| Affiliation: | 1. Health Services Research and Development, Veterans Affairs Puget Sound Healthcare System, Seattle, Washington, Seattle, Washington;2. Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, Washington;3. Provisional Oregon Health and Science University, Portland, Oregon;4. Department of Health Services, Policy, and Practice, School of Public Health, Brown University, Providence, Rhode Island;5. Institute for Social Research, University of Michigan, Ann Arbor, Michigan;6. Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland;7. Providence Veterans Administration Medical Center, Providence, Rhode Island |
