1. Department of Psychiatry, University of California San Diego, La Jolla, CA
2. Department of Health Care Policy, Harvard Medical School, Boston, MA
3. Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA
4. Institute for Social Research, University of Michigan, Ann Arbor, MI
5. Department of Psychology, Harvard University, Cambridge, MA
6. Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD
7. VA San Diego Healthcare System, San Diego, CA