Figure 4
Survival curves in relation to 7 th UICC/TNM node stage. Prognosis worsened with increasing N stage (χ2 = 128.78, P < 0.01).
Figure 4 | BMC Cancer
Survival curves in relation to 7 th UICC/TNM node stage. Prognosis worsened with increasing N stage (χ2 = 128.78, P < 0.01).