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Letter to the editor concerning “A meta-analysis and systematic review of the clinical efficacy and safety of platelet-rich plasma combined with hyaluronic acid (PRP + HA) versus PRP monotherapy for knee osteoarthritis (KOA)”

Crossref DOI link: https://doi.org/10.1186/s13018-025-05998-4

Published Online: 2025-06-17

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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