Nivolumab-induced cholangitis in patients with non-small cell lung cancer: Case series and a review of literature. - Izumi, Hiroki; Kodani, Masahiro; Kurai, Jun; Takeda, Kenichi; Okazaki, Ryota; Yamane, Kohei; Teruya, Yasuhiko; Yamamoto, Akihiro; Sueda, Yuriko; Yanai, Masaaki; Tanaka, Natsumi; Sakamoto, Tomohiro; et al. (Molecular & Clinical Oncology, 2019)