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. 2021 Oct 27;53(10):1636–1646. doi: 10.1038/s12276-021-00686-9

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© The Author(s) 2021

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Fig. 1 — a The α-diversity of Shannon entropy in Pre-BC (red box) was significantly lower than that in Pre-C (green box); this phenomenon was not observed in Post-BC (purple box). b The β-diversity of PCoA demonstrated significant differences (p < 0.001) in the total microbial composition among the four groups. c The relative abundance of OTUs at the phylum and species levels among the four groups.