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(A) The histological images of repaired tissues 12 weeks after implantation; (B) the histological images of repaired tissues 24 weeks after implantation (H&E, safranin O/fast green, and toluidine blue staining). The length of the white vertical line is 1 mm, which is used to measure the thickness of the cartilage. The white asterisks indicate the remnant scaffold materials. H&E = haematoxylin and eosin.
