Affiliation: | Taketo Otsuka, Mitsushige Sugimoto, Hiromitsu Ban, Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu 520-2192, JapanToshiro Nakata, Masaki Murata, Atsushi Nishida, Osamu Inatomi, Shigeki Bamba, Akira Andoh, Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu 520-2192, Japan |