title: [Phase analysis of the cardiac systole of healthy newborn infants according to polycardiographic data].
mesh_terms: D004562:Electrocardiography; D006334:Heart Function Tests; D006801:Humans; D007231:Infant, Newborn; D010507:Periodicity
vernacular_title: Fazovyĭ analiz serdechnoĭ sistoly u zdorovykh novorozhdennykh deteĭ po dannym polikardiografii.