Figure 4From: Clinical significance in the number of involved lymph nodes in patients that underwent surgery for pathological stage III-N2 non-small cell lung cancer Comparison of the overall survival between p-N1 patients and p-N2 patients with 2 or less than 2 involved lymph nodes. There was no significant difference between the patients with N1 disease and the patients with 2 or less than 2 lymph nodes metastasis.Back to article page