Hae Jong Choi, Moo Hyun Kim, Chang Ho Yang, Kwang Soo Cha, Seong Geun Kim, Su Hun Lee, Sang Gon Kim, Young Dae Kim, Jong Seong Kim

Korean Circ J.2000;30(8):921-926.   Published online 2000 August 31     DOI: http://dx.doi.org/10.4070/kcj.2000.30.8.921