Figure 1From: Clinicopathologic and outcome features of superficial high-grade and deep low-grade squamous cell carcinomas of the penisKaplan–Meier survival curves for final nodal status and cancer-related death by type of tumor. No significant differences were found in the survival curves. Follow-up in months is depicted in the x-axes, while the y-axes depict survival functions. P values were estimated using the log-rank (Mantel-Cox) test.Back to article page