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