Fig. 4

Kaplan–Meier survival curves of patients with pretreatment EBV DNA ≥ 4000 copies/mL in the matched cohort. a Overall survival; b distant metastasis-free survival; c local recurrence-free survival; d Nodal recurrence-free survival
Kaplan–Meier survival curves of patients with pretreatment EBV DNA ≥ 4000 copies/mL in the matched cohort. a Overall survival; b distant metastasis-free survival; c local recurrence-free survival; d Nodal recurrence-free survival