Duk Kyung Kim, Jae Joong Kim, Cheol Ho Kim, Moon Hong Do, Sung Wook Park, Dae Won Sohn, Kyu Hyung Ryu, Byung Hee Oh, Young Bae Park, Yun Shik Choi, Jung Don Seo, Young Woo Lee

Korean Circ J.1989;19(2):229-236.   Published online 1989 June 30     DOI: http://dx.doi.org/10.4070/kcj.1989.19.2.229