Fig. 1From: Residual lymph node status is an independent prognostic factor in esophageal squamous cell Carcinoma with pathologic T0 after preoperative radiotherapy a overall survival (OS) curves of patients with primary tumor pCR. b Progression-free survival (PFS) curves of patients with primary tumor pCR. Patients with ypT0N1 disease have a significantly lower OS and PFS ((P = 0.004 and P = 0.003 respectively)Back to article page