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X-ray images of the knee joints of rabbits in each group after 8 weeks of bilobalide treatment. Arrows depict the knee joint's articular cartilage damage and shrinken joint space. (A) X-ray images of the knee in each group. (B) KL classification score for the knee in each group. All data are presented as mean ± SD (n = 3). * p < 0.05 and ** p < 0.01 vs. control group; # p < 0.05 and ## p < 0.01 vs. OA group.
