Sang Hyun Lim, Chong Jin Kim, Hee Yeol Kim, Seung Won Jin, Hui Kyung Chun, Tai Ho Rho, Jang Seong Chae, Jae Hyung Kim, Soon Jo Hong, Kyu Bo Choi, Jeong Seob Yoon, Chi Kyung Kim

Korean Circ J.2000;30(4):502-506.   Published online 2000 April 30     DOI: http://dx.doi.org/10.4070/kcj.2000.30.4.502