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. 2013 Jun 7;8(6):e65472. doi: 10.1371/journal.pone.0065472

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© 2013 Abu El-Asrar et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Negative control slide that was treated with an irrelevant antibody showing no labeling (A) (original magnification×40). Immunohistochemical staining for CD34 showing blood vessels positive for CD34 (B) (original magnification×40). Immunohistochemical staining for α-smooth muscle actin showing immunoreactivity in spindle-shaped myofibroblasts (C) (original magnification×100). Immunohistochemical staining for neurotrophin-3 showing vascular endothelial cells (arrows) (D) and stromal cells (arrowheads) (E) expressing immunoreactivity for neurotrophin-3 (original magnification×100).