title: Response to claim of error by drug enforcement administration (DEA) chemist in calculating quantity of methadone synthesized from precursor chemicals.
authors.forename: A P
authors.initials: AP
authors.lastname: Hatcher
authors.forename: C R
authors.initials: CR
authors.lastname: Ryan
mesh_terms: D002626:Chemistry, Pharmaceutical / Q000331:legislation & jurisprudence; D008691:Methadone / Q000138:chemical synthesis*; D008956:Models, Chemical; D014481:United States
chemical_list: D008691:Methadone