The practical side of hearing conservation.
D001299:Audiometry / Q000295:instrumentation / Q000592:standards*; D004430:Ear Protective Devices / Q000592:standards; D006076:Government; D006311:Hearing Disorders / Q000517:prevention & control*; D006801:Humans; D007878:Legislation as Topic; D008499:Medical Records; D014481:United States