Lee Chang Kyun, Lee Suck-Ho, Chung Il-Kwun, Lee Tae Hoon, Park Sang-Heum, Kim Eun Ok, Chung Myung Soon, Cho Hyun Deuk, Kim Sun-Joo
Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Korea.
Gastrointest Endosc. 2012 Feb;75(2):457-9. doi: 10.1016/j.gie.2011.03.1245. Epub 2011 Jun 15.