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) BORODY TJ,Helicobacter pylorinegative duodenal ulcer,Am J Gastroenterol,,,1991,86,,1154-1157,https://cir.nii.ac.jp/crid/1572824499818160640,