title: Protective devices in a hearing conservation program. The rationale and justification of personal hearing protectors.
mesh_terms: D001299:Audiometry; D003638:Deafness / Q000209:etiology / Q000517:prevention & control*; D004430:Ear Protective Devices; D004781:Environmental Exposure; D005069:Evaluation Studies as Topic; D006801:Humans; D008452:Maximum Allowable Concentration; D009622:Noise / Q000009:adverse effects / Q000517:prevention & control; D009784:Occupational Diseases / Q000209:etiology / Q000517:prevention & control*; D009787:Occupational Medicine / Q000592:standards; D011482:Protective Devices; D014481:United States