[Use of ultrasonics in obstetrics].
D000013:Congenital Abnormalities / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control*; D014054:Tomography; D014465:Ultrasonics / Q000379:methods; D014463:Ultrasonography
L'ustilisation des ultrasons en obstétrique