Figure 1From: Correlation of EGFR expression, gene copy number and clinicopathological status in NSCLCImmunohistochemical EGFR staining with four different antibodies showing differences in levels of EGFR expression in the same specimen of a squamous cell carcinoma (SSC) (original magnification × 400). (A) Staining intensity with Dako PharmDx 2+, (B) Staining intensity with 31G7 2+, (C) Staining intensity with 2.1E1 3+, (D) Staining intensity with SP84 1+.Back to article page