AUTHOR=Hammervold Rønnaug , Beqiri Erta , Smielewski Peter , Storm Benjamin S. , Nielsen Erik W. , Guérin Claude , Frisvold Shirin K. TITLE=Positive end-expiratory pressure increases intracranial pressure but not pressure reactivity index in supine and prone positions: a porcine model study JOURNAL=Frontiers in Medicine VOLUME=11 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1501284 DOI=10.3389/fmed.2024.1501284 ISSN=2296-858X