Youl Bae, Myung Ho Jeong, Yang Soo Jang, Kwang Soo Cha, Jong Cheol Park, Jeong Pyeong Seo, Young Keun Ahn, Joo Hyung Park, Jeong Gwan Cho, Jong Chun Park, Jung Chaee Kang, Ock Kyu Park

Korean Circ J.1998;28(1):89-96.   Published online 1998 January 31     DOI: http://dx.doi.org/10.4070/kcj.1998.28.1.89