Kee Joon Choi, Myung Yong Lee, Hyo Soo Kim, Dae Won Sohn, Byung Hee Oh, Myoung Mook Lee, Young Bae Park, Yun Shik Choi, Jung Don Seo, Young Woo Lee

Korean Circ J.1997;27(1):20-29.   Published online 1997 January 31     DOI: http://dx.doi.org/10.4070/kcj.1997.27.1.20