著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Robert Bechara and Matthew Woo and Lawrence Hookey and Wiley Chung and Kevin Grimes and Haruo Ikeda and Manabu Onimaru and Kazuya Sumi and Jun Nakamura and Yoshitaka Hata and Shota Maruyama and Kuniyo Gomi and Yuto Shimamura and Haruhiro Inoue,Peroral endoscopic myotomy (POEM) for complex achalasia and the POEM difficulty score,Digestive Endoscopy,0915-5635,Wiley,2019-02-03,31,2,148-155,https://cir.nii.ac.jp/crid/1360285710478365568,https://doi.org/10.1111/den.13294