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Histological images and quantitative analysis of new bone after scaffold implantation. a. H&E staining image of decalcified tissue section under a 100 × microscope; purple arrows showed osteoblasts; blue arrows showed new bone tissue. Scale bar, 100 μm. b. Sirius red staining images and quantitative analysis of decalcified tissue section under a 200 × microscope; red arrows showed new fibrous tissue; black arrows showed scaffold. Scale bar, 50 μm.
