Kim B W, Cho S H, Rha S E, Choi H, Choi K Y, Cha S B, Choi M G, Chung I S, Sun H S, Park D H
Division of Gastroenterology, Department of Internal Medicine and Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Gastrointest Endosc. 2000 Dec;52(6):772-5. doi: 10.1067/mge.2000.108922.