Fig. 1From: Additional radiotherapy following endoscopic submucosal dissection for T1a-MM/T1b-SM esophageal squamous cell carcinoma improves locoregional controlKaplan-Meier survival curves for locoregional control (LRC). LRC after endoscopic submucosal dissection (ESD) with or without additional radiotherapy (RT) for all study patients with esophageal squamous cell cancer stratified by whether or not they received RT (a) and survival curves of patients with ESD-related mucosal defects ≥ 3/4 of the esophageal circumference with or without additional RT (b)Back to article page