The effect of long term use of hearing protectors in industrial noise.
D000328:Adult; D001301:Audiometry, Pure-Tone; D004430:Ear Protective Devices / Q000706:statistics & numerical data*; D006317:Hearing Loss, Noise-Induced / Q000175:diagnosis / Q000517:prevention & control*; D006801:Humans; D009622:Noise; D009623:Noise, Occupational; D011482:Protective Devices / Q000706:statistics & numerical data*