1. Baylor Scott & White Warriors Research Institute, Waco, TX, USA
2. Department of Psychiatry & Behavioral Science, Texas A&M University Health Science Center, Temple, TX, USA
3. New York City Fire Department Counseling Services Unit, New York, NY, USA
4. Boston Fire Department, Boston, MA, USA
5. Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, PA, USA
6. Durham Veterans Affairs Medical Center, Durham, NC, USA
7. VA Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA
8. Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA