Jung Sung Hoon, Lee Kang-Moon, Chung Woo Chul, Paik Chang Nyol, Kim Jin Dong, Kwak Jae Wuk
Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Suwon, Gyeonggi-do, Korea.
Gastrointest Endosc. 2010 Jun;71(7):1302-3. doi: 10.1016/j.gie.2010.01.014.