1. Neonatal Unit University Hospital of Wales Cardiff UK
2. CARIS (Congenital Anomaly Register & Information Services), Public Health Wales Singleton Hospital Swansea UK
3. Medical Statistics Population Health Research Institute, St George's, University of London London UK
4. Department of Genetics, Eurocat Northern Netherlands University of Groningen, University Medical Center Groningen Groningen The Netherlands
5. Department of Epidemiology Emory University Rollins School of Public Health Atlanta Georgia
6. BDESB (Birth Defects Epidemiology and Surveillance Branch), Texas Department of State Health Services Austin Texas
7. National Board of Health and Welfare Stockholm Sweden
8. REMAPAR, PARis REgistry of Congenital Malformations, Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, DHU Risks in pregnancy Paris Paris Descartes University France
9. ECLAMC Latin American Collaborative Study of Congenital Malformations, Buenos Aires Argentina
10. Division of Congenital and Developmental Disorders National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention Atlanta Georgia
11. Carter Consulting, Incorporated Atlanta Georgia
12. Utah Birth Defect Network, Bureau of Children with Special Healthcare Needs, Division of Family Health and Preparedness Utah Department of Health Salt Lake City Utah
13. ECEMC Spanish Collaborative Study of Congenital Malformations Madrid Spain
14. Department of Medical Genetics Thomayer Hospital Prague Czech Republic
15. Tuscany Registry of Congenital Defects (RTDC) Institute of Clinical Physiology, National Research Council/Fondazione Toscana Gabriele Monasterio Pisa Italy
16. Department of Epidemiology College of Public Health, University of Arkansas for Medical Sciences and Arkansas Reproductive Health Monitoring System (ARHMS) Little Rock Arkansas
17. Medical Faculty Otto‐von‐Guericke University Magdeburg Malformation Monitoring Centre Saxony‐Anhalt Magdeburg Germany
18. National Network of Congenital Anomalies of Argentina (RENAC), ANLIS, National Ministry of Health National Center of Medical Genetics Ciudad de Buenos Aires Argentina
19. RYVEMCE Registry and Epidemiological Surveillance of External Congenital Malformations Mexico City Mexico
20. Slovak Teratology Information Center, Faculty of Public Health Slovak Medical University Bratislava Slovak Republic
21. OMNI‐Net UBDP (Ukraine Birth Defects Prevention Program), Rivne Ukraine
22. Congenital Malformations Surveillance Programme of Bogotà Pontificia Universidad Javeriana Bogota D.C. Colombia
23. Faculty of Health Sciences, Congenital Malformations Surveillance Programme of Cali Pontificia Universidad Javeriana—Cali Cali Colombia
24. Registro DAN (Registro de Defectos al Nacimiento), Departamento de Genética Universidad Autónoma de Nuevo León Monterrey Mexico
25. RMCL Lombardy Italy
26. IBDSP (Israel Birth Defect Surveillance and Research program), Tel Aviv Israel
27. Directorate for Health Information and Research Malta Congenital Anomalies Registry (MCAR) Guardamangia Malta
28. School of Medicine, Tabriz University of Medical Sciences TROCA (Tabriz Registry of Congenital Anomalies), Tabriz Iran