title: Does precursor regulation make a difference?
authors.forename: Peter
authors.initials: P
authors.lastname: Reuter
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Caulkins
mesh_terms: D004335:Drug and Narcotic Control / Q000331:legislation & jurisprudence*; D004809:Ephedrine; D006801:Humans; D007880:Legislation, Drug; D008694:Methamphetamine; D019966:Substance-Related Disorders / Q000517:prevention & control*
chemical_list: D008694:Methamphetamine; D004809:Ephedrine