The correlation analysis of the expression of GSTA2 and the identified ROS-associated genes using the LIHC database in the GEPIA web server revealed that the expression level of GSTA2 was significantly correlated with ALB, TPO, APOE, MBL2, and FTH1 in the tumor tissues (Supplementary Fig. S2). The gene discussed is APOE; the disease is neoplasm.