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Photomicrographs of hematoxylin and eosin (H&E) staining and tracer coronal sections at 0.26 mm to bregma. H&E (A, C) and tracer specific (B, D) immunostains of tissue sections from animals injected with biotin-dextran amine (A, B) and horseradish peroxidase (C, D) shown at 2×magnification across all time points.
