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) OLSEN MF,Randomized controlled trial of prophylactic chest physiotherapy in major abdominal surgery,Br J Surg,,,1997,84,,1539-1540,https://cir.nii.ac.jp/crid/1573668924633892480,