title: Comparison of acetylmethadol and methadone in the treatment of long-term heroin users. A pilot study.
mesh_terms: D000438:Alcohols / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003932:Heroin; D006801:Humans; D008691:Methadone / Q000008:administration & dosage / Q000627:therapeutic use*; D009021:Morphine Dependence / Q000188:drug therapy*; D010919:Placebos; D013375:Substance Withdrawal Syndrome
chemical_list: D000438:Alcohols; D010919:Placebos; D003932:Heroin; D008691:Methadone