title: [Position control of central venous catheters in obstetrics without ionizing radiation].
mesh_terms: D002404:Catheterization; D004562:Electrocardiography; D005260:Female; D006801:Humans; D011247:Pregnancy; D014684:Venae Cavae
vernacular_title: Lagekontrolle von zentralen Venenkathetern in der Geburtshilfe unter Vermeidung von ionisierenden Strahlen.