Fig. 4

Tumor microenvironment infiltration of KGRCs. A-B Boxplot reflects 23 immune cells infiltration in three KGRCs using ssGSEA algorithm in TCGA-STAD cohort. Statistical difference is identified by Kruskal–Wallis H test, * indicating P value < 0.05; ** indicating P value < 0.01; *** indicating P value < 0.001. C-E ESTIMATE analyses of three KGRCs. Statistical difference is identified by Kruskal–Wallis H test, * indicating P value < 0.05; ** indicating P value < 0.01; *** indicating P value < 0.001