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. 2017 Jan 20;13(3):22. doi: 10.1007/s11306-016-1156-9

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© The Author(s) 2017

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, 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.

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Fig. 5 — Multivariate analysis of control and LS retinas: a first principal plane (axis 1 vs. axis 2) of the PCA scatter plot showing no outlier and no separation between controls (black circles) and retinas 1 (LS_1) or 7 (LS_7) d after light treatment (blue and red circles, respectively), b OPLS-DA scatter plot showing a clear discrimination between groups according to light treatment along the predictive components tp1 and tp2