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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Correlation between LUS and CT scan. Correlation between the volume of gas and hyper-aeration at CT scan and the difference between the first (baseline) and the second (immediately after RPT) LUS have been identified.