title: Real-time ultrasound B-scan as an aid to antepartum fetal heart rate monitoring in multiple pregnancy. Case report.
mesh_terms: D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D005323:Fetal Monitoring / Q000379:methods*; D006339:Heart Rate; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014310:Triplets; D014463:Ultrasonography