Focus: nonsuppurative otitis media.
D002648:Child; D002675:Child, Preschool; D006311:Hearing Disorders / Q000517:prevention & control; D006801:Humans; D007223:Infant; D008876:Middle Ear Ventilation; D009730:Nursing Assessment; D010033:Otitis Media / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*