[Ultrasonic fetal cephalometry. I. Technic, principles and precision of the method].
D002508:Cephalometry; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D008722:Methods; D011247:Pregnancy; D014465:Ultrasonics
Céphalométrie foetale par ultrasons. I. Technique, principe et précision de la métode.