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. 2009 Jul 20;20(3):730–742. doi: 10.1093/cercor/bhp138

Figure 1.

Figure 1.

An anterior (A; 7.2 mm from the frontal pole) to posterior (F; 12 mm from the frontal pole) coronal series of a chimpanzee right hemisphere (C0423) stained for Nissl substance showing the region that contains areas 44 and 45. Abbreviations: ce = central fissure; fos = fronto-orbital sulcus; ifs = inferior frontal sulcus; lf = lateral fissure; los = lateral orbital sulcus; mfs = middle frontal sulcus; pci = inferior precentral sulcus; and sfs = superior frontal sulcus. Scale bar = 10 mm.