title: Bias introduced by NIOSH Method 7400 quantitative fiber exposure assessment.
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D001194:Asbestos / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D006801:Humans; D009314:National Institute for Occupational Safety and Health, U.S.; D012306:Risk; D014481:United States
chemical_list: D000395:Air Pollutants, Occupational; D001194:Asbestos