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Effect of SWP on the histopathological changes in the arthritic knee joints. (a) H&E staining of knee joints in each group. (b) Safranin-O staining of knee joints in each group. (c) Comparison of Mankin scores of different groups. ∗P<0.05, compared to control group. #P<0.05, compared to model group. (d) Hypoxia assessments of the knee synovial membrane in each group.
