The impact of the tumor shrinkage by initial EGFR inhibitors according to the detection of EGFR-T790M mutation in patients with non-small cell lung cancer harboring EGFR mutations oleh Akihiro Yoshimura, Tadaaki Yamada, Naoko Okura, Takayuki Takeda, Wataru Furutani, Yutaka Kubota, Shinsuke Shiotsu, Osamu Hiranuma, Naoya Nishioka, Yusuke Chihara, Nobuyo Tamiya, Yoshiko Kaneko, Junji Uchino, Koichi Takayama