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(A) Representative images of Col2 protein immunohistochemical staining. (B) Representative images of aggrecan protein immunohistochemical staining. (C) Quantification of relative Col2 expression. (D) Quantification of relative aggrecan expression (#, $, and * indicate P < 0.05 in comparison with the sham, RAPA@Lipo@HM, and PBS groups, respectively).
