title: [Who should do ultrasonography during pregnancy?].
authors.forename: Y
authors.initials: Y
authors.lastname: Ville
mesh_terms: D002869:Chromosome Aberrations; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011786:Quality Control; D012307:Risk Factors; D016216:Ultrasonography, Prenatal