title: [Permanent patency of the Eustachian tube; an unknown form of pregnancy toxemia?].
mesh_terms: D000328:Adult; D004427:Ear Diseases / Q000209:etiology*; D005064:Eustachian Tube; D005260:Female; D006801:Humans; D011225:Pre-Eclampsia / Q000150:complications*; D011247:Pregnancy
vernacular_title: Permanent openstaan van de buis van Eustachius, een onbekende gestose?