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Architectonic reconstruction (a) and low magnification photomicrographs stained neuronal nuclear marker (NeuN, a), choline acetyltransferase (ChAT, c) and calbindin (d) of coronal sections through the brachial region of the tree pangolin spinal cord. In all images, dorsal to the top and medial to the left and correspond to level 4 depicted in Figures 2 and 3. Scale bar in (d) = 500 μm and applies to all images. See list for abbreviations
