1. Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System , La Jolla, CA 92161, USA
2. Mental Health Service, VA San Diego Healthcare System , La Jolla, CA 92161, USA
3. Research Service, VA San Diego Healthcare System , La Jolla, CA 92161, USA
4. SDSU/UC San Diego Joint Doctoral Program in Clinical Psychology , San Diego, CA 92120, USA
5. Department of Psychiatry, University of California San Diego , La Jolla, CA 92093, USA
6. VA Portland Health Care System , Portland, OR 97239, USA
7. Department of Psychiatry, Oregon Health & Science University , Portland, OR 97239-3098, USA
8. VA Puget Sound Health Care System , Seattle, WA 98108, USA
9. Department of Rehabilitation Medicine, University of Washington School of Medicine , Seattle, WA 98195, USA