[On the duration of electric mechanical systoles in healthy newborn infants].
D004562:Electrocardiography; D004594:Electrophysiology; D006326:Heart Auscultation; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D007231:Infant, Newborn
Pro tryvalist' elektrychnoï i mekhanichnoï systol sertsia u zdorovykh novonarodzhenykh diteĭ.