title: [Measurement of the biparietal diameter by ultrasonics. Preliminary report].
mesh_terms: D002508:Cephalometry; D005314:Embryonic and Fetal Development; D005069:Evaluation Studies as Topic; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008722:Methods; D010294:Parietal Bone; D011247:Pregnancy; D014463:Ultrasonography
vernacular_title: Medición del diámetro biparietal por ultrasonido. Reporte preliminar.