Sang Chang Kwon, Sung Won Choi, Seong Ho Choi, Hee Seung Park, Seung Heon Lee, Bong Gun Kim, Eun Hee Seo, Mun Jang, Seung Min Ryu, Dong Hyun Kim, Young Hoon Kim, Jun Ouk Ha, Jae Seung Lee
Intest Res. 2014;12(1):60-65. Published online January 28, 2014