Kim Y S, Oh Y L, Shon Y W, Yang H D, Lee S I, Cho E Y, Choi C S, Seo G S, Choi S C, Na Y-H
Division of Gastroenterology, Dept. of Internal Medicine, Wonkwang University, Gunpo, South Korea.
Endoscopy. 2006;38 Suppl 2:E41-2. doi: 10.1055/s-2006-944675.