Fig. 5From: Prognostic value of the extent of lymphadenectomy for esophageal cancer-specific survival among T1 patientsEsophageal CSS curve for different nLNNs based on the two grouping methods. a: ≤4, 5–8, 9–12, 13–20 and ≥ 21; b: < 13 and ≥ 13Back to article page