EPCAM and neoplasm: Using the KPCY tumor-derived cell lines PD798 (epithelial characteristics with high ECAD expression) and PD483 (mesenchymal characteristics with low ECAD and EPCAM expression) (Supplementary Fig. S2), and comparing cells processed by FACS-only to those that were also pre-enriched, no difference in the mean fluorescence intensity of the cell-surface proteins could be detected (Fig. 3b).