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. 2022 Apr 30;22:212. doi: 10.1186/s12876-022-02293-y

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© The Author(s) 2022

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Fig. 2 — Venn diagram of the operational taxonomic units (OTUs) in group prior (red), in group post (green), and the overlap OTUs between the two groups. The number of OTUs of the samples before the EEN is 292, and that of the samples after 8-week EEN is 390. The number of the overlap OTUs is 230