Impact of concomitant medication on clinical outcomes in patients with advanced non‐small cell lung cancer treated with immune checkpoint inhibitors: A retrospective study oleh Kaho Miura, Yoshiyuki Sano, Seiji Niho, Kenji Kawasumi, Nobuo Mochizuki, Kiyotaka Yoh, Shingo Matsumoto, Yoshitaka Zenke, Takaya Ikeda, Kaname Nosaki, Keisuke Kirita, Hibiki Udagawa, Koichi Goto, Toshikatsu Kawasaki, Kazuhiko Hanada