Table 1. Comparison between expected and counted numbers of FND-labeled HeLa cells passing through a microchannel at different cell concentrations and flow rates in human blood for 60 s.

Cell concentration (104 cells/mL)	Pumping rate (mL/h)	Expected number	Counted number
0.83	0.02	3	4
0.83	0.05	7	8
0.83	0.10	14	1
17	0.01	28	24
17	0.10	280	40
33	0.01	55	65
170	0.01	280	248