The lung adenocarcinoma patients were divided into high-risk and low-risk groups using the risk score Riskscore = (-4e-04)*DLX5 + (-0.0772)*FEZF1 + (-0.0933)*H2BC9 + (0.0637)*EREG + (0.0298)*SLC34A2 (Figure 5C), and their survival status was displayed in Figure 5D. The gene discussed is H2BC9; the disease is lung adenocarcinoma.