1. Institute for Medical Information Processing, Biometry, and Epidemiology - IBE, LMU Munich, Munich, Germany
2. Pettenkofer School of Public Health, Munich, Germany
3. Department of Occupational and Environmental Health, Bavarian Health and Food Safety Authority, Germany Epidemiology, Munich;
4. Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Clinical Centre of the Ludwig-Maximilians-University, Munich, Germany