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Impact of perineural invasion (PNI) on the efficacy of adjuvant chemotherapy in the Jiangsu Province Hospital cohort. (A–D) Overall survival (OS) and disease-free survival (DFS) in patients with resected gastric cancer according to PNI and treatment status. (E) Multivariate analyses of variables associated with OS and DFS, selected for their prognostic significance established in univariate analysis. CT, chemotherapy.
