Expression and clinical significance of programmed cell death protein 1/programmed death-ligand 1 in non-small cell lung cancer patients with rare mutations of epidermal growth factor receptor gene: A retrospective cohort study

This study underscored the importance of PD-1 and PD-L1 expression as prognostic and predictive markers in NSCLC patients with uncommon EGFR mutations. These biomarkers are crucial for achieving informed treatment choices and enhancement of prognostic evaluations in this specific group.