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Figure 1 Effect of biventricular pacing on measured parameters. BiV = atrial sensed biventricular pacing; ${Delta}$ Ø (RV-LV) = difference in RV and LV mean phase angles; LV = left ventricular; LVEF = left ventricular ejection fraction; NSR = normal sinus rhythm; RV = right ventricular; RVEF = right ventricular ejection fraction; SD LVØ = standard deviation of LV mean phase angle; SD RVØ = standard deviation of RV mean phase angle.

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