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Alves SP, Bessa RJ.Alves SP, et al. Among authors: bessa rj.J Chromatogr A. 2009 Jun 26;1216(26):5130-9. doi: 10.1016/j.chroma.2009.04.079. Epub 2009 May 3.J Chromatogr A. 2009.PMID: 19446820