Soung-Ho Kim, Do-Yeon Hwang, Seok-Gyu Song, Hyeok-Jin Kwon, Sun-Yeon Cho, Duk-Hoon Park, Jung-Dal Lee, Jong Kyun Lee

J Korean Surg Soc.2011;80(3):189-193.   Published online 2011 March 15     DOI: http://dx.doi.org/10.4174/jkss.2011.80.3.189