title: Rheumatoid factor activity in heroin addicts on methadone maintenance.
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D000469:Alkaline Phosphatase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000097:blood; D001663:Bilirubin / Q000097:blood; D005189:False Positive Reactions; D006556:Heroin Dependence / Q000150:complications / Q000188:drug therapy / Q000276:immunology*; D006801:Humans; D006942:Hypergammaglobulinemia / Q000150:complications; D007841:Latex Fixation Tests; D008107:Liver Diseases / Q000150:complications; D008691:Methadone / Q000627:therapeutic use*; D012217:Rheumatoid Factor / Q000032:analysis*
chemical_list: D012217:Rheumatoid Factor; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D000469:Alkaline Phosphatase; D001663:Bilirubin; D008691:Methadone