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. 2021 Jan 1;46(1):174–176. doi: 10.1111/ced.14402

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© 2021 British Association of Dermatologists

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(a) Ulcerations in the right side of buccal mucosa; (b) multiple nuclei with herpes simplex virus 1/2 antibodies after immunohistochemical staining (original magnification × 40).