1. Center to Improve Veteran Involvement in Care, VA Portland Health Care System (R&D 66), Portland, OR, USA
2. School of Public Health, Oregon Health and Science University, Portland, OR, USA
3. Department of Psychiatry and Department of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland, OR, USA
4. Department of Educational and Counseling Psychology, War Related Illness and Injury Study Center, VA New Jersey Health Care System, East Orange, NJ, USA
5. University at Albany, State University of New York, Albany, NY, USA
6. Neuropsychiatry Section, VA Portland Health Care System, Portland, OR, USA
7. Department of Psychiatry, Oregon Health and Science University, Portland, OR, USA
8. Physical Medicine and Rehabilitation Services, Veterans Health Administration, Department ofVeterans Affairs, Washington, D.C., USA
9. Physical Medicine and Rehabilitation Service, Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA
10. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, VA, USA
11. Center for Chronic Disease Outcomes Research, Minneapolis VA Healthcare System, Minneapolis, MN, USA
12. Departments of Medicine and Psychiatry, University of Minnesota Medical School, Minneapolis, MN, USA