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