Sung Gyun Ahn, Seung Jea Tahk, Jung Hyun Choi, Sang Yong Yoo, Zhen Guo Zheng, Byoung Joo Choi, Tae Young Choi, So Yeon Choi, Myeong Ho Yoon, Gyo Seung Hwang, Joon Han Shin

Korean Circ J.2005;35(3):264-268.   Published online 2005 March 31     DOI: http://dx.doi.org/10.4070/kcj.2005.35.3.264