title: Effects of frequent ultrasound during pregnancy.
authors.forename: G H
authors.initials: GH
authors.lastname: Visser
authors.forename: J I
authors.initials: JI
authors.lastname: de Vries
authors.forename: E J
authors.initials: EJ
authors.lastname: Mulder
authors.forename: I A
authors.initials: IA
authors.lastname: Ververs
authors.forename: H P
authors.initials: HP
authors.lastname: van Geijn
mesh_terms: D001724:Birth Weight; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000009:adverse effects*