Fig. 9From: Enhancement of sciatic nerve regeneration with dual delivery of vascular endothelial growth factor and nerve growth factor genesTB staining of regenerated peripheral nerves at 4 weeks after surgery in a, d VEGF group; b, e NGF group; c, f VEGF + NGF group. The scale bar is a–c 200 μm; d–f 50 μm respectivelyBack to article page