title: Effective drug-free workplace plan uses worker testing as a deterrent.
authors.forename: M M
authors.initials: MM
authors.lastname: Quazi
mesh_terms: D001290:Attitude; D003365:Costs and Cost Analysis; D006801:Humans; D016272:Occupational Health; D009790:Occupations; D015813:Substance Abuse Detection / Q000191:economics; D019966:Substance-Related Disorders / Q000517:prevention & control*