Seong Hoe Koo, Ji Kong Sung, Sun Soo Park, Seung Woo Park, Hyo Soo Kim, Dae Won Sohn, Chul Ho Kim, Byung Hee Ho, Myung Mook Lee, Young Bae Park, Yun Shik Choi, Jung Don Seo, Young Woo Lee

Korean Circ J.1993;23(6):928-938.   Published online 1993 December 31     DOI: http://dx.doi.org/10.4070/kcj.1993.23.6.928