Influence of timing of the extrasystolic beat on the extent of postextrasystolic potentiation in the intact human left ventricle.
D000328:Adult; D003971:Diastole; D006801:Humans; D008875:Middle Aged; D009200:Myocardial Contraction; D013599:Systole; D013997:Time Factors; D016276:Ventricular Function