1. Institute of Epidemiology I; Helmholtz Zentrum München - German Research Center for Environmental Health; Neuherberg Germany
2. Division of Metabolic and Nutritional Medicine; Dr. von Hauner Children's Hospital; Ludwig-Maximilians-University of Munich; Munich Germany
3. Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine; Inner City Clinic; University Hospital of Munich (LMU); Munich Germany
4. Research Unit of Molecular Epidemiology; Institute of Epidemiology II; Helmholtz Zentrum München - German Research Center for Environmental Health; Neuherberg Germany
5. Division of Paediatric Gastroenterology and Hepatology; Dr. von Hauner Children's Hospital Munich; Ludwig-Maximilians-University of Munich; Munich Germany
6. Department of Environmental Immunology/Core Facility Studies; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
7. Department of Pediatrics; Technical University of Munich; Munich Germany
8. Centre for Health and Society; Institute of Occupational, Social and Environmental Medicine; Heinrich-Heine University of Düsseldorf; Düsseldorf Germany
9. Research Institute; Department of Pediatrics; Marien-Hospital Wesel; Wesel Germany