TABLE I.

Results of EpCAM enrichment of approximately 100 MCF7s spiked into 1 ml whole blood.

Blood donor sample nos.	MCF7 events		MCF7 events (Control)
Expected	Measured	Expected	Measured
1	30	11	0	0
2	32	33	0	3
3	34	45	0	1
4	33	32	0	1
5	24	22	0	0