Lee Bo-In, Kim Byung-Wook, Choi Hwang, Cho Se-Hyun, Chae Hiun-Suk, Choi Myung-Gyu, Kim Jae-Kwang, Han Sok-Won, Choi Kyu-Yong, Chung In-Sik, Cha Sang-Bok, Sun Hee-Sik
Catholic University of Korea, Seoul, Korea.
Gastrointest Endosc. 2003 Nov;58(5):813-4. doi: 10.1016/s0016-5107(03)02113-8.