Instrumentation for fetal heart rate monitoring.
D004562:Electrocardiography / Q000379:methods; D005260:Female; D005318:Fetal Heart; D006339:Heart Rate; D006801:Humans; D008722:Methods; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D010701:Phonocardiography; D011247:Pregnancy; D014463:Ultrasonography; D014590:Uterine Contraction