1. Department of Defense Center for Deployment Health Research, Naval Health Research Center, P.O. Box 85122, San Diego, CA 92186-5122
2. U.S. Army Research Institute of Environmental Medicine, Total Army Injury and Health Outcomes Database Project, Natick, MA 01760-5007
3. Seattle Epidemiologic Research and Information Center, Department of Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108
4. Department of Preventive Medicine and Biometrics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799
5. Department of Defense, Office of the Assistant Secretary of Defense for Health Affairs, Falls Church, VA 22041-3206