1. Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, CA, USA
2. Department of Family Medicine, University of Michigan, Ann Arbor, MI, USA
3. Health Services Research & Development, VA Puget Sound Health Care System, Seattle, WA, USA
4. Department of Medicine, School of Medicine, University of Washington, Seattle, WA
5. School of Public Health, University of Michigan, Ann Arbor, MI, USA