A phase II trial of gefitinib monotherapy in pretreated patients with advanced non-small cell lung cancer not harboring activating EGFR mutations: implications of sensitive EGFR mutation test
Moon Ki Choi,Jung Yong Hong,Won Jin Chang,Moon Jin Kim,Sung Min Kim,Hyun Ae Jung,In‐Gu Do,Yoon‐La Choi,Jong‐Mu Sun,Jin Seok Ahn,Keunchil Park,Myung‐Ju Ahn