Figure 1

Comparison of survival curves according to the pN and NR stages (both p < 0.001). (a) Survival curves of patients with various pN stages. (b) Survival curves of patients with various NR stages. NR lymph node metastatic ratio.
Comparison of survival curves according to the pN and NR stages (both p < 0.001). (a) Survival curves of patients with various pN stages. (b) Survival curves of patients with various NR stages. NR lymph node metastatic ratio.