Validation study of postoperative liver failure and mortality risk scores after liver resection for perihilar cholangiocarcinoma

Takehiro Noji, Satoko Uemura, Jimme K. Wiggers, Kimitaka Tanaka, Yoshitsugu Nakanishi, Toshimichi Asano, Toru Nakamura, Takahiro Tsuchikawa, Keisuke Okamura, Pim B. Olthof, William R. Jarnagin, Thomas M. van Gulik, Satoshi Hirano