By analyzing the data of 424 cases of HCC in the TCGA database, the expression levels of 6 ferroptosis-related lncRNAs are shown in Fig. 4A. Through the prognostic analysis of three molecules in the Gepia database, we found that NRAV was significant for OS (Fig. 4B), while DANCR, MKLN1-AS1, and ZFPM2-AS1 showed little difference (Fig. S2A-C), and no difference between AL137186.2 and LNCSRLR. So we selected NRAVs with the most significant difference in HCC prognosis for further validation. Here, MKLN1 is linked to hepatocellular carcinoma.