Itoi Takao, Gotoda Takuji, Yasuda Ichiro, Katanuma Akio, Ryozawa Shomei, Irisawa Atsushi, Moriyasu Fuminori
Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, National Cancer Center Central Hospital, Tokyo, Japan.
Gastrointest Endosc. 2007 Sep;66(3):622-5. doi: 10.1016/j.gie.2006.12.008. Epub 2007 May 24.