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. 2016 Apr 14;18:20. doi: 10.1186/s12968-016-0237-2

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© Eikendal et al. 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. 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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Fig. 5 — Sample size estimates based on pre-specified differences in aortic wall characteristics between groups. Overview of required sample sizes to detect a mean difference between groups of 15, 12, 10, 7 and 5 % in mean aortic lumen area (a), mean total aortic vessel area (b), mean aortic wall area (c), mean aortic wall thickness (d), maximum aortic wall thickness (e) and mean aortic WA/TVA ratio (f)