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) BARNHART GR,Degeneration and calcification of bioprosthetic cardiac valves. Bioprosthetic tricuspid valve implantation in sheep,Am J Pathol,,,1982,106,,136-139,https://cir.nii.ac.jp/crid/1570009750260892544,