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Ha JW, Kang WC, Chung N, Chang BC, Rim SJ, Kwon JW, Jang Y, Shim WH, Cho SY, Kim SS, Cho SH.Ha JW, et al. Among authors: chang bc.Am J Cardiol. 1999 Jun 1;83(11):1579-82, A8. doi: 10.1016/s0002-9149(99)00156-3.Am J Cardiol. 1999.PMID: 10363879
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
Ko YG, Choi DH, Jang YS, Chung NS, Shim WH, Cho SY, Yoo KJ, Chang BC, Choi BW.Ko YG, et al. Among authors: chang bc.Yonsei Med J. 2003 Jun 30;44(3):438-44. doi: 10.3349/ymj.2003.44.3.438.Yonsei Med J. 2003.PMID: 12833581Free article.