergency Medicine; Spectrum Health Hospital - Butterworth Campus; Grand Rapids; USA
5. Department of Emergency Medicine; William Beaumont Hospital; Royal Oak; USA
6. Department of Emergency Medicine; St Joseph Mercy Hospital; Ann Arbor; USA
7. Department of Emergency Medicine; North Shore University Hospital; Manhasset; USA
8. Department of Emergency Medicine; Baystate Medical Center; Springfield; USA
9. Department of Emergency Medicine; College of Medicine; University of Florida and Shands Jacksonville; Jacksonville; USA
10. Department of Community Dentistry and Behavioral Science; College of Dentistry; University of Florida; Gainesville; USA