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. 2020 May 22;10:8581. doi: 10.1038/s41598-020-65620-x

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© The Author(s) 2020

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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% Tail DNA, as evaluated by means of the Comet test, in A549 and Raw 267.4 cells after exposure for 12 h to the lowest (0.33 µg/ cm²) and to the highest concentrations (15.62 µg/cm²) either of slag powder particles or of asbestos. The columns report the means + SD of triplicate analyses. Statistical analysis: ^bP < 0.01 and ^cP < 0.001 vs. controls.