Figure 8. Identification of the hub genes in lung adenocarcinoma. (A) Survival analysis of seven candidate hub genes in lung adenocarcinoma. (B) Expression level analysis of seven candidate hub genes in lung adenocarcinoma. (C) The association of the hub gene expression levels and the levels of proliferation, invasion, metastasis, cell cycle and EMT in lung adenocarcinoma. * represents P < 0.05, ** represents P < 0.01, *** represents P < 0.001.