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. 2018 Jun 11;13:21. doi: 10.1186/s13027-018-0193-6

Fig. 1.

Fig. 1

HPV-related oropharyngeal squamous cell carcinoma (a & b; H&E stain) showing high levels of p16 expression by immunohistochemistry (c) and evidence of high risk HPV DNA by in situ hybridisation (d)