GLRA3 and rheumatoid arthritis: We noticed that regulation of epithelial cell differentiation, excitatory extracellular ligand-gated ion channel activity, acetylcholine-gated cation-selective channel activity, and acetylcholine receptor activity in the GO term molecular function (Figure 2(c)) and rheumatoid arthritis in KEGG (Figure 2(e)) were shared in the abovementioned analysis, suggesting that these pathways play an essential role in LCSG-induced LUAD prognosis.