title: Major patterns of polydrug abuse among heroin addicts.
mesh_terms: D000437:Alcoholism / Q000150:complications; D000662:Amphetamines; D001463:Barbiturates; D002188:Cannabis; D003042:Cocaine; D003975:Diazepam; D006556:Heroin Dependence / Q000150:complications* / Q000534:rehabilitation; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use; D019966:Substance-Related Disorders / Q000503:physiopathology* / Q000534:rehabilitation
chemical_list: D000662:Amphetamines; D001463:Barbiturates; D003042:Cocaine; D003975:Diazepam; D008691:Methadone