1. Office of Mental Health and Suicide Prevention, U.S. Department of Veterans Affairs Central Office, Washington, DC, USA
2. VISN 6 Mental Illness Research, Education and Clinical Center, Durham Veterans Affairs Mental Center, Durham, North Carolina, USA
3. Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA
4. Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA