1. Pacific Northwest Evidence-based Practice Center, Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland
2. Department of Family Medicine, Oregon Health & Science University, Portland
3. Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland
4. School of Public Health, Oregon Health & Science University–Portland State University
5. Kaiser Permanente, Center for Health Research, Portland, Oregon