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 Internal Medicine, The Ohio State University, Columbus
4. RTI International, University of North Carolina at Chapel Hill Evidence-based Practice Center
5. Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University; Portland