803930.fig.004a
(a)
803930.fig.004b
(b)
803930.fig.004c
(c)
803930.fig.004d
(d)
Figure 4: (a) Dissection of pia mater and blood vessels, (b) dissection degree, (c) 5 DIV (HE staining, bar = 50 um), and (d) 14 DIV (bar = 20 um).