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. 2019 May 22;20:405. doi: 10.1186/s12864-019-5797-8

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Plot of principal components PC1 vs. PC2 generated from the endometrial microbiota at week 1, 5, and 9 postpartum. Separation of the week 1 endometrial microbiota from both week 5 and 9 is evident. Permanova analysis indicated that the Bray-Curtis similarity index (a measure of microbial similarity) was significantly different between week 1 and 5 (P = 0.0001) and between week 1 and 9 (P = 0.0001) and similar between week 5 and 9 (P = 0.45). Each 95% concentration ellipse estimates a region where 95% of population points are expected to fall