Turn it down!
Johnson
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Illbruck, Inc. of Minneapolis, Minn., USA.
D004430:Ear Protective Devices; D006311:Hearing Disorders / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D007221:Industry / Q000592:standards*; D009623:Noise, Occupational / Q000009:adverse effects / Q000517:prevention & control*; D016273:Occupational Exposure; D014481:United States; D014489:United States Occupational Safety and Health Administration