The clustering revealed distinct cell populations, including B cells, CD8+ NKT-like cells, dendritic cells, endothelial cells, hematopoietic stem/progenitor cells (HSC/MPP), ISG-expressing immune cells, macrophages, mast cells, monocytes, T cells and tumor subtypes (luminal A, luminal B, HER2+ and TNBC). Here, ERBB2 is linked to neoplasm.