Problems and issues encountered in drug abuse research.
D000437:Alcoholism / Q000209:etiology; D004335:Drug and Narcotic Control / Q000379:methods; D006801:Humans; D013287:Illicit Drugs; D011619:Psychotropic Drugs; D012106:Research; D012907:Smoking; D012932:Social Facilitation; D019966:Substance-Related Disorders / Q000209:etiology*
D013287:Illicit Drugs; D011619:Psychotropic Drugs