Ultrasound investigation of the sinuses: a real advance in diagnosis?
D002908:Chronic Disease; D006801:Humans; D008443:Maxillary Sinus; D010254:Paranasal Sinus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging; D011859:Radiography; D014463:Ultrasonography