1. Institute for Biomonitoring, Currenta GmbH & Co. KG; 51368 Leverkusen Germany
2. In der Stockwiese 34 85410 Haag an der Amper Germany
3. Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine; University of Erlangen-Nuremberg; Schillerstrasse 25/29 91054 Erlangen Germany
4. Department of Food Chemistry and Toxicology; Institute for Applied Biosciences; Karlsruhe Institute of Technology (KIT); Kaiserstrasse 12 76131 Karlsruhe Germany