Figure 4. EVPOME fabricated by size-sorted cells from unsorted passage 8 (hematoxylin-eosin staining). (A) Large cells show no evidence of an intact epithelial cell layer. (B) Medium cells show a thin monolayer of cells. (C) Small cells are the only ones that show an intact stratified epithelial layer of cells similar to D, an EVPOME produced by unsorted passage 2 cells.