We observed that high KLF4 levels correlated with better relapse-free survival (Figure 5A,B) and better overall survival (Figure 5C,D) in two specific breast cancer datasets—GSE42568 (n = 104 breast cancer biopsies) [69] and GSE3494 (n = 251 primary breast tumors) [70]. The gene discussed is KLF4; the disease is breast cancer.