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Lee JG, Leung JW.Lee JG, et al. Among authors: leung jw.Gastrointest Endosc Clin N Am. 1996 Jan;6(1):43-55.Gastrointest Endosc Clin N Am. 1996.PMID: 8903562Review.
Lee JG, Schutz SM, England RE, Leung JW, Cotton PB.Lee JG, et al. Among authors: leung jw.Hepatology. 1995 Mar;21(3):661-7.Hepatology. 1995.PMID: 7875664