Serum kynurenine levels are a novel biomarker to predict the prognosis of patients with hepatocellular carcinoma. oleh Shigemune Bekki, Satoru Hashimoto, Kazumi Yamasaki, Atsumasa Komori, Seigo Abiru, Shinya Nagaoka, Akira Saeki, Tomoyuki Suehiro, Yuki Kugiyama, Asami Beppu, Tamotsu Kuroki, Minoru Nakamura, Masahiro Ito, Hiroshi Yatsuhashi