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Architectonic characteristics of subdivisions of frontal and cingulate cortices in squirrel 06-34. Cortical areas are shown on a medial view of the left hemisphere in panel A. The blue horizontal line across the brain indicates the location of the brain sections illustrated in panels B–F. Short horizontal lines on panels B–F show the extent of the cortical layers. Scale bar on the brain (panel A) = 5mm. Scale bar for brain sections (panel F) = 2mm.
