International patterns of drug abuse and control.
D002188:Cannabis; D003042:Cocaine / Q000600:supply & distribution; D004335:Drug and Narcotic Control; D006076:Government; D003932:Heroin / Q000600:supply & distribution; D006801:Humans; D007391:International Cooperation; D019966:Substance-Related Disorders / Q000517:prevention & control*; D014481:United States
D003932:Heroin; D003042:Cocaine