Myung Ho Jeong, Young Keun Ahn, Youl Bae, Jong Cheol Park, Kwang Soo Cha, Jeong Pyung Seo, Joo Hyung Park, Jeong Gwan Cho, Jong Chun Park, Jung Chaee Kang, Ock Kyu Park

Korean Circ J.1997;27(10):988-994.   Published online 1997 October 31     DOI: http://dx.doi.org/10.4070/kcj.1997.27.10.988