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Chon JY, Hahn YJ, Sung CH, Moon HS.Chon JY, et al. Among authors: moon hs.J Korean Med Sci. 2012 Jun;27(6):707-10. doi: 10.3346/jkms.2012.27.6.707. Epub 2012 May 26.J Korean Med Sci. 2012.PMID: 22690107Free PMC article.