Mori, M [The standard in evaluation of the variation of the hearing acuity]. [electronic resource] - Nihon Jibiinkoka Gakkai kaiho Nov 1967 - 1828-46 p. digital Publication Type: Journal Article ISSN: 0030-6622 Subjects--Topical Terms: AdultAuditory PerceptionHearingHearing Tests--standardsHumansMiddle AgedSpeech