Epidermal Growth Factor Receptor (EGFR)-Tyrosine Kinase Inhibitor Treatment and Salvage Chemotherapy in EGFR-Mutated Elderly Pulmonary Adenocarcinoma Patients.

Epidermal Growth Factor Receptor (EGFR)-Tyrosine Kinase Inhibitor Treatment and Salvage Chemotherapy in EGFR-Mutated Elderly Pulmonary Adenocarcinoma Patients.