| Affiliation: | 1. The Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon;2. Maine Medical Center Research Institute, Portland, Maine;3. Group Health Research Institute, Seattle, Washington;4. Department of Population Medicine, Harvard Medical School, Boston, Massachusetts;5. Geisinger Center for Health Research, Danville, Pennsylvania;6. Meyers Primary Care Institute, University of Massachusetts Medical School, Fallon Community Health Plan, Reliant Medical Group, Worcester, Massachusetts;7. Department of Family Medicine and Community Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania |
