310406.fig.004a
(a)
310406.fig.004b
(b)
310406.fig.004c
(c)
Figure 4: (a) Normal vein (HE × 100). (b) 14 d after graft in transfection group, intimal hyperplasia reached a peak (HE × 100). (c) 14 d after graft in control group, intimal hyperplasia reached a peak (HE × 100).