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From the Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, and the Divisions of Geriatric Psychiatry\/Neuropsychiatry and Psychiatric Epidemiology, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center\/University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Address correspondence to Dr. Trzepacz, University of Mississippi Medical..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benoit H.","family":"Mulsant","sequence":"additional","affiliation":[{"name":"Received August 20, 1996; revised April 21, 1997; accepted April 25, 1997. From the Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, and the Divisions of Geriatric Psychiatry\/Neuropsychiatry and Psychiatric Epidemiology, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center\/University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Address correspondence to Dr. Trzepacz, University of Mississippi Medical..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mary Amanda","family":"Dew","sequence":"additional","affiliation":[{"name":"Received August 20, 1996; revised April 21, 1997; accepted April 25, 1997. From the Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, and the Divisions of Geriatric Psychiatry\/Neuropsychiatry and Psychiatric Epidemiology, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center\/University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Address correspondence to Dr. Trzepacz, University of Mississippi Medical..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rona","family":"Pasternak","sequence":"additional","affiliation":[{"name":"Received August 20, 1996; revised April 21, 1997; accepted April 25, 1997. From the Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, and the Divisions of Geriatric Psychiatry\/Neuropsychiatry and Psychiatric Epidemiology, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center\/University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Address correspondence to Dr. Trzepacz, University of Mississippi Medical..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert A.","family":"Sweet","sequence":"additional","affiliation":[{"name":"Received August 20, 1996; revised April 21, 1997; accepted April 25, 1997. From the Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, and the Divisions of Geriatric Psychiatry\/Neuropsychiatry and Psychiatric Epidemiology, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center\/University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Address correspondence to Dr. Trzepacz, University of Mississippi Medical..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George S.","family":"Zubenko","sequence":"additional","affiliation":[{"name":"Received August 20, 1996; revised April 21, 1997; accepted April 25, 1997. 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