Additionally, we used the Kaplan-Meier method to plot the survival curves and found that ACC (P = 0.003), BLCA (P = 0.027), KIRC (P = 0.001), and LIHC (P = 0.009) patients with high MMP-9 levels had a poor prognosis (Figures 3(b)–3(e)). The gene discussed is MMP9; the disease is adrenal cortex carcinoma.