The fourth edition of the World Health Organization Classification of Tumours of the Head and Neck described a highly significant difference in the risk of malignant progression between low- and high-grade dysplasia, and high-grade dysplasia and CIS are associated with a higher risk of invasion 16 .
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Immunohistochemistry of YAP and dNp63 and survival analysis of patients bearing precancerous lesion and oral squamous cell carcinoma.
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