ITGBL1 and gastric cancer: As shown in Figure S2A, the patients with GC were categorized into two groups, namely a high expression group (n = 187) and a low expression group (n = 188), based on the median relative expression of ITGBL1 mRNA, with a cut‐off value of 0.92166570, and differential expression analysis was performed to identify differentially expressed genes, with 237 differentially expressed genes identified.