1. Friedrich-Alexander University Erlangen-Nürnberg (FAU); Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine; 91054 Erlangen Schillerstraße 25 and 29 Germany
2. BASF SE; Corporate Health Management, FEH/CB; 67056 Ludwigshafen Germany
3. Friedrich-Alexander University Erlangen-Nürnberg (FAU); Chair of the Working Group “Setting of Threshold Limit Values in Biological Materials”, Deutsche Forschungsgemeinschaft, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine; 91054 Erlangen Schillerstraße 25 and 29 Germany
4. Karlsruhe Institute of Technology (KIT); Chair of the Permanent Senate Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area, Deutsche Forschungsgemeinschaft, Department of Food Chemistry and Toxicology, Institute for Applied Biosciences; 76131 Karlsruhe Adenauerring 20a, Geb. 50.41 Germany