title: Random urine drug testing.
authors.forename: Margaret F
authors.initials: MF
authors.lastname: Brock
authors.forename: Raymond C
authors.initials: RC
authors.lastname: Roy
mesh_terms: D000776:Anesthesiology; D006801:Humans; D007396:Internship and Residency; D010820:Physicians; D015813:Substance Abuse Detection; D019966:Substance-Related Disorders / Q000175:diagnosis* / Q000517:prevention & control / Q000523:psychology