1. Department of PharmacoTherapy, Epidemiology and Economics (PTEE) / Division: Groninger Research Institute of Pharmacy (GRIP); University of Groningen; Groningen Belfast UK
2. Department of Medical Genetics and Reproductive Health; Children's Hospital Zagreb, Medical School University of Zagreb; Zagreb Croatia
3. Institute of Nursing & Health Research; Ulster University; Northern Ireland
4. Department of Woman-Mother-Child; University Hospital Center CHUV; Lausanne Switzerland
5. Congenital Anomaly Register and Information Service for Wales; Public Health UK NHS Trust; Swansea Wales UK
6. Directorate for Health Information and Research; Tal-Pietà Malta
7. Division of Mental and Physical Health, Norwegian Institute of Public Health and Department of Global Public Health and Primary Care; University of Bergen; Bergen Norway
8. Malta Congenital Anomalies Register; Directorate for Health Information and Research; G'Mangia Malta
9. Province of Antwerp Department of Environment; Provincial Institute of Hygiene; Antwerp Belgium
10. IMER Registry, Center for Clinical and Epidemiological Research; University of Ferrara and Azienda Ospedaliero Universitario di Ferrara; Ferrara Italy
11. Department of Public Health; Health Service Executive - South; Ireland
12. Tuscany Registry of Congenital Defects; Institute of Clinical Physiology-National Research Council/Fondazione Toscana “Gabriele Monasterio”; Pisa Italy
13. Malformation Monitoring Centre Saxony-Anhalt, Medical Faculty; Otto-von-Guericke University Magdeburg; Magdeburg Germany
14. Center for Human Genetics; Institut de Pathologie et de Génétique; Charleroi Belgium
15. Department of Genetics; University of Groningen, University Medical Centre Groningen; Groningen the Netherlands
16. Department of Pediatrics, Birth Registry Mainz Model; University Medical Center of Mainz; Mainz Germany
17. Department of Preventive Medicine, Epidemiology Unit; Poznan University of Medical Sciences; Poznan Poland
18. INSERM UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center of Research in Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy; Paris Descartes University; Paris France
19. Paediatric Department; Hospital Lillebaelt Kolding; Kolding Denmark