Pearson correlation tests were used to assess the coexpression of the five lncRNAs and mRNAs (|cor| > 0.3). Only mRNAs with differential expression in coexpression results were selected for further enrichment analysis to reduce false positives. To reveal the function of the five lncRNAs, R software was used for enrichment analysis of Gene Ontology (GO) terms and KEGG pathways 10. Adj. P<0.05 was considered statistically significant. In addition, we divided the constructed model into high-risk and low-risk groups and carried out gene set enrichment analysis (GSEA) to reveal signal transduction (http://software.broadinstitute.org/gsea/).
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