Jae Gu Lee, Dae Seok Sim, Gun Ho Kim, Keun Hong Lee, Sung Ho Kim, Moon Hong Doh, Bong Gwan Seo, Jin Hak Choi

Korean Circ J.1991;21(6):1152-1158.   Published online 1991 December 31     DOI: http://dx.doi.org/10.4070/kcj.1991.21.6.1152