Figure 3From: Targeting EGFR with photodynamic therapy in combination with Erbitux enhances in vivo bladder tumor responseEGFR expression was assessed in tumor sections using immunohistochemistry. The brown colored membrane staining indicates EGFR positive immunoreactivity. (A: Control, B: PDT, C: Erbitux and D: PDT +Erbitux). Magnification: 630×.Back to article page