Jihyun Yang, Seok-Jin Ko, Beom-Suk Kim, Hyun-Seo Kim, Sangheon Park, Doran Hong, Soon-Woong Hong, Ji-Hyun Choi, Chi-Yeon Park, Seung-Cheol Choi, Sun-Jun Hong, Do-Sun Lim

Korean Circ J.2009;39(5):198-204.   Published online 2009 May 28     DOI: http://dx.doi.org/10.4070/kcj.2009.39.5.198