Figure 1. The study flowchart. Abbreviations: AUC: area under the receiver operating characteristic curve; C1: cluster 1; C2: cluster 2; GC: gastric cancer; GSEA: gene set enrichment analysis; GSVA: gene set variation analysis; ssGSEA: single-sample gene set enrichment analysis; STEM: short time-series expression miner; TCGA: The Cancer Genome Atlas; WGCNA: weighted gene co-expression network analysis.