title: Positive preemployment urine drug screen caused by foreign-manufactured vitamin formulation.
authors.forename: M J
authors.initials: MJ
authors.lastname: Fedoruk
authors.forename: L
authors.initials: L
authors.lastname: Lee
mesh_terms: D000328:Adult; D003975:Diazepam / Q000032:analysis / Q000652:urine*; D004544:El Salvador; D004651:Employment; D005189:False Positive Reactions; D006801:Humans; D008297:Male; D015813:Substance Abuse Detection; D014815:Vitamins / Q000737:chemistry
chemical_list: D014815:Vitamins; D003975:Diazepam