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Lewis, R.J.; Johnson, R.D.; Hattrup, R.A., Simultaneous analysis of Thebaine, 6-MAM and six abused opiates in postmortem fluids and tissues using Zymark® automated solid-phase extraction and gas chromatography-mass spectrometry, J. Chromatogr. B, 2005, 822, 1-2, 137-145, https://doi.org/10.1016/j.jchromb.2005.05.031 . [all data]