1. Department of Emergency Medicine, Yale-New Haven Hospital, New Haven, CT, USA
2. Department of Emergency Medicine and Critical Care, Wayne State University, Detroit, MI, USA
3. Department of Emergency Medicine and Critical Care, Henry Ford Hospital, Detroit, MI, USA
4. Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA
5. Department of Internal Medicine, Yale-New Haven Hospital, The Anlyan Center, New Haven, CT, USA
6. Department of Emergency Medicine, Henry Ford Hospital, Detroit, MI, USA