Asian journal of endoscopic surgery
Kawaguchi Koji K https://orcid.org/0000-0002-5986-9419;Ito Atsushi A https://orcid.org/0000-0001-8607-3013;Kaneda Shinji S ;Kawaguchi Teruhisa T ;Shimamoto Akira A ;Takao Motoshi M https://orcid.org/0000-0003-1305-8554