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Simó C, Moreno-Arribas MV, Cifuentes A.Simó C, et al.J Chromatogr A. 2008 Jun 27;1195(1-2):150-6. doi: 10.1016/j.chroma.2008.05.004. Epub 2008 May 10.J Chromatogr A. 2008.PMID: 18508068