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. 2005 Jan 17;144(3):376–385. doi: 10.1038/sj.bjp.0706070

Figure 4.

Figure 4

Comparison of RUD on APD90 induced by drugs of groups A–C. RUD is calculated as the maximum difference in the percentages of increase in APD90 at low (20 ppm) and normal (60 ppm) stimulation rates. Torsadogenic drugs of the subgroup A1 exhibit the highest RUD (e.g. dofetilide, sotalol,…).