FACS analysis of CD31, ICAM-2, endoglin, CD146, KDR, CD144, CD45, FGFR-2, Flt-1, and NOSIII in EPDCs, HUVECs, and HBMECs at 40 days of culture. Plots show isotype control IgG staining (white histograms) versus specific antibody staining (gray histograms). Each analysis shown is a representative profile.