著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Donat,Radical cystectomy in octogenarians—does morbidity outweigh the potential survival benefits,J Urol,,,2010,183,,2171,https://cir.nii.ac.jp/crid/1370285709606916737,