[Hearing changes in persons working on electric locomotives].
D000328:Adult; D006311:Hearing Disorders / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology*; D011890:Railroads; D013997:Time Factors; D014586:USSR
Izmenenie slukha u lits, rabotaiushchikh na élektrovozakh