1. Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, Maryland, USA.
2. Department of Veterans Affairs, War Related Illness and Injury Study Center (WRIISC), Washington, District of Columbia, USA.
3. Department of Veterans Affairs, Washington DC VA Medical Center, Washington, District of Columbia, USA.
4. Department of Veterans Affairs, Health Outcomes Military Exposures, Veterans Health Administration, Washington, District of Columbia, USA.
5. Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, Massachusetts, USA.
6. Departments of Epidemiology and Psychiatry, Boston University Schools of Public Health and Medicine, Boston, Massachusetts, USA.
7. National Center for PTSD and VA HSR&D Center for Innovation to Implementation (Ci2i), VA Palo Alto Health Care System, Palo Alto, California, USA.
8. Division of Primary Care and Population Health, Stanford University School of Medicine, Palo Alto, California, USA.
9. Departments of Psychiatry and Behavioral Sciences and Public Health, Medical University of SC, Charleston, South Carolina, USA.
10. US Department of Veterans Affairs, Quality Enhancement Research Initiative (QUERI), Washington, District of Columbia, USA.
11. Department of Learning Health Sciences, University of Michigan Medical School, Ann Arbor, Michigan, USA.
12. Department of Psychiatry, Georgetown University Medical Center, Washington, District of Columbia, USA.