Glasgow prognostic score predicts efficacy and prognosis in patients with advanced non‐small cell lung cancer receiving EGFR‐TKI treatment oleh Norimitsu Kasahara, Hisao Imai, Ichiro Naruse, Yusuke Tsukagoshi, Mie Kotake, Noriaki Sunaga, Kyoichi Kaira, Toshitaka Maeno, Takayuki Asao, Takeshi Hisada