title: Normal values and regression equations of systolic time intervals.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D012016:Reference Values; D012737:Sex Factors; D013599:Systole