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. 2020 May 21;59(7):3325–3338. doi: 10.1007/s00394-020-02282-5

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© The Author(s) 2020

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Fig. 4 — Heatmap of OTUs related to SCFA by PLS regression. Only OTUs affected by the prebiotic intervention are presented and sorted by their effect sizes (as in Fig. 2). Correlation is estimated with Spearman’s rho coefficient, where red is a positive and blue is a negative relation. Asterisk indicates significant relationship (VIP > 1.2). Dominating OTUs (> 0.1%) are indicated in bold