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a. Kaplan-Meier curves of recurrence-free survival according to HPV-mRNA status of sentinel lymph nodes; log rank test p = 0.002 (primary analysis population n = 171) and b. Kaplan-Meier curves of recurrence-free survival according HPV-mRNA status of sentinel lymph nodes stratified by tumor size; log rank test for HPV-mRNA adjusted for tumor size p = 0.027 (primary analysis population n = 171).
