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7 - Fukase K, Kato M, Kikuchi S, Inoue K, Uemura N, Okamoto S et al. Effect of eradication of Helicobacter pylori on incidence of metachronous gastric carcinoma after endoscopic resection of early gastric cancer: an open-label, randomised controlled trial. Lancet 2008 Aug 2;372(9636):392-7.