1. Texas A&M University, College Station, TX, USA
2. University of Houston, Houston, TX, USA
3. Medical University of South Carolina, Charleston, SC, USA
4. Ralph H. Johnson VA Medical Center, Charleston, SC, USA
5. Columbia VA Health Care System, Columbia, SC, USA
6. Stanford University School of Medicine, Palo Alto, CA, USA
7. National Center for PTSD, Executive Division, White River Junction, VT, USA
8. San Diego School of Medicine, San Diego, CA, USA
9. VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA
10. University of Texas Health Science Center at Houston, Houston, TX, USA
11. Duke University School of Medicine, Durham, NC, USA