ROSEN, S Presbycusis study of a relatively noise-free population in the Sudan. [electronic resource] - The Annals of otology, rhinology, and laryngology Sep 1962 - 727-43 p. digital Publication Type: Journal Article ISSN: 0003-4894 Standard No.: 10.1177/000348946207100313 doi Subjects--Topical Terms: AgingHearingHumansNoisePresbycusisSudan