Efficacy and safety findings of the EXTRA study in older adult EGFR-mutant lung cancer patients receiving afatinib as first-line treatment

K Kei Morikawa S Saori Takata H Hisashi Tanaka H Hidetoshi Itani M Masashi Ishihara K Kazuya Horiuchi Y Yasuhiro Kato S Shinnosuke Ikemura H Hideyuki Nakagawa Y Yoshiro Nakahara Y Yoshitaka Seki A Akihiro Bessho N Nobumasa Takahashi K Kentaro Hayashi T Takeo Endoh K Kiyoshi Takeyama T Toshiya Maekura N Nagio Takigawa A Akikazu Kawase M Makoto Endoh K Kenji Nemoto K Kazuma Kishi K Kenzo Soejima Y Yusuke Okuma K Kenichi Yoshimura D Daisuke Saigusa Y Yae Kanai K Koji Ueda A Akira Togashi N Noriyuki Matsutani N Nobuhiko Seki