Objective We retrospectively analysed the survival rate of 50 patients who were diagnosedwith stage N2-Ⅲa NSCLC and treated with surgery. We explored their prognostic factors. Methods Clinical dataof 50 cases with N2-Ⅲa NSCLC admitted from January 2010 to January 2016 was retrospectively reviewed. Weretrospectively analysed the impact of the clinical data on survival rate of patients with stage N2-Ⅲa. Afterwards,we compared the survival rate between patients with different N2 status. Results The 5-year surv...