Fig. 2From: Effectiveness of salvage radiotherapy for superficial esophageal Cancer after non-curative endoscopic resectionOS rate according to treatment strategy. The 5-year OS rates were 83% in the CRT group (95% CI, 68–98%) and 68% in the RT alone group (95% CI, 43–94%). OS: overall survival; CRT, chemoradiotherapy; CI: confidence interval; RT: radiotherapyBack to article page