Multiple platelet-rich plasma injections are superior to single PRP injections or saline in osteoarthritis of the knee: the 2-year results of a randomized, double-blind, placebo-controlled clinical trial.
Alparslan YurtbayFerhat SayHikmet ÇinkaAhmet ErsoyPublished in: Archives of orthopaedic and trauma surgery (2021)
NCT04454164 (ClinicalTrials.gov identifier).