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Depression and quality of life in functional gastrointestinal disorders. The (A) Beck Depression Inventory (BDI) scores, (B) physical component summary of the 12-item Short-Form health survey (SF-12), and (c) mental component summary of the SF-12, for subjects with irritable bowel syndrome (IBS) alone, functional dyspepsia (FD) alone, and IBS-FD overlap, as compared with normal healthy controls. IBS-FD overlap, defined as the fulfillment of the criteria of both IBS and FD.
