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. Author manuscript; available in PMC: 2006 Oct 1.
Published in final edited form as: J Electrocardiol. 2005 Oct;38(4 Suppl):75–80. doi: 10.1016/j.jelectrocard.2005.06.009

Fig. 1.

Fig. 1

This tracing depicts the induction of ventricular fibrillation during invasive electrophysiological stimulation. Three premature stimuli induce ventricular fibrillation (HRA 1/2, HRA 3/4 bipolar electrogram from right atrial electrode, RVA 1/2 and RVA 3/4 bipolar electrogram at right ventricle).