1. Research Department of Epidemiology and Public Health; University College London; London UK
2. Research Department of Epidemiology and Public Health; UCL Institute of Health Equity; University College London; London UK
3. Department of Epidemiology; Lazio Regional Health System; Rome Italy
4. Center for Global Health; University of Illinois College of Medicine; Chicago IL USA
5. Institute of Pediatrics, Obstetrics, and Gynecology; Kyiv Ukraine
6. Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1153; Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé); Center for Epidemiology and Statistics, Sorbonne Paris Cité; DHU Risks in Pregnancy; Paris Descartes University; Paris France
7. Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1153; Early Origin of the Child's Health and Development Team (ORCHAD); Center for Epidemiology and Statistics, Sorbonne Paris Cité; Paris Descartes University; Paris France
8. Center for Research in Environmental Epidemiology (CREAL); Barcelona Spain
9. Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP); Barcelona Spain
10. IB-Salut Menorca Health Area; Balearic Islands Spain
11. FISABIO - Universitat Jaume I - Universitat de València Joint Research Unit of Epidemiology and Environmental Health; Castellón de la Plana Spain
12. Public Health Department of Gipuzkoa; Gipuzkoa Spain
13. BIODONOSTIA Health Research Institute; San Sebastian Spain
14. First Department of Paediatrics; Aghia Sophia Children's Hospital; University of Athens; Athens Greece
15. Department of Epidemiology and Health Promotion; Public Health Service of Amsterdam; Amsterdam The Netherlands
16. Department of Public Health; Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
17. Faculty of Science; Research Centre of Toxic Compounds in the Environment (RECETOX); Masaryk University; Brno Czech Republic
18. Institute of Biostatistics & Analyses (IBA); Masaryk University; Brno Czech Republic
19. EPIUnit - Institute of Public Health; University of Porto; Porto Portugal
20. Department of Clinical Epidemiology; Predictive Medicine and Public Health; University of Porto Medical School; Porto Portugal
21. Department of Epidemiology and Biostatistics; MRC Health Protection Agency (HPE); Centre for Environment and Health; School of Public Health; Imperial College London; London UK
22. Biocenter Oulu; University of Oulu; Oulu Finland
23. Unit of Primary Care; Oulu University Hospital; Oulu Finland
24. Faculty of Medicine; Center for Life Course Epidemiology; University of Oulu; Oulu Finland
25. Institute of Health Sciences; University of Oulu; Oulu Finland
26. Division of Pediatrics; Department of Clinical and Experimental Medicine; Linköping University; Linköping Sweden
27. Department of Medicine and Health, Community Medicine/General Practice Faculty of Health Sciences; Linköping University; Linköping Sweden