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) J A M G Tol and L A A Brosens and S van Dieren and T M van Gulik and O R C Busch and M G H Besselink and D J Gouma,Impact of lymph node ratio on survival in patients with pancreatic and periampullary cancer,British Journal of Surgery,0007-1323,Oxford University Press (OUP),2014-12-22,102,3,237-245,https://cir.nii.ac.jp/crid/1360292620550268416,https://doi.org/10.1002/bjs.9709