1. Unit of Epidemiology of Rare diseases and Congenital anomalies Institute of Clinical Physiology National Research Council Pisa Italy
2. Children's Hospital Zagreb Centre of Excellence for Reproductive and Regenerative Medicine Medical School University of Zagreb Zagreb Croatia
3. Fondazione Toscana Gabriele Monasterio Pisa Italy
4. Department of Woman‐Mother‐Child University Medical Center CHUV Lausanne Switzerland
5. Neonatal Intensive Care Unit, Paediatric Section, IMER Registry (Emilia Romagna Registry of Birth Defects) Dep. of Medical Sciences University of Ferrara Ferrara Italy
6. Epidemiology Department National Institute of Health Doutor Ricardo Jorge Lisbon Portugal
7. Rare Diseases Research Unit Foundation for the Promotion of Health and Biomedical Research in the Valencian Region Valencia Spain
8. University Medical Center Groningen Department of Genetics University of Groningen Groningen the Netherlands
9. Department Health Sciences College of Life Sciences University of Leicester Leicester UK
10. Malta Congenital Anomalies Registry Directorate for Health Information and Research G'Mangia Malta
11. Medical University of Graz Graz Austria
12. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
13. Division of Mental and Physical Health Norwegian Institute of Public Health Bergen Norway
14. National Perinatal Epidemiology Unit Nuffield Department of Population Health University of Oxford Oxford UK
15. Department of Medical Genetics Poznan University of Medical Sciences Poznan Poland
16. European Commission Joint Research Centre (JRC) Ispra Italy
17. Epidemiology and Statistics Research Center ‐ CRESS INSERM Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé) Université de Paris Paris France
18. South West Congenital Anomaly Register Bristol Medical School University of Bristol Bristol UK
19. Public Health Division of Gipuzkoa Biodonostia Research Institute Donostia‐San Sebastian Spain
20. Department of Public Health HSE South East Lacken, Kilkenny Ireland
21. Provincial Institute of Hygiene Antwerp Belgium
22. Department of Public Health HSE South (Cork & Kerry) Ireland
23. Auvergne registry of congenital anomalies (CEMC‐Auvergne) Department of clinical genetics Centre de Référence des Maladies Rares University Hospital of Clermont‐Ferrand Clermont‐Ferrand France
24. Register of Congenital Malformations Isle of Reunion Island CHU St Pierre la Reunion France
25. Population Health Sciences Institute Newcastle University/National Congenital Anomaly and Rare Disease Registration Service (NCARDRS) Public Health England Newcastle upon Tyne UK
26. Malformation Monitoring Centre Saxony‐Anhalt Medical Faculty Otto‐von‐Guericke University Magdeburg Germany
27. Brittany Registry of Congenital Malformations CHU Rennes Univ RennesInsermEHESP, Irset (Institut de recherche en santé, Environnement et Travail) ‐ UMR_S 1085 Rennes France
28. French West Indies Registry Registre des Malformations des Antilles (REMALAN) Maison de la Femme de la Mère et de l’Enfant University Hospital of Martinique Fort‐de‐France France
29. Congenital Anomaly Register & Information Service for Wales (CARIS) Public Health Wales Swansea UK
30. Wessex Clinical Genetics Service University Hospitals Southampton Southampton UK
31. OMNI‐Net for Children and Khmelnytsky City Children’s Hospital Khmelnytsky Ukraine
32. Paediatric Department Hospital Lillebaelt Kolding Denmark