Fig. 2From: Population-based analysis of curative therapies in stage II non-small cell lung cancer: the role of radiotherapy in medically inoperable patientsKaplan-Meier overall survival curves in the case-control population, comparing surgery (n = 106) matched by age (+/− 5 years), sex, ECOG (0–1 or 2), and smoking status (never, former, current) to radiotherapy (n = 106) m, months; RT, radiotherapyBack to article page