Akira Teramoto, Nobuo Aoyama, Chikara Ebisutani, Tsuguhiro Matsumoto, Hirohisa Machida, Shiei Yoshida, Nobufumi Uchima, Takahiro Utsumi, Tomomasa Tochio, Daizen Hirata, Mineo Iwatate, Santa Hattori, Mikio Fujita, Wataru Sano, Yasushi Sano, Gastrointestinal Endoscopy, 2019, DOI: https://doi.org/10.1016/j.gie.2019.12.019.