Kwang Soo Cha, Jeong Gwan Cho, Ju Han Kim, Jun Woo Kim, Sung Hee Kim, Youl Bae, Young Keun Ahn, Jong Cheol Park, Jeong Pyung Seo, Joo Hyung Park, Myung Ho Jeong, Jong Chun Park, Jung Chaee Kang

Korean Circ J.1998;28(7):1091-1095.   Published online 1998 July 31     DOI: http://dx.doi.org/10.4070/kcj.1998.28.7.1091