[Observations on hearing loss in higher frequencies with chronic otitis media in excessively noisy environments].
D000328:Adult; D001299:Audiometry; D001844:Bone Conduction; D002908:Chronic Disease; D006311:Hearing Disorders; D006317:Hearing Loss, Noise-Induced / Q000150:complications*; D006801:Humans; D008875:Middle Aged; D009622:Noise; D010033:Otitis Media / Q000503:physiopathology*; D013997:Time Factors