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1 INRA, UMR 1019, Human Nutrition Unit, Centre de Recherche Auvergne-Rhone-Alpes, F-63122 Saint-Genès-Champanelle, France. Electronic address: christine.morand@clermont.inra.fr.
2 Heinrich-Heine-Universitaet Duesseldorf, Institute for Biochemistry and Molecular Biology I, D-40225 Duesseldorf, Germany. Electronic address: sies@uni-duesseldorf.de.
1 INRA, UMR 1019, Human Nutrition Unit, Centre de Recherche Auvergne-Rhone-Alpes, F-63122 Saint-Genès-Champanelle, France. Electronic address: christine.morand@clermont.inra.fr.
2 Heinrich-Heine-Universitaet Duesseldorf, Institute for Biochemistry and Molecular Biology I, D-40225 Duesseldorf, Germany. Electronic address: sies@uni-duesseldorf.de.