Figure 1From: Risk factors for locoregional recurrence in patients with resected N1 non-small cell lung cancer: a retrospective study to identify patterns of failure and implications for adjuvant radiotherapySurvival rates of patients with resected N1 non–small cell lung cancer. The Kaplan-Meier curves show the decline in overall survival (OS) and disease-free survival (DFS) rates following surgery. The follow-up periods were 1.4–81.8 months (median, 53.8 months).Back to article page