AUTHOR= Frontiers Editorial Office TITLE=Retraction: Intra-articular injections with either triamcinolone hexacetonide, stanozolol, hylan G-F 20, or a platelet concentrate improve clinical signs in police working dogs with bilateral hip osteoarthritis JOURNAL=Frontiers in Veterinary Science VOLUME=9 YEAR=2023 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2022.1130041 DOI=10.3389/fvets.2022.1130041 ISSN=2297-1769