Fig. 2From: Safety and efficacy analysis of chemoradiotherapy/radiotherapy combined with nimotuzumab for treating unresectable oesophageal squamous cell carcinoma in elderly patients: a retrospective analysisOS curves of the NRT and NCRT groups. NRT, nimotuzumab + radiotherapy; NCRT, nimotuzumab + chemo-radiotherapy; OS, overall survivalBack to article page