Figure 3. Identification of survival-related differentially expressed ERGs. (A) Volcano plot showing survival-related ERGs. P values <0.05 are considered to be statistically significant. (B) The expression of epigenetic-related prognostic genes between LUAD and normal tissues in TCGA database. (C) The correlation network of candidate genes. The correlation coefficients are represented by different colors. (D) Mutation frequency of candidate genes based on the cBioportal database.