The components of electrical diastole and systole aganist the heart cycle time.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D007223:Infant; D008875:Middle Aged