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Evaluation of the effects of premature stimulation on action potential waveforms generated by the baseline atrial fibrillation (AF) model (A) compared with AF action potential waveforms generated after a switch of 50% of the Kv4.3 conductance for Kv1.4 (B). The layout of this figure is analogous to the sinus rhythm (SR) data shown in Fig. 4 to allow direct comparisons.
