After that, univariate survival analysis found 26 prognosis-related lncRNAs, with all of them indicating higher risk of survival (all P<0.001, HR>1, Table 1), including AL158166.1, SNHG3, LINC01224, AL442125.2, DUXAP8, NRAV, etc. In addition, differential expression identified 14 lncRNAs, such as SNHG3, AC026256.1, AL031985.3, SNHG4, NRAV, etc., all high in tumor tissues and heatmap visualized their expressions (Figures 1C, D). The gene discussed is SNHG4; the disease is neoplasm.