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Concheiro M, Gray TR, Shakleya DM, Huestis MA. High-throughput simultaneous analysis of buprenorphine, methadone, cocaine, opiates, nicotine, and metabolites in oral fluid by liquid chromatography tandem mass spectrometry. Analytical and Bioanalytical Chemistry. 2010 Jul 23;398(2):915–24. doi: 10.1007/s00216-010-3903-5. |