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Kaplan–Meier curves of DFS and OS.
Notes: (A) DFS of all patients with NSCLC, (B) OS of all patients with NSCLC, (C) OS according to lymph node metastasis in patients with NSCLC, and (D) OS according to stage in patients with NSCLC.
Abbreviations: DFS, disease-free survival; OS, overall survival.
