title: PAT program. Background and current status.
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D004784:Environmental Monitoring / Q000592:standards*; D015386:Hazardous Substances / Q000032:analysis*; D006801:Humans; D008422:Materials Testing; D012680:Sensitivity and Specificity; D014481:United States
chemical_list: D000395:Air Pollutants, Occupational; D015386:Hazardous Substances