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. 2019 Dec 4;9:18287. doi: 10.1038/s41598-019-54675-0

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Overlap of GO terms and their biological processes over time. Venn diagram representing (A): the number of GO terms in common between 2, 4, and 24 h exposure to TiO₂ NPs, and (B): the associated biological processes to the GO terms in common between 2, 4, and 24 h exposure to TiO₂ NPs.