1. Analytical BioGeoChemistry Research Unit, Helmholtz Center Munich─German Research Center for Environmental Health GmbH, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
2. Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
3. Department of Neurosciences, Azienda Ospedaliero Universitaria di Modena, 41126 Modena, Italy
4. CREAGEN Research Center of Environmental, Genetic and Nutritional Epidemiology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy