Conference ProceedingsAn Application of Speciated Isotope Dilution Mass Spectrometry (SIDMS) for Simultaneous Drug Quantitation of Gamma-Hydroxybutyric Acid (GHB) and Gamma-Butyrolactone (GBL) in Urine and Blood MatricesPresenting section:Toxicology2011Seither, Joshua, Dover DE; Kingston, H.M. (Skip), Pittsburgh PA; Fahrenholz, Timothy, Pittsburgh PAView the paperToxicology