Grommets for glue ear.
D002648:Child; D006801:Humans; D008876:Middle Ear Ventilation; D010034:Otitis Media with Effusion / Q000453:epidemiology / Q000503:physiopathology / Q000601:surgery*; D016032:Randomized Controlled Trials as Topic; D016896:Treatment Outcome; D006113:United Kingdom / Q000453:epidemiology