title: Position of the fetal head in late pregnancy estimated by the B-scan.
mesh_terms: D002508:Cephalometry; D004453:Echoencephalography; D005260:Female; D005333:Fetus; D006257:Head; D006801:Humans; D007746:Labor Presentation; D011225:Pre-Eclampsia; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011254:Pregnancy in Diabetics