Ji-Yong Jang, Hyuk-Jae Chang, Yangsoo Jang, Sang-Hoon Han, Woo-Dae Bang, Sung Soo Cho, Chang-Myung Oh, Hee Tae Yu, Chi Young Shim, Jong Won Ha, Namsik Chung

Korean Circ J.2010;40(10):539-542.   Published online 2010 October 31     DOI: http://dx.doi.org/10.4070/kcj.2010.40.10.539