Fig. 3From: Prognostic significance of 4R lymph node dissection in patients with right primary non-small cell lung cancerKaplan–Meier curves for DFS (A) and OS (B) between propensity-matched N2 patients with or without station 4R dissection. C OS of patients without or with station 4R metastasis. D OS of patients with single-station 4R or station 7 metastasis. E OS of patients with adjuvant chemotherapy and station 4R dissection (S4RD+ AC) or not (S4RD− AC)Back to article page