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Kaplan–Meier survival curves in the NPC patients according to POSTN immunoexpression.
Note: POSTN immunohistochemical overexpression is a strong prognosticator of worse disease-specific survival (A), distant metastasis-free survival (B), and local recurrence-free survival (C).
Abbreviations: NPC, nasopharyngeal carcinoma; POSTN, periostin.
