Affiliation: | 1. Health Services Research and Development, Central Arkansas Veterans Healthcare System, North Little Rock, AR;2. South Central Mental Illness Research Education and Clinical Center, Central Arkansas Veterans Healthcare System, North Little Rock, AR;3. Department of Psychiatry, University of Arkansas for Medical Sciences, Little Rock, AR;4. Veterans'' Health Care System of the Ozarks, Fayetteville, AR;5. Behavioral Medicine Service, Loma Linda Healthcare System, Department of Veterans Affairs, Loma Linda, CA |