Fig. 10From: Dual growth factor-modified microspheres nesting human-derived umbilical cord mesenchymal stem cells for bone regenerationa In vitro tube formation by HUVECs conditioned with microspheres. Scale bar: 100 μm. b-d Quantification of total segment length, number of nodes and number of segments via the angiogenesis tool. One-way ANOVA with a multiple comparison test was used for statistical analysis (**p < 0.01)Back to article page