Selling the worker on hearing conservation.
D001296:Audiovisual Aids; D003638:Deafness / Q000517:prevention & control*; D004430:Ear Protective Devices; D006266:Health Education; D006801:Humans; D009040:Motion Pictures; D009622:Noise / Q000517:prevention & control; D009784:Occupational Diseases / Q000517:prevention & control*; D009787:Occupational Medicine; D014481:United States