Jeong Hun Kim, Myung Ho Jeong, Young Joon Hong, Ki Hong Lee, In Soo Kim, Yun Ha Choi, Min Goo Lee, Keun-Ho Park, Doo Sun Sim, Ju Han Kim, Youngkeun Ahn, Jeong Gwan Cho, Jong Chun Park, Jung Chaee Kang

Korean Circ J.2012;42(4):246-251.   Published online 2012 April 26     DOI: http://dx.doi.org/10.4070/kcj.2012.42.4.246