1. U.S. Department of Veterans Affairs, Center for Healthcare Organization and Implementation Research, VA Boston Healthcare System, Department of Psychiatry Harvard Medical School Boston Massachusetts USA
2. U.S. Department of Veterans Affairs, Veterans Integrated Service Network 17 Center of Excellence for Research on Returning War Veterans, Central Texas Veterans Healthcare System, Department of Psychiatry and Behavioral Sciences, Dell Medical School University of Texas at Austin Austin Texas USA
3. UCLA Health Los Angeles California USA
4. U.S. Department of Veterans Affairs, South Central Mental Illness Research, Education and Clinical Center, Health Services Research & Development Center for Innovations in Quality, Effectiveness and Safety, Department of Psychiatry and Behavioral Sciences Baylor College of Medicine Houston Texas USA
5. U.S. Department of Veterans Affairs, Health Services Research & Development Center for Innovations in Quality, Effectiveness and Safety Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine Houston Texas USA
6. Department of Psychiatry and Behavioral Sciences Baylor College of Medicine Houston Texas USA