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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/).
Representative negative pressure application protocol and reference CRM (RCRM) values during the baseline, depressurization, repressurization, and recovery phases of the LBNP studies. The duration of each phase varied based on the ramp speed selected for that trial.