1. Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany
2. Institute for Medical Information Processing, Biometry and Epidemiology, LMU Munich, Munich, Germany
3. Pettenkofer School of Public Health, Munich, Germany
4. Max Planck Institute of Empirical Aesthetics, Frankfurt am Main, Germany
5. Paediatric Department, University Hospital Carl Gustav Carus, TU Dresden, Dresden, Germany
6. Dr. v. Haunersches Kinderspital, University Hospital, LMU Munich, Munich, Germany