Differential expression of key genes in the three scRNAseq UM data sets. (A) Dot plot shows scaled expression of selected genes (see Materials and methods) for each cluster colored by average expression in each cluster. Dot size represents the percentage of cells in each cluster with more than one read of the corresponding gene. (B) Hierarchical clustering of the different clusters from patients coh4_84, coh4_56, and coh4_79.