Flag-RadΔCT cardiomyocytes display faster I _Ca,L decay kinetics. (A and B) Confidence intervals of differences between genotypes at a given V_test was calculated from cells for (A) percent remaining current 30 milliseconds after peak current and (B) current 150 ms after peak current. Individual mice and cell data points are plotted that represent the averages shown in Fig. 4, B and C.