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 1. EGFR representative pictures by immunostaining in ESCC. Scale bar represents 50 μm. (A) Staining score 0 negative pattern for EGFR; (B) Staining score 2 negative pattern for EGFR; (C) Staining score 12 negative pattern for EGFR. Abbreviations: EGFR: Epidermal Growth Factor Receptor; ESCC: Esophageal Squamous Cell Carcinoma.