Random drug testing.
D000428:Alcohol Drinking / Q000517:prevention & control; D003815:Dentists; D000431:Ethanol; D006801:Humans; D013287:Illicit Drugs; D011363:Professional Impairment; D013335:Students, Dental; D015813:Substance Abuse Detection / Q000191:economics / Q000331:legislation & jurisprudence / Q000379:methods*; D019966:Substance-Related Disorders / Q000517:prevention & control; D006113:United Kingdom
D013287:Illicit Drugs; D000431:Ethanol