^aNational Hellenic Research Foundation, Institute of Biological Research and Biotechnology, 48 Vassileos Constantinou Avenue, Athens 11635, Greece

^bEuropean Centre for Ecotoxicology and Toxicology of Chemicals, Avenue E. Van Nieuwenhuyse 4 Box 6, 1160 Brussels, Belgium

^cUniversity of Aarhus, Department of Environmental and Occupational Medicine, Vennelyst Boulevard 6, 8000 Aarhus, Denmark

^dCancer Biomarkers and Prevention Group, Biocentre, University of Leicester, University Road, Leicester LE1 7RH, UK

^eVrije Universiteit Brussel, Laboratory of Cell Genetics, Pleinlaan 2, 1050 Brussels, Belgium

^fMaastricht University, Department of Health Risk Analyses and Toxicology, Faculty of Health Sciences, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands

^gUniversity of Copenhagen, Institute of Public Health, Panum Institute, Blegdamsvej 3, 2200 Copenhagen, Denmark

^hBayer, Corporate Center, Governmental & Product Affairs, Building 9115, 51368 Leverkusen, Germany

ⁱDegussa, Product Stewardship, Bennigsen-Platz, 40474 Düsseldorf, Germany

^jEuropean Centre for Ecotoxicology and Toxicology of Chemicals, Avenue E. Van Nieuwenhuyse 4 Box 6, 1160 Brussels, Belgium