Tonsils and glue ear.
D000233:Adenoidectomy; D002648:Child; D004427:Ear Diseases / Q000517:prevention & control* / Q000628:therapy; D006801:Humans; D008417:Mastoiditis / Q000517:prevention & control; D010033:Otitis Media / Q000628:therapy; D014068:Tonsillectomy