title: Doppler ultrasound and subjective assessment of fetal activity.
mesh_terms: D004301:Doppler Effect; D005260:Female; D005323:Fetal Monitoring / Q000379:methods*; D005333:Fetus / Q000502:physiology*; D006801:Humans; D009068:Movement; D010701:Phonocardiography; D011247:Pregnancy; D014463:Ultrasonography