Figure 4.

Kaplan-Meier plot for breast cancer patients illustrating metastasis-free survival according to hypoxia inducible factor 1α (HIF-1α)^TAG mRNA levels in breast cancer patients (n = 53). Patients with high expression levels of HIF-1α^TAG mRNA (median cut-off = 9.95) had a significantly higher risk of relapse (P = 0.01).