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Song SH, Kim KW, Kim WH, Kwon CI, Ko KH, Hahm KB, Park PW, Hong SP.Song SH, et al. Among authors: kwon ci.Clin Endosc. 2013 Sep;46(5):572-5. doi: 10.5946/ce.2013.46.5.572. Epub 2013 Sep 30.Clin Endosc. 2013.PMID: 24143323Free PMC article.
Kim GW, Kwon CI, Song SH, Jin SM, Kim KH, Moon JH, Hong SP, Park PW.Kim GW, et al. Among authors: kwon ci.Clin Endosc. 2013 Sep;46(5):586-90. doi: 10.5946/ce.2013.46.5.586. Epub 2013 Sep 30.Clin Endosc. 2013.PMID: 24143327Free PMC article.
Ko KH, Kwon CI, Park SH, Han NY, Lee HK, Kim EH, Hahm KB.Ko KH, et al. Among authors: kwon ci.Clin Endosc. 2013 Nov;46(6):611-9. doi: 10.5946/ce.2013.46.6.611. Epub 2013 Nov 19.Clin Endosc. 2013.PMID: 24340253Free PMC article.Review.