title: Quantification of fetal swallowing by ultrasound is impossible.
authors.forename: A
authors.initials: A
authors.lastname: van den Brink
authors.forename: Ph
authors.initials: P
authors.lastname: Stoutenbeek
mesh_terms: D003679:Deglutition / Q000502:physiology*; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011446:Prospective Studies; D016216:Ultrasonography, Prenatal