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Clinical scoring. (A) IKDC score, (B) VAS and (C) WOMAC score in the PRP and HA groups before, and then 1 and 6 months after treatment. *P<0.05 vs. basal. IKDC, International Knee Documentation Committee; VAS, visual analogue scale; WOMAC, Western Ontario and McMaster Universities; PRP, Platelet-rich plasma; HA, hyaluronic acid.
