Jung Ho Kim, Yeon Suk Kim, Dong Kyu Kim, Min Su Ha, Young Jun Lee, Jong Joon Lee, Sang Jin Lee, In Sik Won, Yang Suh Ku, Yun Soo Kim, Ju Hyun Kim
Clin Endosc.2011;44(2):123-128. Published online 2011 December 31
DOI:
http://dx.doi.org/10.5946/ce.2011.44.2.123