The prediction of fetal maturity by ultrasonic measurement of the biparietal diameter.
D002508:Cephalometry; D005314:Embryonic and Fetal Development; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007751:Labor, Induced; D007743:Labor, Obstetric; D008722:Methods; D011247:Pregnancy; D013223:Statistics as Topic; D014465:Ultrasonics