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. 2019 May 8;14:18. doi: 10.1186/s13020-019-0240-2

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© The Author(s) 2019

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. 4 — PLS-DA score plots (left panels), their corresponding coefficient loading plots (middle panels) and volcano plots (right panels) derived from serum NMR data. Leu, leucine; Val, valine; Lac, lactate; Asp, aspartate; Orn, ornithine; 3-HB, 3-hydroxybutyrate; MH, 1-methylhistidine; Act, acetone; α-Glc; α-glucose; Ala, alanine; Bet, betaine