1. Department of Emergency Medicine, University of Washington, Seattle, Washington
2. Emergency Medical Services Division, Public Health Seattle and King County, Seattle, Washington
3. University of Washington School of Medicine, Seattle, Washington
4. Department of Medicine, Division of General Internal Medicine, University of Washington, Seattle, Washington
5. ESO Solutions Inc, Austin, Texas
6. Department of Health Systems and Population Health, Hans Rosling Center for Population Health, University of Washington, Seattle, Washington