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)
HOVELIUS L,Pneumocholecystitis. An uncommon cause of pneumoperitoneum. A case report,Acta Chir Scand,,,1973,139,,410-413,https://cir.nii.ac.jp/crid/1573950400016431872,