Sang Bo Oh, Jinhee Ahn, Min Young Oh, Bo Gwang Choi, Ji Hyun Kang, Yun Kyung Jeon, Sang Soo Kim, Bo Hyun Kim, Yong Ki Kim, In Joo Kim

J Korean Med Sci.2012;27(7):822-826.   Published online 2012 June 29     DOI: http://dx.doi.org/10.3346/jkms.2012.27.7.822