title: Employment follow-up after initial drug screening.
authors.forename: R B
authors.initials: RB
authors.lastname: Singer
mesh_terms: D000206:Actuarial Analysis; D000328:Adult; D001900:Boston; D004651:Employment / Q000706:statistics & numerical data; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D011446:Prospective Studies; D015813:Substance Abuse Detection; D019966:Substance-Related Disorders / Q000453:epidemiology