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Goldner’s trichrome staining of the regenerated bone. (A) Goldner’s trichrome staining of newly regenerated bone. White arrows indicate the osteoid formation, and black arrows indicate the mineralized bone formation. (B–C) Quantification of mineralized bone and osteoid formation in the bone-healing interface from the defects treated with the various GelMA-based hydrogels. *P < 0.05 indicates statistical difference.
