title: Frontal sinus disease. II. Development of the frontal sinus model: occlusion of the nasofrontal duct.
mesh_terms: D000402:Airway Obstruction / Q000150:complications / Q000503:physiopathology*; D000818:Animals; D004195:Disease Models, Animal; D004285:Dogs; D005626:Frontal Sinus / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology*; D008854:Microscopy, Electron; D009078:Mucocele / Q000209:etiology; D009297:Nasal Mucosa / Q000473:pathology; D009666:Nose / Q000601:surgery; D010027:Osteotomy; D011859:Radiography; D012852:Sinusitis / Q000209:etiology; D014420:Turbinates / Q000601:surgery