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. 2018 Nov 13;8:16716. doi: 10.1038/s41598-018-34699-8

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Distribution of animals into four groups. (A) nerve guide; (B) nerve guide with autologous cell transplant from stromal vascular fraction; (C) hollow silicone tube, or (D) autologous nerve graft. PCL denotes the part of the study in which PCL guides were used, while PLLA denotes the part of the study where PLLA guides were used, even though such guides where not used when it came to the respective autologous nerve graft and hollow tube groups. (Illustration by Peregrin Frost).