Jeong Gwan Cho, Myung Ho Jeong, Soon Chul Shin, Seung Jin Yang, Chan Hyung Park, Gwang Chae Gill, Keal Woo Cho, Jong Chun Park, Jung Chaee Kang

Korean Circ J.1989;19(2):349-354.   Published online 1989 June 30     DOI: http://dx.doi.org/10.4070/kcj.1989.19.2.349