title: DURATION OF THE PHASES OF MECHANICAL SYSTOLE IN INFANTS AND CHILDREN.
mesh_terms: D000293:Adolescent; D002320:Cardiovascular Physiological Phenomena; D002648:Child; D006321:Heart; D006326:Heart Auscultation; D006339:Heart Rate; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D010701:Phonocardiography; D010827:Physiology; D011674:Pulse; D013599:Systole
keywords: ADOLESCENCE; CHILD; HEART; HEART AUSCULTATION; INFANT; INFANT, NEWBORN; INFANT, PREMATURE; PHONOCARDIOGRAPHY; PHYSIOLOGY; PULSE