Kim Yong Gil, Byeon Jeong-Sik, Lee Sung Koo, Yang Dong-Hoon, Kim Kyung-Jo, Ye Byong Duk, Myung Seung-Jae, Yang Suk-Kyun, Kim Jin-Ho
Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
Gastrointest Endosc. 2011 Jul;74(1):228-30. doi: 10.1016/j.gie.2010.12.018.