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Immunohistochemistry for EGFR and p-EGFR (Y845). (A,B): IP-19. EGFR, but not p-EGFR (Y845), was detected in the basal cell layers of IP. (C,D): The IP part of IP-SCC-2 with S768_D770dup. (E,F): SCC part of IP-SCC-2 with S768_D770dup. EGFR and p-EGFR (Y845) were detected in the IP and SCC parts of IP-SCC-2. (G,H): SCC without HPV infection (SNSCC-12). There was intense EGFR staining (G) but none for p-EGFR (Y845) (H). Bar, 100 µm.
