Affiliation: | Osamu Toyoshima, Toshihiro Nishizawa, Masahide Arita, Yosuke Kataoka, Kosuke Sakitani, Shuntaro Yoshida, Hiroharu Yamashita, Keisuke Hata, Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 1570066, JapanHidenobu Watanabe, Department of Pathology, Pathology and Cytology Laboratory Japan, Tokyo 1660003, JapanHidekazu Suzuki, Medical Education Center, Keio University School of Medicine, Tokyo 1608582, Japan |