1. GSF–National Research Center for Environment and Health, Institute of Epidemiology, Neuherberg, Germany
2. INSERM, Institut National de la Santé et de la Recherche Médicale, UMR822, Le Kremlin-Bicêtre, France
3. INED, Institut National des Etudes Démographiques, Paris, France
4. Univ Paris-Sud, Le Kremlin-Bicêtre, France
5. WZU–Environmental Science Center, University Augsburg, Augsburg, Germany
6. Kinderklinik und Kinderpoliklinik in Dr. v. Hauner’schen Kinderspital, Munich, Germany
7. UFZ–Umwelt Forschungszentrum, Human Exposure Research and Epidemiology, Leipzig, Germany
8. University of Leipzig, Medical Faculty, Leipzig, Germany
9. Ludwig-Maximilians University of Munich, Institute of Medical Data Management, Biometrics and Epidemiology, Munich, Germany