1. Departments of Emergency Medicine and Internal Medicine; The Ohio State University; Columbus; OH
2. Department of Emergency Medicine; Massachusetts General Hospital; Boston; MA
3. Department of Emergency Medicine; University of Colorado School of Medicine; Aurora; CO
4. Department of Psychiatry and Human Behavior; Brown University; Providence; RI
5. Departments of Emergency Medicine, Psychiatry, and Quantitative Health Sciences; University of Massachusetts Medical School; Worcester; MA