Fig. 13From: Enhancement of sciatic nerve regeneration with dual delivery of vascular endothelial growth factor and nerve growth factor genesImmunofluorescence staining of regenerated peripheral nerves at 4 weeks after surgery in a–d VEGF group; e–h NGF group; i–l VEGF + NGF group. a, e, i DAPI staining (blue); b, f, j BrdU labeling (green); c, g, k CD34 staining (red); d, h, l merge. The scale bar is 100 μmBack to article page