A phase II trial of erlotinib monotherapy for pretreated elderly patients with advanced EGFR wild-type non-small cell lung cancer Cancer

Hiroyuki Minemura, Hiroshi Yokouchi, Keisuke Azuma, Ken Ichiro Hirai, Satoko Sekine, Kengo Oshima, Kenya Kanazawa, Yoshinori Tanino, Yayoi Inokoshi, Taeko Ishii, Yutaka Katsuura, Akio Oishi, Takashi Ishida, Mitsuru Munakata