Ji Dong Sung, Song Hoe Koo, Ha Jin Lim, Myoung Yoong Lee, Hyo Soo Kim, Dae Won Sohn, Byoung Hee Oh, Myoung Mook Lee, Young Bae Park, Yoon Sik Choi, Jung Don Seo, Young Woo Lee

Korean Circ J.1993;23(5):669-675.   Published online 1993 October 31     DOI: http://dx.doi.org/10.4070/kcj.1993.23.5.669