title: [CONTRIBUTION TO THE STUDY OF FETAL ELECTROCARDIOGRAPHY AND PHONOCARDIOGRAPHY].
mesh_terms: D001919:Bradycardia; D005117:Cardiac Complexes, Premature; D004562:Electrocardiography; D005260:Female; D005318:Fetal Heart; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010701:Phonocardiography; D011247:Pregnancy
keywords: BRADYCARDIA; ELECTROCARDIOGRAPHY; EXTRASYSTOLE; FETAL HEART; INFANT, NEWBORN; PHONOCARDIOGRAPHY; PREGNANCY
vernacular_title: CONTRIBUTO ALLO STUDIO DELLA ELETTROCARDIOGRAFIA E FONOCARDIOGRAFIA FETALE.