1. Institute of Occupational, Social and Environmental Medicine University Medical Center Johannes Gutenberg University Mainz Germany
2. Institute of Medical Biostatistics, Epidemiology and Informatics Division Biostatistics and Bioinformatics University Medical Center Johannes Gutenberg University Mainz Germany
3. Institute for Occupational Safety of the German Social Accident Insurance Sankt Augustin Germany
4. BGHM (Expert Committee Woodworking and Metalworking of the German Insurance Association) Mainz Germany