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Nguyen MC, Park JT, Jeon YG, Jeon BH, Hoe KL, Kim YM, Lim HK, Ryoo S.Nguyen MC, et al. Among authors: ryoo s.Yonsei Med J. 2016 Nov;57(6):1329-38. doi: 10.3349/ymj.2016.57.6.1329.Yonsei Med J. 2016.PMID: 27593859Free PMC article.
Koo BH, Yi BG, Wang WK, Ko IY, Hoe KL, Kwon YG, Won MH, Kim YM, Lim HK, Ryoo S.Koo BH, et al. Among authors: ryoo s.Yonsei Med J. 2018 May;59(3):366-375. doi: 10.3349/ymj.2018.59.3.366.Yonsei Med J. 2018.PMID: 29611398Free PMC article.
Choi CI, Koo BH, Hong D, Kwon HJ, Hoe KL, Won MH, Kim YM, Lim HK, Ryoo S.Choi CI, et al. Among authors: ryoo s.Mol Med Rep. 2019 May;19(5):3767-3774. doi: 10.3892/mmr.2019.10035. Epub 2019 Mar 14.Mol Med Rep. 2019.PMID: 30896798