title: Lack of hydrocodone and hydromorphone interference in the GC-MS detection of morphine and codeine.
authors.forename: K E
authors.initials: KE
authors.lastname: Brooks
authors.forename: N B
authors.initials: NB
authors.lastname: Smith
mesh_terms: D003061:Codeine / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006853:Hydrocodone / Q000009:adverse effects* / Q000302:isolation & purification*; D004091:Hydromorphone / Q000009:adverse effects* / Q000302:isolation & purification*; D009020:Morphine / Q000032:analysis*
chemical_list: D006853:Hydrocodone; D009020:Morphine; D004091:Hydromorphone; D003061:Codeine