Fig. 4From: Primary gross tumor volume is prognostic and suggests treatment in upper esophageal cancerSurvival rates of patients with GTV-p ≥ 30 cm3. Without PSM among S, RT, and S + RT groups: (A) OS. (B) PFS. With PSM between R group and R + S group: (C) OS. (D) PFSBack to article page