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Cho BC, Choi HJ, Kang SM, Chang J, Lee SM, Yang DG, Hong YK, Lee DH, Lee YW, Kim SK.Cho BC, et al. Among authors: chang j.Yonsei Med J. 2004 Oct 31;45(5):947-51. doi: 10.3349/ymj.2004.45.5.947.Yonsei Med J. 2004.PMID: 15515211Free article.
Kim YS, Chang J, Kim YS, Shin DH, Kim HS, Kim SK, Kim SK.Kim YS, et al. Among authors: chang j.Yonsei Med J. 2002 Aug;43(4):547-52. doi: 10.3349/ymj.2002.43.4.547.Yonsei Med J. 2002.PMID: 12205747Free article.
Chang YS, Chung JH, Shin DH, Chung KY, Kim YS, Chang J, Kim SK, Kim SK.Chang YS, et al. Among authors: chang j.Yonsei Med J. 2004 Jun 30;45(3):435-42. doi: 10.3349/ymj.2004.45.3.435.Yonsei Med J. 2004.PMID: 15227730Free article.
Chung JH, Kim YS, Kim SI, Park K, Park MS, Kim YS, Kim SK, Chang J, Kim SK.Chung JH, et al. Among authors: chang j.Yonsei Med J. 2004 Aug 31;45(4):661-4. doi: 10.3349/ymj.2004.45.4.661.Yonsei Med J. 2004.PMID: 15344207Free article.
Chung JH, Park MS, Kim YS, Chang J, Kim JH, Kim SK, Kim SK.Chung JH, et al. Among authors: chang j.Yonsei Med J. 2005 Jun 30;46(3):388-93. doi: 10.3349/ymj.2005.46.3.388.Yonsei Med J. 2005.PMID: 15988811Free PMC article.Clinical Trial.
Kang W, Kim JS, Cho SH, Kim SK, Chang J, Park MS.Kang W, et al. Among authors: chang j.Yonsei Med J. 2010 May;51(3):448-50. doi: 10.3349/ymj.2010.51.3.448.Yonsei Med J. 2010.PMID: 20376900Free PMC article.
Kwak SM, Park CS, Cho JH, Ryu JS, Kim SK, Chang J, Kim SK.Kwak SM, et al. Among authors: chang j.Yonsei Med J. 2004 Oct 31;45(5):822-8. doi: 10.3349/ymj.2004.45.5.822.Yonsei Med J. 2004.PMID: 15515192Free article.Clinical Trial.
Jung M, Lee CH, Park HS, Lee JH, Kang YA, Kim SK, Chang J, Kim DJ, Rha SY, Kim JH, Cho BC.Jung M, et al. Among authors: chang j.Yonsei Med J. 2013 Jul;54(4):854-64. doi: 10.3349/ymj.2013.54.4.854.Yonsei Med J. 2013.PMID: 23709418Free PMC article.
Cho ES, Chang J, Chung KY, Shin DH, Kim YS, Kim SK, Kim SK.Cho ES, et al. Among authors: chang j.Yonsei Med J. 2002 Apr;43(2):145-51. doi: 10.3349/ymj.2002.43.2.145.Yonsei Med J. 2002.PMID: 11971207Free article.
Kee HJ, Shin JH, Chang J, Chung KY, Shin DH, Kim YS, Kim SK, Kim SK.Kee HJ, et al. Among authors: chang j.Yonsei Med J. 2003 Feb;44(1):65-74. doi: 10.3349/ymj.2003.44.1.65.Yonsei Med J. 2003.PMID: 12619177Free article.