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CCN5 is expressed in E4.5 embryos (implanted blastocysts). 5 μm frozen sagittal sections of embryo were processed as described in Materials and Methods. BC = Blastocoel; D = Decidua; E = Endometrium; ICM = Inner Cell Mass. Scale Bar = 50 μm. Brown staining indicates CCN5 immunoreactivity. Nuclei are visualized by hematoxylin (blue) staining
