[The value of ultrasound in feto-placental maturation].
D005260:Female; D005325:Fetal Organ Maturity; D005865:Gestational Age; D006801:Humans; D008168:Lung / Q000196:embryology; D010920:Placenta / Q000033:anatomy & histology / Q000502:physiology*; D011247:Pregnancy; D014465:Ultrasonics
Apport des ultrasons à la maturation foeto-placentaire.