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Seto WK, Hui AJ, Wong VW, Wong GL, Liu KS, Lai CL, Yuen MF, Chan HL.Seto WK, et al. Among authors: chan hl.Gut. 2015 Apr;64(4):667-72. doi: 10.1136/gutjnl-2014-307237. Epub 2014 May 15.Gut. 2015.PMID: 24833635