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. 2017 Jul 20;7:76. doi: 10.1186/s13613-017-0299-9

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.

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Fig. 3 — Correlation between PEEP and FiO₂ set according to ARDSnet and EIT: As expected, there was a strong correlation between PEEP_ARDSnet and FiO₂ set according to ARDSnet table (R ² = 0.80, p < 0.001); on the contrary, no significant association was observed between PEEP_EIT and predicted FiO₂ (R ² = 0.12, p = 0.217)