What's a deviated nasal septum? Does it need to be corrected?
D006801:Humans; D015508:Nasal Obstruction / Q000209:etiology / Q000628:therapy*; D009300:Nasal Septum / Q000002:abnormalities* / Q000601:surgery; D009667:Nose Deformities, Acquired / Q000150:complications* / Q000601:surgery