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. 2016 Apr 7;44(11):3319–3334. doi: 10.1007/s10439-016-1601-y

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Immunohistochemical staining for (a, d, g, j) Ki67, (b, e, h, k) CD68, (c, f, i, l) CD163 for TPU and ePTFE grafts after 1 week and 1 month implantation. Black arrows indicate graft walls, black scale bar: 200 µm. H&E stained of the cross-section of the (m) TPU and (n) ePTFE grafts after 1 month implantation, red arrows point out the luminal endothelial layer, red scale bar: 50 μm.