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Figures 6 (A and B) Tissue-Doppler–derived parameters of left intraventricular synchrony. LVS = duration of systolic ejection velocities >0.5 cm/s averaged for 12 myocardial segments and given in percent of ejection time; LVS-SD = standard deviation of 12 segmental measurements of LVS; other abbreviations as in Figure 4. For description of the box plot design, see legend to Figure 4.