1. University Medical Center Göttingen; Institute for Occupational, Social and Environmental Medicine; 37073 Göttingen Waldweg 37 B Germany
2. Friedrich-Alexander University Erlangen-Nürnberg (FAU); Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine; 91054 Erlangen Schillerstraße 25 and 29 Germany
3. Institute for Applied Biosciences; Karlsruhe Institute of Technology (KIT); Department of Food Chemistry and Toxicology; 76131 Karlsruhe Adenauerring 20a, Geb. 50.41 Germany