1. Department of Psychology, The Ohio State University, Columbus, Ohio, USA.
2. National Center for PTSD, VA Boston Healthcare System, Boston, Massachusetts, USA.
3. Psychiatry and Biomedical Genetics, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts, USA.
4. Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, USA.
5. Chronic Brain Injury Initiative, The Ohio State University, Columbus, Ohio, USA.