AUTHOR=Frontiers Editorial Office TITLE=Retraction: Study on the Effect of Oral Administration of Bacteriophages in Charles Foster Rats with Special Reference to Immunological and Adverse Effects JOURNAL=Frontiers in Pharmacology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2021.824722 DOI=10.3389/fphar.2021.824722 ISSN=1663-9812