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Coronal sections showing the dorsal (PORd) and ventral (PORv) postrhinal cortex and adjacent cortical areas at 3 rostrocaudal levels. Adjacent sections were stained for Nissl material (A, D, and G), heavy metals using Timm’s method (B, E, and H), myelinated fibers (C and I), and the enzyme acetycholinesterase (F). Other abbreviations: ab, angular bundle; ENTl, lateral entorhinal area; ENTm, medial entorhinal area; TEA, temporal association area.
