A continuous record of fetal heart rate obtained by serial counts.
D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D008722:Methods; D009119:Muscle Contraction; D010173:Palpation; D011247:Pregnancy; D014159:Transducers; D014465:Ultrasonics; D014599:Uterus / Q000502:physiology