Gefitinib-Integrated Regimen versus Chemotherapy Alone in Heavily Pretreated Patients with Epidermal Growth Factor Receptor-Mutated Lung Adenocarcinoma: A Case-Control Study

Gefitinib-Integrated Regimen versus Chemotherapy Alone in Heavily Pretreated Patients with Epidermal Growth Factor Receptor-Mutated Lung Adenocarcinoma: A Case-Control Study