1. Department of Emergency Medicine, Highland Hospital—Alameda Health System, Oakland, California
2. Department of Emergency Medicine, University of California, San Francisco, San Francisco
3. Keck School of Medicine, University of Southern California, Los Angeles
4. Yale Center for Analytical Sciences, Yale University, New Haven, Connecticut
5. Department of Emergency Medicine, Yale School of Medicine, New Haven, Connecticut
6. Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, New York, New York
7. Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle
8. Department of Chronic Disease Epidemiology Yale School of Public Health, New Haven, Connecticut