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Cavity and bleeding at 1 week and 3 weeks after mild SCI. Low (top) and high (bottom) magnification images of HE-stained longitudinal sections of the spinal cord from sham-operated mice and mice at 1 week and 3 weeks after a mild SCI. An arrow, arrowheads and asterisks indicate a neuron, red blood cells and cavities, respectively. Sections from 4 mice for each group were stained. Scale bars, 200 μm and 50 μm in top and bottom panels, respectively.
