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Photomicrographs of Nissl stained cells in the dorsal caudate (top left), medial caudate (top right), putamen (bottom left), and nucleus accumbens (bottom right) regions. Neurons (black arrow) were distinguished from oligodendrocytes (white arrowheads) and other glia (white arrows) by their large size and distinctively stained nucleolus. Image taken at 100x (1.4 NA). Scale bar = 10 μm.
