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. 2022 May 5;12:7402. doi: 10.1038/s41598-022-11237-1

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© The Author(s) 2022

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 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/.

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CT scan series in a 65-year-old COVID-19 patient with abnormal DL_CO (61.0%) at the six-month follow-up. (a) Transverse CT scan obtained 31 days after the onset of symptoms showed multiple consolidations with ground-glass opacities bilaterally. (b) Scan obtained during full inspiration on 206 days showed that previous opacifications were markedly dissipated subpleural, irregular linear opacities. (c) Scan obtained during expiration at 200 days showed substantial air trapping.