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. 2019 Jun 25;10:1419. doi: 10.3389/fmicb.2019.01419

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Copyright © 2019 Gong, Wu, Kong, Zhang, Hu, Gong, Dong, Wang, Zhao and Liao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Phylogenetic tree analysis of N1-4 and other homologous strains based on 16S rRNA sequences. The tree was constructed with neighbor-joining methods and the scale bar represents the number of substitutions per base position.