Shim Jae-Jun, Jang Jae Young, Chang Rin
Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, Kyung Hee University, Seoul, Korea.
Gastrointest Endosc. 2011 Aug;74(2):406-7. doi: 10.1016/j.gie.2011.03.1118. Epub 2011 Jun 25.