LINC01224 and hepatocellular carcinoma: The final 6 lncRNAs were utilized to construct the risk model for ERS-associated lncRNAs and draw the forest plot(Fig 2C).When we evaluated the expression levels of the above six ERS-associated lncRNAs in HCC tumor and normal samples, we found that the above 6 ERS-associated lncRNAs expressed highly in HCC tumor samples(Fig 2D).The above 6 ERS-associated lncRNAs are MKLN1-AS,LINC01224, AL590705.3,AC008622.2,AC145207.5 and AC026412.3.The expression level and coefficient of the above six lncRNAs were used to calculate the risk score of each HCC patient, use the equation below.