Mass Spectra and Cross-Contributions of Ion Intensity Between the Analytes and Their Isotopically Labeled Analogs -- Common Opioids and Their Derivatives.Published in:Forensic Science Review, 2008, v. 20, n. 2, p. 75By:Chen, B.-G.;Wu, M.-Y.;Liu, R. H.;Wang, S.-M.;Lewis, R. J.;Ritter, R. M.;Canfield, D. V.Publication type:Article