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