Hyeong Kweon Kim, Moo Hyun Kim, Kwang Soo Cha, Young Dae Kim, Jong Seong Kim, Bum Yong Sung, Kyu Don Kong, Mi Kyung Kim, Joo Ho Kim, Kwang Ung Ri

Korean Circ J.1998;28(7):1202-1206.   Published online 1998 July 31     DOI: http://dx.doi.org/10.4070/kcj.1998.28.7.1202