Association of tumour burden with the efficacy of programmed cell death-1/programmed cell death ligand-1 inhibitors for treatment-naïve advanced non-small-cell lung cancer

Shinichiro Suzuki, Koji Haratani, Hidetoshi Hayashi, Yasutaka Chiba, Junko Tanizaki, Ryoji Kato, Seiichiro Mitani, Yusuke Kawanaka, Takashi Kurosaki, Yoshikazu Hasegawa, Takafumi Okabe, Kaoru Tanaka, Yusaku Akashi, Tomohiro Ozaki, Kazuto Nishio, Akihiko Ito, Kazuhiko Nakagawa