title: Methadone kills more people than heroin. A reply to Newcombe.
authors.forename: A
authors.initials: A
authors.lastname: Byrne
mesh_terms: D003932:Heroin / Q000009:adverse effects*; D006801:Humans; D008691:Methadone / Q000009:adverse effects*
chemical_list: D003932:Heroin; D008691:Methadone