Sano, H Investigation of pure-tone hearing levels at a single frequency in sudden deafness. [electronic resource] - Acta oto-laryngologica. Supplementum 1994 - 21-6 p. digital Publication Type: Journal Article ISSN: 0365-5237 Standard No.: 10.3109/00016489409127552 doi Subjects--Topical Terms: AdolescentAdultAgedAudiometry, Pure-Tone--classificationAuditory Threshold--physiologyChildFemaleHearing--physiologyHearing Loss, Sensorineural--diagnosisHearing Loss, Sudden--diagnosisHumansMaleMiddle AgedRetrospective StudiesTime Factors