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Histological images in the epiphyseal plate of the right femur. The histological staining in the sham group (A), the OVX group (B), the OVX+vardenafil group (C), the OVX+tadalafil group (D), the OVX+udenafil group (E). The histological staining in the OVX+vardenafil, OVX+tadalafil and OVX+udenafil groups were more normal than that in the OVX group. Scale bar 200 µm (A-E)
