Identification of EC subpopulations in integrated Control samples. (A) UMAP plot of integrated Control samples. Colours represent annotated cell clusters and individual sample, respectively. (B) Proportion of EC subpopulation in individual Control samples. (C) Heatmap of the top 10 marker gene expression in a downsampling of 100 cells from each cluster. (D) UMAP plot of representative markers expression in the different clusters.