Sung Woon Moon, Tae Hyo Kim, Hyeon Sik Kim, Ji-Hyeon Ju, Yeon Jeong Ahn, Hyun Jeong Jang, Sang Goon Shim, Hyun Jin Kim, Woon Tae Jung, Ok-Jae Lee
Clin Endosc.2012;45(4):392-396. Published online 2012 November 30
DOI:
http://dx.doi.org/10.5946/ce.2012.45.4.392