[Phonocardiographic study of fetal heartsound during labor and delivery].
D036861:Delivery, Obstetric; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D007743:Labor, Obstetric; D010701:Phonocardiography; D011247:Pregnancy; D014937:Work
FETUS/physiology; PHONOCARDIOGRAPHY/in pregnancy