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Kwon HS, Sohn IS, Lee JY, Lee SJ, Kim SN, Kim BJ.Kwon HS, et al.Int J Gynaecol Obstet. 2009 Jan;104(1):37-9. doi: 10.1016/j.ijgo.2008.08.020. Epub 2008 Oct 11.Int J Gynaecol Obstet. 2009.PMID: 18851856
Cho GJ, An JJ, Choi SJ, Oh SY, Kwon HS, Hong SC, Kwon JY.Cho GJ, et al. Among authors: kwon hs, kwon jy.J Korean Med Sci. 2015 Dec;30(12):1841-6. doi: 10.3346/jkms.2015.30.12.1841. Epub 2015 Nov 30.J Korean Med Sci. 2015.PMID: 26713061Free PMC article.
Kwon HS, Park JH, Hwang HS, Sohn IS, Kim YH, Cho S.Kwon HS, et al.Reprod Sci. 2018 Sep;25(9):1436-1445. doi: 10.1177/1933719117746760. Epub 2017 Dec 19.Reprod Sci. 2018.PMID: 29258409