Fig. 4From: The combinatory effect of sinusoidal electromagnetic field and VEGF promotes osteogenesis and angiogenesis of mesenchymal stem cell-laden PCL/HA implants in a rat subcritical cranial defectThe expression of VEGFR1 (green) and OCN (red) in rBMSCs after 7 days stimulation of VEGF and SEMF were observed by immunofluorescence staining (a, b). The nuclei were stained with DAPI (blue). Scale bar = 100 μmBack to article page