title: Heroin--a new old drug.
authors.forename: N P
authors.initials: NP
authors.lastname: Dasylva
mesh_terms: D001291:Attitude of Health Personnel; D002170:Canada; D003932:Heroin / Q000627:therapeutic use*; D006556:Heroin Dependence / Q000517:prevention & control; D006801:Humans
chemical_list: D003932:Heroin