The Kaplan–Meier plotter analysis of the top deregulated TFs revealed a statistically significant association between the expression levels of the top five TFs deregulated also in PAH (BZW2, FOXM1, SOX4, TAL1, and ZBTB16) and the top two TFs deregulated only in lung cancer (KLF4 and SOX17), with the survival of lung cancer patients (Figure 9). The gene discussed is KLF4; the disease is lung cancer.