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. 2017 Nov 25;17:792. doi: 10.1186/s12885-017-3789-0

Fig. 2.

Fig. 2

a Poorly differentiated HPV-associated SCC of tonsil (H&E), in this area beneath an intact surface, (b) Intense staining of nuclei and cytoplasm for p16 in the same tumour (20X magnification of original image)