Abe Takashi, Yoshidome Katsuhide, Iijima Hideki, Oyama Tsukasa, Akamatsu Hiroki, Kawai Naoki, Yasumaru Masakazu, Tsujimoto Masahiko, Nishida Tsutomu, Tsujii Masahiko
Endoscopy Center, Osaka University Graduate School of Medicine, Osaka, Japan.
Gastrointest Endosc. 2009 Dec;70(6):1241-2. doi: 10.1016/j.gie.2009.07.013.