1. RAND Corporation, Boston, Massachusetts2Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, Maryland
2. RAND Corporation, Boston, Massachusetts
3. Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, Maryland3Deployment Health Clinical Center, Silver Spring, Maryland4now with National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland
4. RTI International, Research Triangle Park, North Carolina
5. Department of Psychiatry and Behavioral Sciences, School of Medicine, University of Washington, Seattle
6. Veterans Affairs Boston Healthcare System, Boston, Massachusetts
7. Deployment Health Clinical Center, Silver Spring, Maryland