1. Department of Psychiatry, University of California, San Diego, La Jolla
2. Biostatistics Research Center, Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, La Jolla
3. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts
4. Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, Maryland
5. Psychiatry Service, Veterans Affairs San Diego Healthcare System, San Diego, California
6. Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, La Jolla