Sampling technique for medcially significant drug abuse.
D000437:Alcoholism / Q000453:epidemiology; D000661:Amphetamine; D000928:Antidepressive Agents; D001463:Barbiturates; D004812:Epidemiologic Methods; D006213:Hallucinogens; D006556:Heroin Dependence / Q000453:epidemiology; D006753:Hospital Records; D006760:Hospitalization; D006801:Humans; D008238:Lysergic Acid Diethylamide; D009892:Opium; D009922:Oregon; D019966:Substance-Related Disorders / Q000453:epidemiology*
D000928:Antidepressive Agents; D001463:Barbiturates; D006213:Hallucinogens; D009892:Opium; D008238:Lysergic Acid Diethylamide; D000661:Amphetamine