Monitoring labor by an exteranl tokodynamometer.
D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D009119:Muscle Contraction / Q000502:physiology; D009774:Obstetrics / Q000295:instrumentation; D011247:Pregnancy; D014599:Uterus / Q000502:physiology*