1. The American Genome Center, Collaborative Health Initiative Research Program, and Department of Anatomy, Physiology and Genetics, Uniformed Services University, Bethesda, MD, USA
2. Seattle Epidemiologic Research and Information Center, Office of Research and Development, U.S. Department of Veteran Affairs, Seattle, WA, USA
3. Department of Epidemiology, University of Washington, Seattle, WA, USA
4. Department of Psychiatry and of Family Medicine & Public Health, University of California, La Jolla, CA, USA
5. VA San Diego Center of Excellence for Stress and Mental Health, San Diego, CA, USA
6. Department of Psychological & Brain Sciences, Boston University, Boston, MA, USA
7. Department of Psychiatry, Uniformed Services University, Bethesda, MD, USA
8. Department of Epidemiology, Emory University, Atlanta, GA, USA
9. Department of Anatomy, Physiology and Genetics, Uniformed Services University, Bethesda, MD, USA