Correction

Boyle, P.M., and E.J. Vigmond. 2010. An Intuitive Safety Factor for Cardiac Propagation. Biophys. J. 98(12): L57–L59

Within this article, "+Qs" should be added to the numerator of Equation 6 and "-Qs" removed from Equation 7.

All results were produced using the correct equations; therefore, none of the figures, graphs, or tables are affected. The corrected equations are as follows:

$$S{F}_{VB}=\frac{\frac{1}{\beta }{\int }_A\nabla ·{\sigma }_m\nabla V_{m}dt+Q_S}{Q_{thr}\left(t_A\right)};A\in \left[t_{1\%},t_{I_{m}0}\right]$$ (6)

$$=\frac{C_m\Delta V_m+Q_{ion}}{Q_{thr}\left(t_A\right)};t_{A=}{t}_{I_{m}0}-t_{1\%}$$ (7)