The normal breast contains 13 epithelial clusters
(A) Integrated analysis of single cells of the normal breast biopsies of five healthy donors. Epithelial cells dominate among cell types.
(B) Subclustering of epithelial cell types using CD49f/EpCAM as well as NFIB, TP63, EHF, ELF5, ESR1, and FOXA1 expression patterns.
(C) Representation of various cell types in each sample. Subclusters in individual sample are shown in Figure S1A.
(D) Hierarchical clustering of top cluster-enriched genes.