When analyzing the spatial distribution of each subtype of lymphocytes at a distance of 25 and 50 μm from the tumor clusters, we observed a significantly higher percentage of CD3 + CD8 + FOXP3‐ lymphocytes in the microenvironment of the tumors in post‐operative samples for the luminal and TNBC subtypes and a significantly higher percentage of CD3 + CD8‐FOXP3‐ for the TNBC subtypes (Figs S10 and S11). The gene discussed is CD8A; the disease is neoplasm.