1. Department of Emergency Medicine; University of Cincinnati; Cincinnati OH USA
2. Department of Emergency Medicine; Northwestern University; Chicago IL USA
3. Department of Emergency Medicine; Vanderbilt University; Nashville TN USA
4. Department of Emergency Medicine; University of Pennsylvania; Philadelphia PA USA
5. Department of Emergency Medicine; University of California-Davis; Sacramento CA USA
6. Department of Emergency Medicine; Wake Forest University; Winston Salem NC USA
7. Department of Emergency Medicine; Henry Ford Hospital; Detroit MI USA
8. Department of Emergency Medicine; Cleveland Clinic; Cleveland OH USA
9. Department of Anesthesiology and Critical Care; Hospital Geral de Santo António; Porto Portugal
10. Department of Anesthesiology and Critical Care Medicine Hopital Lariboisiere; Université Paris Diderot; U942 Inserm Paris France
11. Division of Cardiology; Northwestern University; Chicago IL USA