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. 2019 Feb 12;11:1758835918821021. doi: 10.1177/1758835918821021

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© The Author(s), 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 8. — Classification tree. The first circle represents the kingdom level (bacteria). The second circle (in same column) represents the phylum level. The subsequent order is class, order, family, genus and species. The first number (after the taxonomic ranks) represents the relative abundance of the whole corresponding taxon, while the second number represents the relative abundance of the corresponding taxon. For example, for Firmicutes (19.05%, 55.29%), 19.05% represents the proportion of this phylum among all phylum levels; 55.29% represents the proportion of this phylum among the four phylum levels.