Young Hak Kim, Duk Hyun Kang, Jae Kwan Song, Myeong Ki Hong, Jae Joong Kim, Seong Wook Park, Seung Jung Park, Hyun Song

Korean Circ J.1997;27(7):721-729.   Published online 1997 July 31     DOI: http://dx.doi.org/10.4070/kcj.1997.27.7.721