A serial study of noise exposure and hearing loss in a group of small and medium size factories.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001299:Audiometry; D005260:Female; D006317:Hearing Loss, Noise-Induced / Q000453:epidemiology*; D006801:Humans; D008875:Middle Aged; D009622:Noise; D009787:Occupational Medicine