Correction: Comparison between intra-articular ozone and placebo in the treatment of knee osteoarthritis: A randomized, double-blinded, placebo-controlled study
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by Carlos César Lopes de Jesus, Fânia Cristina dos Santos, Luciana Maria Oliveira Bueno de Jesus, Iara Monteiro, Maria Sonia Sousa Castro Sant’Ana, Virginia Fernandes Moça Trevisani