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Cell viability of osteosarcoma cell line (Saos-2) after 48 h incubation with non-passivated (BG, BGSr1, BgSr2, BGMg1 and BGMg2) and passivated (BGP, BGSr1P, BGSr2P, BGMg1P and BGMg2P) bioactive glass extracts. Dashed line is related to the percentage of cell viability above which extracts are non-cytotoxic.
