Won Il Lee, Jeong Jin Jang, Sung Il Hong, Hae Sung Kim, Jeong Hoon Lee, Han Joon Kim, Byoung Yoon Ryu, Hong Ki Kim, Young Hee Choi, Hong Kyu Baik

J Korean Surg Soc.2009;76(5):321-325.   Published online 2009 May 7     DOI: http://dx.doi.org/10.4174/jkss.2009.76.5.321