Jeong Gon Ryoo, Yoon Cheol Kim, Bo Young Sung, Joon Kyung Kim, Joon Yong Chung, In Hwan Sung, Eun-Seok Jeon, Myung Hoon Na, Young Lee

Korean Circ J.1998;28(8):1398-1403.   Published online 1998 August 31     DOI: http://dx.doi.org/10.4070/kcj.1998.28.8.1398