LUAD	Lung adenocarcinoma
DEGs	Differentially expressed genes
TNM	Tumor, node, and metastases
GEO	Gene Expression Omnibus
TCGA	The Cancer Genome Atlas
PPI	Protein-protein interaction
ROC	Receiver operating characteristic curve
STRING	Search Tool for the Retrieval of Interacting Genes database
MCODE	Molecularcomplex detection
OS	Overall survival
LASSO	Least absolute shrinkage and selection operator
GEPIA	Gene Expression Profiling Interactive Analysis
HPA	Human Protein Atlas
GO	Gene Ontology
KEGG	Kyoto Encyclopedia of Genes and Genomes