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. 2017 Jan 17;16:10. doi: 10.1186/s12944-016-0399-9

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© The Author(s). 2017

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. 3 — Principal component analysis (PCA) loadings biplot of intestinal fatty acids. a Biplot PCA of n-3 group, PC1 = 51.5%, PC2 = 31.7%; b biplot PCA of n-6 group, PC1 = 50.2%, PC2 = 23.7%. Black triangles: fatty acids; red squares: intestinal segments