1. Department of Emergency Medicine Johns Hopkins University School of Medicine Baltimore Maryland USA
2. Department of Emergency Medicine David Geffen School of Medicine at UCLAAcute Care College Los Angeles California USA
3. Department of Emergency Medicine Ronald Reagan UCLA Medical Center Los Angeles California USA
4. Evaluation and Assessment Department of Emergency Medicine Stanford University School of Medicine Palo Alto California USA
5. Internal Medicine Department of Emergency Medicine Emory University School of Medicine Atlanta Georgia USA
6. Department of Emergency Medicine Emory University School of Medicine Atlanta Georgia USA