Figure 1From: Expression of epidermal growth factor receptor is an independent prognostic factor for esophageal squamous cell carcinomaImmunohistochemical detection of epidermal growth factor receptor (EGFR) protein expression in esophageal squamous cell carcinoma (ESCC) tissues. Paraffin-embedded tissue sections were processed for immunohistochemical analysis of EGFR expression, which was semiquantitatively scored. (A) Low and (B) high EGFR expression.Back to article page