[Valve of the use of ultrasonics in obstetrics and gynecology].
D005260:Female; D005831:Genital Diseases, Female / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011296:Prenatal Diagnosis / Q000379:methods*; D014463:Ultrasonography
Intérêt de l'utilisation des ultrasons en obstétrique et en gynécologie