AUTHOR= Frontiers Editorial Office TITLE=Retraction: Mesenchymal stem/stromal cells as a vehicle for cytokine delivery: an emerging approach for tumor immunotherapy JOURNAL=Frontiers in Medicine VOLUME=10 YEAR=2023 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2023.1285195 DOI=10.3389/fmed.2023.1285195 ISSN=2296-858X