title: Heroin--the next step.
mesh_terms: D002170:Canada; D005582:Foundations; D003932:Heroin / Q000627:therapeutic use*; D006801:Humans; D007880:Legislation, Drug; D010148:Intractable Pain / Q000188:drug therapy*; D010166:Palliative Care
chemical_list: D003932:Heroin