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. 2018 Jan 31;14(3):29. doi: 10.1007/s11306-018-1327-y

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© The Author(s) 2018

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.

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Fig. 2 — One example of the SRD results (Dataset 3). Normalized SRD values (percentages) are plotted on the X and left Y axes. The cumulative relative frequencies of SRD values in the randomization test (%) are plotted on the right Y axis. (The original plot was magnified for better visualization). (Color figure online)