Pressure-equalizing tubes and middle ear drainage.
D002648:Child; D002908:Chronic Disease; D004428:Ear Neoplasms / Q000601:surgery*; D005549:Foreign-Body Reaction / Q000150:complications*; D006801:Humans; D010033:Otitis Media / Q000601:surgery; D011127:Polyps / Q000601:surgery*; D014432:Tympanic Membrane / Q000601:surgery*