Public health and changes in illicit drug prices.
Hagan
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D019970:Cocaine-Related Disorders / Q000453:epidemiology* / Q000517:prevention & control; D004335:Drug and Narcotic Control / Q000331:legislation & jurisprudence; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data / Q000639:trends; D006556:Heroin Dependence / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D013287:Illicit Drugs / Q000191:economics* / Q000331:legislation & jurisprudence; D011159:Population Surveillance / Q000379:methods; D011634:Public Health / Q000331:legislation & jurisprudence; D012307:Risk Factors; D013997:Time Factors; D014481:United States / Q000453:epidemiology
D013287:Illicit Drugs