[Need of systematic echographic surveillance of pregnancy].
D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis*; D006801:Humans; D010923:Placenta Previa / Q000175:diagnosis*; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins; D014463:Ultrasonography
Pour une surveillance échographique systématique de la grossesse.