1. Center for Policy and Research in Emergency Medicine; Department of Emergency Medicine; Oregon Health & Science University; Portland OR
2. Department of Public Health and Preventive Medicine; Center for Policy and Research in Emergency Medicine; Department of Emergency Medicine; Oregon Health & Science University; Portland OR
3. Kaiser Permanente Professor of Evidence-Based Family Medicine; Department of Family Medicine; Department of Medicine; Department of Public Health & Preventive Medicine; Oregon Health & Science University; Portland OR