1. State Institute of Health I, Bavarian Health and Food Safety Authority, Erlangen, Germany
2. Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
3. Department of Health Security, Finnish Institute of Health and Welfare, Kuopio, Finland
4. Clinical Trial Center Würzburg, University Hospital Würzburg, Würzburg, Germany
5. Bavarian State Ministry of the Environment and Consumer Protection, Munich, Germany
6. Pettenkofer School of Public Health, University of Munich, Munich, Germany
7. Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Berlin, Germany