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. 2015 Apr 3;7(3):161–168. doi: 10.1038/ijos.2015.5

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Copyright © 2015 West China School of Stomatology

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Immunohistochemical staining of Ki-67 in the tumour and adjacent tissues (×400). T, centre of the tumour; P1, 0–0.5 cm to the tumour boundary; P2, 0.5–1 cm to the tumour boundary; P3, 1–1.5 cm to the tumour boundary; P4, 1.5–2 cm to the tumour boundary; N, normal mucosa.