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. 2022 Mar 14;12:4329. doi: 10.1038/s41598-022-07890-1

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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/.

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Distributions of Lactic Acid Dehydrogenase and ${P a O}_{2} / {FiO}_{2}$ for patients in Non-ICU (grey) and ICU (red) severity classes. Yellow area is normal value range. Mean and median values are also indicated. LDH is an effective inflammatory biomarker. ${PaO}_{2} / {FiO}_{2}$ is a biomarker of lung functionality.