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. Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital University Hospital of Southern Denmark Kolding Denmark
4. Fondazione Toscana Gabriele Monasterio Pisa Italy
5. Department of Woman‐Mother‐Child University Medical Center CHUV Lausanne Switzerland
6. Public Health Division of Gipuzkoa Biodonostia Research Institute Donostia‐San Sebastian Spain
7. Neonatal Intensive Care Unit, Paediatric Section, IMER Registry (Emilia Romagna Registry of Birth Defects), Department of Medical Sciences University of Ferrara Ferrara Italy
8. Epidemiology Department National Institute of Health Doutor Ricardo Jorge Lisbon Portugal
9. National Congenital Anomaly and Rare Disease Registration Service, National Disease Registration Service, NHS Digital Leeds UK
10. Rare Diseases Research Unit Foundation for the Promotion of Health and Biomedical Research in the Valencian Region Valencia Spain
11. Department of Genetics, University Medical Center Groningen University of Groningen Groningen The Netherlands
12. Department Health Sciences, College of Life Sciences University of Leicester Leicester UK
13. Malta Congenital Anomalies Registry, Directorate for Health Information and Research G'Mangia Malta
14. Medical University of Graz Graz Austria
15. European Commission, Joint Research Centre (JRC) Ispra Italy
16. National Perinatal Epidemiology Unit, Nuffield Department of Population Health University of Oxford Oxford UK
17. Université Paris Cité, Inserm, INRAE, Centre for Research in Epidemiology and StatisticS (CRESS), Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé Paris France
18. South West Congenital Anomaly Register, Bristol Medical School University of Bristol Bristol UK
19. Department of Public Health, HSE South East, Lacken Kilkenny Ireland
20. Provincial Institute of Hygiene Antwerp Belgium
21. Department of Public Health, HSE South (Cork & Kerry) Cork Ireland
22. 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
23. Register of Congenital Malformations Isle of Reunion Island, CHU St Pierre, la Reunion Reunion France
24. Population Health Sciences Institute Newcastle University Newcastle upon Tyne UK
25. Malformation Monitoring Centre Saxony‐Anhalt, Medical Faculty Otto‐von‐Guericke University Magdeburg Germany
26. Brittany Registry of Congenital Anomalies, CHU Rennes, Univ Rennes, Inserm, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail) – UMR_S 1085 Rennes France
27. 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
28. Congenital Anomaly Register & Information Service for Wales (CARIS), Public Health Wales Swansea UK
29. University Hospital Southampton, Faculty of Medicine and Wessex Clinical Genetics Service, Princess Anne Hospital Southampton UK
30. Epidemiology Unit, Department of Preventive Medicine Poznan University of Medical Sciences Poznan Poland
31. OMNI‐Net Ukraine Birth Defects Program and Rivne Regional Medical Diagnostic Center Rivne Ukraine