Fig. 3From: Association between number of dissected lymph nodes and survival in stage IA non-small cell lung cancer: a propensity score matching analysisKaplan–Meier curves showing CSS for patients with NLNs ≤ 5 and > 5 who underwent wedge resection (a), segmental resection (b), lobectomy (c), and pneumonectomy (d)Back to article page