Journal of International Oncology
Clinical efficacy of S-1 combined with gefitinib in the treatment of advanced NSCLC with EGFR-TKI acquired drug resistance
Shen Jingxia, Han Bin, Wang Shuying, Kang Haili, Wang Lidong, Liu Xuhui, Cui Qinggui
Journal of International Oncology . 2019, (12): 723 -727 .  DOI: 10.3760/cma.j.issn.1673-422X.2019.12.004