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. 2014 Mar 4;9:46. doi: 10.1186/1746-1596-9-46

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Copyright © 2014 Ebaid; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Skin sections (x 400) stained with anti-PCNA antibodies to show the proliferation activity of the epidermal cells (the proliferating cells are stained with a red colour). Histograms show the number of proliferating cells at the second, fourth and eighth days after wounding for the different groups. Values shown are means ± SD. *shows the significance in comparison with the control group. # shows the significance in comparison with the older group.