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Jeon SW, Park YK, Chang SG.Jeon SW, et al. Among authors: chang sg.J Korean Med Sci. 2009 Aug;24(4):741-3. doi: 10.3346/jkms.2009.24.4.741. Epub 2009 Jul 29.J Korean Med Sci. 2009.PMID: 19654962Free PMC article.
Chang SG, Lee SC, Park YK, Chai SE.Chang SG, et al.J Korean Med Sci. 1991 Sep;6(3):284-6. doi: 10.3346/jkms.1991.6.3.284.J Korean Med Sci. 1991.PMID: 1777135Free PMC article.
Chang SG, Hwang IC, Lee JH, Park YK, Lim JW.Chang SG, et al.J Korean Med Sci. 2003 Feb;18(1):125-6. doi: 10.3346/jkms.2003.18.1.125.J Korean Med Sci. 2003.PMID: 12589102Free PMC article.
Sung W, Lee S, Park YK, Chang SG.Sung W, et al. Among authors: chang sg.J Korean Med Sci. 2010 Apr;25(4):608-12. doi: 10.3346/jkms.2010.25.4.608. Epub 2010 Mar 19.J Korean Med Sci. 2010.PMID: 20358006Free PMC article.
Na KY, Kim HS, Park YK, Chang SG, Kim YW.Na KY, et al. Among authors: chang sg.Korean J Pathol. 2012 Aug;46(4):382-6. doi: 10.4132/KoreanJPathol.2012.46.4.382. Epub 2012 Aug 23.Korean J Pathol. 2012.PMID: 23110033Free PMC article.
Kim HS, Sung W, Lee S, Chang SG, Park YK.Kim HS, et al. Among authors: chang sg.Pathol Res Pract. 2009;205(4):249-54. doi: 10.1016/j.prp.2008.10.005. Epub 2008 Dec 6.Pathol Res Pract. 2009.PMID: 19058917