Conference ProceedingsAnalysis of Hydrocodone, Hydromorphone, and Norhydrocodone in Urine Using Liquid Chromatography - Tandem Mass Spectrometry (LC/MS/MS)Presenting section:Toxicology2011Valtier, Sandra, Lackland AFB TX; Bebarta, Vikhyat S., Lackland AFB TX; LaBoone, Richard, Lackland AFB TXView the paperToxicology