Other analysis about RFS of BC patients who received neoadjuvant chemotherapy also revealed that high HIF1α expression was significantly associated with bad relapse-free survival (RFS) (HR = 1.49, 95% CI = 1.34–1.66, and p < 0.001), which is based on the website of Kaplan–Meier, as shown in Figure 3D. This evidence concerns the gene HIF1A and breast cancer.