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Table 4 Chi-square Test of Ck 5–6 and Ck 14

From: Cytokeratin 8/18 expression indicates a poor prognosis in squamous cell carcinomas of the oral cavity

Prognosticator

Node status P value

Tumour size P value

Ck 5–6

0.045

0.026

Ck 14

0.021

0.037