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Cortical region of the control group slide Hematoxylin and eosin staining. Magnification 20x. (a) Overview photo of all layers, (b) layers one to three—close view, (c) layers four to six—close view. (1) Perivascular edema, (2) pericellular edema, (3) collapsed vessel, (4) swollen neuron, (5) evanescent cell, (6) dark neuron.
