1. Massachusetts Veterans Epidemiology Research and Information Center, MAVERIC, VA Boston Healthcare System, 150 S. Huntington Avenue, Boston, MA
2. Department of Psychiatry, Boston University School of Medicine, 72 East Concord Street, Boston, MA
3. Department of Psychiatry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX
4. Behavioral Science Division, National Center for PTSD, VA Boston Healthcare System, 150 South Huntington Ave, Boston, MA
5. Research and Development Service, South Texas Veterans Health Care System, 7400 Merton Minter, San Antonio, TX
6. Department of Psychology, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX
7. Department of Psychological and Brain Sciences, Boston University, 64 Cummington Mall, Boston, MA