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A, Immunohistochemical staining of COLI and calculated COLI-expressed area B, MMP-9 and calculated MMP-9-expressed area and C, IL-1β and calculated IL-1β-expressed area in tendon tissue from ovariectomized rats after cyclic stretching. Scale bars represent 100 μm in ×200 magnifications. Values are SEM (n = 3). *p<0.05, **p<0.01.
