1. Center for Health Promotion and Health Equity, Brown University School of Public Health, Providence, Rhode Island, USA.
2. Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, Rhode Island, USA.
3. Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA.
4. The Fenway Institute, Fenway Health, Boston, Massachusetts, USA.
5. Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, Michigan, USA.
6. Population Studies Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA.
7. Health Policy and Management, Oregon Health and Science University-Portland State University School of Public Health, Portland, Oregon, USA.
8. Department of Health Services Policy and Practice, Brown University School of Public Health, Providence, Rhode Island, USA.
9. Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA.
10. Center for Healthcare Organization and Implementation Research, VA Bedford Healthcare System, Bedford, Massachusetts, USA.
11. Section of General Internal Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.