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Figure 2 Inter-ventricular asynchrony as a function of (A) the paced atrioventricular (AV) delay and (B) the left ventricular–right ventricular (LV–RV) excitation time difference (TVV) during LV apex, biventricular (BiV), and LV lateral wall pacing. The results for anterior and posterior wall pacing were comparable to those for lateral wall pacing.