Refractory serous otitis media in children.
D002648:Child; D002908:Chronic Disease; D006801:Humans; D008417:Mastoiditis / Q000209:etiology; D010033:Otitis Media / Q000150:complications / Q000628:therapy; D011379:Prognosis; D012130:Respiratory Hypersensitivity / Q000150:complications; D012621:Seasons; D013997:Time Factors; D014432:Tympanic Membrane / Q000601:surgery; D014945:Wound Healing