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) STEVENS JH,Port-access coronary artery bypass grafting : a proposed surgical method,J Thorac Cardiovasc Surg,,,1996,111,,567-573,https://cir.nii.ac.jp/crid/1570009750302367744,