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Lee S, Kim IH, Kim SH, Kim SW, Lee SO, Lee ST, Kim DG, Lee CS, Choi CS, Cho EY, Kim HC.Lee S, et al. Among authors: cho ey.Intervirology. 2010;53(3):146-53. doi: 10.1159/000274975.Intervirology. 2010.PMID: 20068348
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Kim TH, Cho EY, Oh HJ, Choi CS, Kim JW, Moon HB, Kim HC.Kim TH, et al. Among authors: cho ey.J Korean Med Sci. 2006 Apr;21(2):279-83. doi: 10.3346/jkms.2006.21.2.279.J Korean Med Sci. 2006.PMID: 16614514Free PMC article.
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Choi CS, Kim HC, Kim TH, Seo GS, Kim KH, Cho EY, Seo SO, Oh HJ, Choi SC.Choi CS, et al. Among authors: cho ey.Gastrointest Endosc. 2008 Jul;68(1):155-9. doi: 10.1016/j.gie.2008.02.043. Epub 2008 Jun 2.Gastrointest Endosc. 2008.PMID: 18513720Review.
Choi CS, Kim KH, Seo GS, Cho EY, Oh HJ, Choi SC, Kim TH, Kim HC, Roh BS.Choi CS, et al. Among authors: cho ey.World J Gastroenterol. 2008 Aug 14;14(30):4834-7. doi: 10.3748/wjg.14.4834.World J Gastroenterol. 2008.PMID: 18720550Free PMC article.Review.