Part 1
(blood cells were removed before ESF exposure)
Part 2
(blood cells were removed after ESF exposure)
Open
(samples were placed in the open tubes)
Closed
(samples were placed in the closed tubes)
Open
(samples were placed in the open tubes)
Closed
(samples were placed in the closed tubes)
Control ESF Control ESF Control ESF Control     ESF
Table 1: Experimental design.