An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Chang BC, Kim NH, Jeong SH, Ra SW, Kim WK, Kim SS, Cho BK.Chang BC, et al.Yonsei Med J. 1995 Sep;36(4):378-85. doi: 10.3349/ymj.1995.36.4.378.Yonsei Med J. 1995.PMID: 7483682Free article.
Kim SH, Chang BC, Tack G, Huh JM, Kang MS, Cho BK, Park YH.Kim SH, et al. Among authors: chang bc.Yonsei Med J. 1994 Sep;35(3):271-8. doi: 10.3349/ymj.1994.35.3.271.Yonsei Med J. 1994.PMID: 7975736Free article.
Kim SH, Chang BC, Cho BK.Kim SH, et al. Among authors: chang bc.Yonsei Med J. 1994 Mar;35(1):72-6. doi: 10.3349/ymj.1994.35.1.72.Yonsei Med J. 1994.PMID: 8009899Free article.
Yoo SK, Kim KM, Kim NH, Huh JM, Chang BC, Cho BK.Yoo SK, et al. Among authors: chang bc.Yonsei Med J. 1997 Aug;38(4):193-201. doi: 10.3349/ymj.1997.38.4.193.Yonsei Med J. 1997.PMID: 9339126Free article.
Chang BC, Ha JW, Kim JT, Chung N, Cho SH.Chang BC, et al.Ann Thorac Surg. 1999 Jan;67(1):226-8. doi: 10.1016/s0003-4975(98)01081-9.Ann Thorac Surg. 1999.PMID: 10086555
Huh JM, Yoo SK, Kim NH, Chang BC, Lee DY, Cho BK, Bae SH, Kim KM, Kim EJ, Kim GD.Huh JM, et al. Among authors: chang bc.Stud Health Technol Inform. 1998;52 Pt 2:1091-4.Stud Health Technol Inform. 1998.PMID: 10384629
Chang BC, Lim SH, Kim DK, Seo JY, Cho SY, Shim WH, Chung N, Kim SS, Cho BK.Chang BC, et al.J Heart Valve Dis. 2001 Mar;10(2):185-194; discussion195.J Heart Valve Dis. 2001.PMID: 11297205
Ha JW, Choi SH, Chang BC, Nam CM, Jang Y, Chung N, Shim WH, Cho SY, Kim SS.Ha JW, et al. Among authors: chang bc.Ann Thorac Surg. 2002 Oct;74(4):1115-9. doi: 10.1016/s0003-4975(02)03856-0.Ann Thorac Surg. 2002.PMID: 12400754