title: Proficiency Analytical Testing (PAT) Program. August 1999.
authors.affiliation: Department of Health and Human Services, U.S. Public Health Service, Centers for Disease Control and Prevention, Cincinnati, OH, USA.
authors.forename: H A
authors.initials: HA
authors.lastname: Feng
authors.forename: P
authors.initials: P
authors.lastname: Schlecht
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D004784:Environmental Monitoring / Q000592:standards* / Q000706:statistics & numerical data; D006801:Humans; D007753:Laboratories / Q000592:standards*; D008670:Metals / Q000032:analysis*; D009314:National Institute for Occupational Safety and Health, U.S.; D016273:Occupational Exposure / Q000517:prevention & control*; D012015:Reference Standards; D012997:Solvents / Q000032:analysis*; D014481:United States
chemical_list: D000395:Air Pollutants, Occupational; D008670:Metals; D012997:Solvents