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) SIXMA T. K.,"Refined structure of Escherichia coli heat-labile enterotoxin, a close relative of cholera toxin.",J. Mol. Biol.,,,1993,230,,890-918,https://cir.nii.ac.jp/crid/1572543026559549824,