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López-Nicolás JM, Núñez-Delicado E, Pérez-López AJ, Barrachina AC, Cuadra-Crespo P.López-Nicolás JM, et al.J Chromatogr A. 2006 Dec 1;1135(2):158-65. doi: 10.1016/j.chroma.2006.09.013. Epub 2006 Nov 2.J Chromatogr A. 2006.PMID: 17083948