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Effect of human papillomavirus (HPV) status and p53 expression on 5-year overall survival. (A) Cumulative survival in the HPV DNA-positive group and the HPV DNA-negative groups. (B) Cumulative survival in patients with absent-intermediary/low (0–60%) and high (90–100%) p53 expression. Notably, no patients showed 61–89% p53 expression.
