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. 2019 Nov 15;10:2614. doi: 10.3389/fmicb.2019.02614

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Copyright © 2019 Amaretti, Gozzoli, Simone, Raimondi, Righini, Pérez-Brocal, García-López, Moya and Rossi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Spearman’s rank correlation among the OTUs and ammonium, indole, and p-cresol. Only OTUs significantly correlating with at least one metabolite are displayed. Rho values are reported in the heatmap if statistically significant (P < 0.05), ranging from the deepest red (–1) to the deepest green (+1). The OTUs that were evidenced by LEfSe as biomarkers with significant increase () or decrease () are in bold.

Inline graphic — Spearman’s rank correlation among the OTUs and ammonium, indole, and p-cresol. Only OTUs significantly correlating with at least one metabolite are displayed. Rho values are reported in the heatmap if statistically significant (P < 0.05), ranging from the deepest red (–1) to the deepest green (+1). The OTUs that were evidenced by LEfSe as biomarkers with significant increase () or decrease () are in bold.