AUTHOR= Frontiers Editorial Office TITLE=Expression of concern: Comparing the predictive value of quantitative magnetic resonance imaging parametric response mapping and conventional perfusion magnetic resonance imaging for clinical outcomes in patients with chronic ischemic stroke JOURNAL=Frontiers in Neuroscience VOLUME=17 YEAR=2024 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2023.1354585 DOI=10.3389/fnins.2023.1354585 ISSN=1662-453X