Impact of exposure to noise on the hearing acuity of employees in a heavy engineering industry.
D000328:Adult; D000367:Age Factors; D004738:Engineering; D006317:Hearing Loss, Noise-Induced / Q000453:epidemiology*; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged; D009622:Noise / Q000009:adverse effects*; D009623:Noise, Occupational / Q000009:adverse effects*; D009784:Occupational Diseases / Q000453:epidemiology*; D013997:Time Factors