In addition, another lncRNA, DiGeorge syndrome critical region gene 9 (DGCR9, ENSG00000273032), one of the 4 HCC prognosis-related lncRNAs in our study, is also one lncRNA of a 9-lncRNA risk score system for the prognostic prediction of patients with HBV-positive HCC 44. The gene discussed is DGCR5; the disease is hepatocellular carcinoma.