Li, Xiaofeng, Zhanqiang Zhai, Youcai Zhu, and Haiou Zhou. 2022. “Comparison of Gefitinib in the Treatment of Patients With Non-Small Cell Lung Cancer and Clinical Effects of Osimertinib and EGFR Gene Mutation”. Pakistan Journal of Medical Sciences 38 (6). https://doi.org/10.12669/pjms.38.6.5456.