Immune-related adverse events caused by treatment with pembrolizumab in a patient with lung cancer who infected influenza virus oleh Masao Takemura, Mitsuru Motegi, Yuya Kuroiwa, Miki Itai, Kohei Taguchi, Kazue Umetsu, Megumi Uchida, Shunichi Kouno, Mari Sato, Hiroaki Masubuchi, Aya Yamaguchi, Koichi Yamaguchi, Kana Ikeda, Junichi Nakagawa, Toshitaka Maeno