Figure 3From: Primary Tumor Vascularity, HIF-1α and VEGF expression in vulvar squamous cell carcinomas: their relationships with clinicopathological characteristics and prognostic impact Survival curves using the Kaplan-Meier method. The Kaplan-Meier curve of disease-specific survival in relation to the HIF-1α showed that patients whose tumors expressed low levels of HIF-1α had a worse prognosis than those with high levels.Back to article page