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. 2020 Mar 10;10:4431. doi: 10.1038/s41598-020-61193-x

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Results of analysis of composition of microbiomes (ANCOM) test, showing OTUs that are differentially abundant across pH levels. The points and dotted lines are smooth splines generated to summarize the individual trends in change of mean log relative abundance for each OTU across pH levels. Bars indicate standard deviation.