Woong Chol Kang, Jong-Won Ha, Byung-Chul Chang, Jin-Wuk Kwon, Se-Joong Rim, Namsik Chung, Seung Yun Cho, Sung Soon Kim, Meyun Shick Kang, Sang-Ho Cho, Bum Koo Cho

Korean Circ J.1998;28(7):1131-1140.   Published online 1998 July 31     DOI: http://dx.doi.org/10.4070/kcj.1998.28.7.1131