AUTHOR=Salmanzadeh Shokrollah , Sheibani Behnam , Bitaraf Saeid , Nashibi Roohangize , Moogahi Sasan TITLE=Therapeutic efficacy of ozonated blood in severe COVID-19 patients: a randomized controlled trial JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1546767 DOI=10.3389/fmed.2025.1546767 ISSN=2296-858X