title: Middle ear effusion.
mesh_terms: D000158:Acoustic Impedance Tests; D001299:Audiometry; D002648:Child; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000150:complications*; D007073:Immunoglobulin E / Q000032:analysis; D010033:Otitis Media / Q000175:diagnosis* / Q000276:immunology
chemical_list: D007073:Immunoglobulin E