title: The epidemiology of drug abuse: current issues. Research uses of the NYC register data.
mesh_terms: D004812:Epidemiologic Methods; D006801:Humans; D009294:Narcotics; D009519:New York City; D012042:Registries; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000534:rehabilitation
chemical_list: D009294:Narcotics