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. 2023 Nov 21;11:rbad104. doi: 10.1093/rb/rbad104

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© The Author(s) 2023. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 7. — Histological evaluation on samples of different groups at 8 weeks in vivo. (A) H&E staining. (B) COL II immunohistochemistry staining. (C) COL I immunohistochemistry staining. (D) Safranin O-Fast Green staining. (The scale of a 20× enlarged image was 600 μm; the scale of a 200× enlarged image was 100 μm.) (E) H&E staining, COL II immunohistochemistry staining, COL I immunohistochemistry staining, Safranin O-Fast Green staining of the normal cartilage (the scale was 100 μm).