The Impact of Tumor Immune Microenvironment in EGFR-Mutant Non-Small Cell Lung Cancer on the Efficacy of Osimertinib.
BACKGROUND The relationship between the tumor microenvironment, comprising programmed cell death-1 ligand-1 (PD-L1), CD8-positive tumor-infiltrating lymphocytes (CD8+TIL), and FOXP3+TIL, in patients with epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer (NSCLC) and its clinicopathological featur...