title: The NIOSH QA rule.
authors.forename: J
authors.initials: J
authors.lastname: Laws
mesh_terms: D003365:Costs and Cost Analysis; D009314:National Institute for Occupational Safety and Health, U.S.; D011785:Quality Assurance, Health Care; D012134:Respiratory Protective Devices / Q000191:economics / Q000592:standards*; D014481:United States