Research Paper Volume 15, Issue 4 pp 1107—1129
Prognostic significance of epidermal growth factor receptor and programmed cell death-ligand 1 co-expression in esophageal squamous cell carcinoma
Figure 5. (A) Kaplan-Meier curves of OS according to EGFR expression. (B) Kaplan-Meier curves of PFS according to EGFR expression. (C) Kaplan-Meier curves of OS according to PD-L1 expression. (D) Kaplan-Meier curves of PFS according to PD-L1 expression. Abbreviations: OS: Overall Survival; EGFR: Epidermal Growth Factor Receptor; PD-L1: Programmed Death-Ligand 1; PFS: Progression-Free Survival.