The drug abuse numbers game.
D004355:Drug Stability; D004335:Drug and Narcotic Control; D004813:Epidemiology; D005069:Evaluation Studies as Topic; D006805:Human Experimentation; D006801:Humans; D012107:Research Design; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D019966:Substance-Related Disorders / Q000453:epidemiology*; D014481:United States