Fu K, Ikematsu H, Fujii T, Ishikawa T, Tsujinaka Y
Division of Gastrointestinal Oncology and Digestive Endoscopy, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.
J Gastroenterol Hepatol. 2008 Aug;23(8 Pt 1):1308. doi: 10.1111/j.1440-1746.2008.05535.x.