title: [Ultrasonic studies using the maxillary sinus as an example].
authors.forename: J
authors.initials: J
authors.lastname: Düker
mesh_terms: D006801:Humans; D008443:Maxillary Sinus; D010254:Paranasal Sinus Diseases / Q000175:diagnosis; D014463:Ultrasonography
vernacular_title: Ultraschalluntersuchung am Beispiel der Kieferhöhle.