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. 2020 Nov 25;21(23):8946. doi: 10.3390/ijms21238946

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Principal Coordinate Analysis (PCoA) plot showing the differences in the microbiota composition of each fecal sample (inter-individual variability) on three-dimension axes. Each dot corresponds to the unique composition of a single fecal sample. The distance between dots represents the degree of variability of the microbiota composition among samples. Samples from sarcopenic subjects (n = 5) are indicated in red and samples from control subjects (n = 12) are indicated in blue. No statistically significant clusters could be identified through PERMANOVA and ANOSIM tests.