Young Keun Ahn, Jeong Gwan Cho, Woo Suk Park, Nam Ho Kim, Youl Bae, Joo Hyung Park, Myung Ho Jeong, Jong Chun Park, Jung Chaee Kang

Korean Circ J.1998;28(5):795-804.   Published online 1998 May 31     DOI: http://dx.doi.org/10.4070/kcj.1998.28.5.795