title: Urine drug screening: chemical McCarthyism.
mesh_terms: D004992:Ethics, Medical; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D008403:Mass Screening; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000652:urine*; D014556:Urine / Q000032:analysis*