title: [Echography in the 1st pregnancy trimester is prognostically valuable].
authors.forename: R
authors.initials: R
authors.lastname: Schats
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000295:instrumentation / Q000379:methods*; D014621:Vagina / Q000000981:diagnostic imaging
vernacular_title: Echografie in het eerste trimester van de zwangerschap prognostisch waardevol.