Survival analysis of the association between the expression levels of hub genes and disease-free survival time in lung adenocarcinoma (based on The Cancer Genome Atlas data in Gene Expression Profiling Interactive Analysis). (A) CA4. (B) PECAM1. (C) DNAJB4. (D) AGER. (E) GIMAP6. (F) C10orf54. (G) DOCK4. (H) GOLM1. (I) PAFAH1B3. Red line indicates the samples with highly expressed genes, and blue line shows the samples with lowly expressed gene. P≤0.05 was regarded as statistically significant. HR, hazard ratio; CA4, carbonic anhydrase 4; PECAM1, platelet and endothelial cell adhesion molecule 1; DNAJB4, DnaJ member B4; AGER, advanced glycosylation end-product specific receptor; GIMAP6, GTPase, IMAP family member 6; C10orf54, chromosome 10 open reading frame 54; DOCK4, dedicator of cytokinesis 4; GOLM1, Golgi membrane protein 1; PAFAH1B3, platelet activating factor acetylhydrolase 1b catalytic subunit 3; TPM, transcripts per million.