"Hear this" about ear infections.
D000233:Adenoidectomy; D006801:Humans; D007223:Infant; D007804:Language Development; D008876:Middle Ear Ventilation; D009864:Ontario; D010033:Otitis Media / Q000503:physiopathology / Q000601:surgery / Q000628:therapy*; D013060:Speech; D014068:Tonsillectomy; D014481:United States