title: An empirical evaluation of preemployment drug testing in the United States Postal Service: interim report of findings.
authors.affiliation: Office of Selection and Evaluation, U.S. Postal Service, Washington, D.C. 20260-4257.
authors.forename: J
authors.initials: J
authors.lastname: Normand
authors.forename: S
authors.initials: S
authors.lastname: Salyards
mesh_terms: D000328:Adult; D004650:Employee Performance Appraisal; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009786:Occupational Health Services; D010563:Personnel Turnover; D011177:Postal Service; D015995:Prevalence; D019966:Substance-Related Disorders / Q000175:diagnosis*; D014481:United States