Itoi Takao, Kikuyama Masataka, Ishii Kentaro, Matsumura Kazuyoshi, Sofuni Atsushi, Itokawa Fumihide
Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.
Gastrointest Endosc. 2011 Feb;73(2):398-401. doi: 10.1016/j.gie.2010.07.010. Epub 2010 Sep 26.