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Dose effect of the main antistaphylococcal molecules on intraosteoblastic inoculum. The results are expressed by the change in the number of intracellular CFU (Δlog CFU; means and 95% CI) at 2 h, starting from an initial intracellular inoculum of 1.8 × 106 (95% CI = 1.4 × 106 to 2.1 × 106) for 100,000 osteoblasts. The dose effect was assessed using linear regression between the three used concentrations. CI, confidence interval; *, P < 0.05.
