title: ELPAT (Environmental Lead Proficiency Analytical Testing) program report: background and current status (October, 1997).
authors.forename: C A
authors.initials: CA
authors.lastname: Esche
authors.forename: J H
authors.initials: JH
authors.lastname: Groff
mesh_terms: D000068:Accreditation; D000704:Analysis of Variance; D015982:Bias; D004391:Dust / Q000032:analysis; D004784:Environmental Monitoring / Q000592:standards*; D006801:Humans; D007753:Laboratories / Q000592:standards*; D007855:Lead Poisoning / Q000517:prevention & control*; D010150:Paint / Q000032:analysis; D012015:Reference Standards; D012987:Soil / Q000032:analysis; D014481:United States
chemical_list: D004391:Dust; D012987:Soil