Correction: The quaternary lidocaine derivative QX-314 in combination with bupivacaine for long-lasting nerve block: Efficacy, toxicity, and the optimal formulation in rats

The image for Fig 2 is incorrect. Please see the complete, correct Fig 2 here.

Fig 2. The final weighted modification model for sensory blocks.

The model predictions were in reasonable agreement with the observations (A, B). Individual residuals were evenly distributed (C); and the weighted residuals were within ± 4 (D). The response-surfaces for sensory block (E) indicated that the duration of effective nerve blockade (Epred) prolonged as the concentration of QX-314 (X₁), but not bupivacaine (X₂), increased.