1. From Metrocare Services and the Department of Psychiatry, University of Texas Southwestern Medical Center — both in Dallas (C.S.N.); and the Departments of Psychiatry (E.M.S., S.Y.) and Medicine (J.T.C.), Massachusetts General Hospital, and the Departments of Psychiatry (E.M.S., S.Y.) and Medicine (J.T.C.), Harvard Medical School — both in Boston.