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Kaplan–Meier analysis of the DFS, OS, and LRFS.
Note: Positive expression of PD-L1 in TCs was significantly associated with LRFS (B), and no significant difference was found between PD-L1 expression and DFS or OS (A and C).
Abbreviations: DFS, disease-free survival; OS, overall survival; PD-L1, programmed death-ligand 1; LRFS, local recurrence-free survival; programmed death-ligand 1; TC, tumor cell.
