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. 2017 Apr 26;7:1173. doi: 10.1038/s41598-017-01214-4

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© The Author(s) 2017

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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Geometries and stenting of Mg-based helical stent for vascular bioreactor tests. (a) Optical image of 2D Mg-based ribbon before coiling to form the device, (b) In vitro stent testing: optical image of helical stent for in vitro test (b1), inserted stent in artificial vessel (b2), and expanded stent in vessel (b3), (c) Ex vivo stent testing: optical image of helical stent for ex vivo (c1), optical image of the inserted stent in porcine artery (c2), and expanded stent in artery (c3).