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. 2021 Mar 26;18:16. doi: 10.1186/s12989-021-00408-z

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© The Author(s) 2021

Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 2 — MWCNT effects on alveolar macrophages following 30-day exposure + 10 days recovery retrieved by lung lavage. a Increase in AM side scatter (SSC) follows the MWCNT dose-response, indicating the particle was still in the lungs 40 days from the start of the exposure and 10 days from the last exposure. *** indicates P < 0.001 compared to Air control and low dose. §§§ P < 0.001 compared to all other groups. b LLF total cell counts c AM percent of total cells. d AM MHCII expression (relative median fluorescence intensity). e AM Ly-6c expression (relative median fluorescence intensity). All data expressed as mean ± SEM (n = 4 pairs)