title: [Ultrasonic monitoring in obstetrical practice. Its use and evaluation].
mesh_terms: D005260:Female; D005318:Fetal Heart; D006326:Heart Auscultation; D006801:Humans; D007743:Labor, Obstetric; D008991:Monitoring, Physiologic; D011247:Pregnancy; D014463:Ultrasonography
vernacular_title: El monitor de ultrasonido en la práctica obstétrica. Su empleo y valoración.