Role of state health departments in testing proficiency of drug abuse toxicology for intrastate clinical laboratories.
D002624:Chemistry, Clinical / Q000592:standards*; D000431:Ethanol / Q000097:blood; D006077:Government Agencies; D006801:Humans; D007753:Laboratories / Q000592:standards*; D009518:New York; D004364:Pharmaceutical Preparations / Q000652:urine; D019966:Substance-Related Disorders; D014116:Toxicology
D004364:Pharmaceutical Preparations; D000431:Ethanol