Fig. 9From: Combining mesenchymal stem cell sheets with platelet-rich plasma gel/calcium phosphate particles: a novel strategy to promote bone regenerationExtent of bone formation was expressed as a percentage of bone tissue area within the original cortical bone defect area. Error bars represent means ± SD (n = 5); *P <0.05; #CaP/BMSC sheet vs CaP/PRP, CaP, BMSCs/PRP, Control, P <0.05; $CaP/PRP/BMSC sheet vs other five groups, P <0.05Back to article page