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. 2016 Feb 10;6:20835. doi: 10.1038/srep20835

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Copyright © 2016, Macmillan Publishers Limited

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Top (a,b): two examples of persistent activation patterns emerged in the heterogeneous fibrotic medium by burst pacing: (a) arrhythmia mediated with a single independent spiral (Pattern (a)); (b) multiple wavelets fibrillation (Pattern (b)). Middle (c,d): pseudo-ECG for (c) Pattern (a) and (d) Pattern (b). Middle (e,f): maps of the interbeat interval for (e) Pattern (a) and (f) Pattern (b). Positions of inexcitable fibroblasts are shown in black. Bottom (g,h): frequency distibution profiles for (g) Pattern (a) and (h) Pattern (b). For these simulations, the values of the parameters are the same as for the simulations presented in Fig. 1: f = 25%, σ = 25%, l = 16 mm.