Figure 2. Molecular subgroup construction. (A) Prognosis related ARLs by univariate Cox regression. (B, C) Identification of two molecular subgroups. (D) PCA of subgroups (E) Kaplan-Meier survival analysis in C1, C2. (F) TMB levels of LUAD patients in C1 and C2. (G) Tumor immune microenvironment of subgroups.