Ki Woo Seo, Eun Young Kim, Jeong Eun Kim, Eun Jung Cho, Jee Eun Kwon, Min Seok Oh, Joon Hwa Hong, Jae Seung Seo, Wang-Soo Lee, Kwang Je Lee, Sang-Wook Kim, Tae Ho Kim, Chee Jeong Kim, Dae Yun Cho, Wang Seong Ryu

Korean Circ J.2010;40(6):260-265.   Published online 2010 June 29     DOI: http://dx.doi.org/10.4070/kcj.2010.40.6.260