Youn Son Chung, Goo Yeong Cho, Tae Yu Lee, Keun Sook Kim, Chang Soon Choi, Je Hyun Ryu, Min Ho Choi, Woo Jung Park, Chong Yun Rhim, Young Lee

Korean Circ J.2003;33(12):1110-1117.   Published online 2003 December 31     DOI: http://dx.doi.org/10.4070/kcj.2003.33.12.1110