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Changes of symptom scores, total, dyspeptic or colonic symptoms, before surgery and at 3 and 6 months after surgery in patients without gastritis (A) and in those with gastritis (B). Dyspeptic symptoms include indigestion, nausea, vomiting, food intolerance, heart burn, acid regurgitation and loss of appetite. Colonic symptoms represent diarrhea and constipation.
