1. Department of Psychology, Harvard University, Cambridge, MA, USA
2. Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
3. Rocky Mountain Mental Illness Research, Education and Clinical Center, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA
4. Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO, USA
5. Department of Psychology, Florida State University, Tallahassee, FL, USA
6. Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services University School of Medicine in Bethesda, Bethesda, MD, USA