Affiliation: | 1. Health Services Research and Development (HSR&D), Veterans Affairs (VA) Puget Sound Health Care System, , Seattle, WA, USA;2. Department of Health Services, University of Washington, , Seattle, WA, USA;3. Group Health Research Institute, , Seattle, WA, USA;4. Primary and Specialty Medical Care Service, Veterans Affairs (VA) Puget Sound Health Care System, , Seattle, WA, USA;5. Department of Medicine, University of Washington, , Seattle, WA, USA |