Matsumoto Takayuki, Iida Mitsuo, Matsui Toshiyuki, Yao Tsuneyoshi
Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Gastrointest Endosc. 2007 Sep;66(3 Suppl):S99-107. doi: 10.1016/j.gie.2007.01.004.