Ono Satoshi, Fujishiro Mitsuhiro, Goto Osamu, Kodashima Shinya, Omata Masao
Department of Gastroenterology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
Gastrointest Endosc. 2009 Mar;69(3 Pt 2):763-6. doi: 10.1016/j.gie.2008.08.024.