1. Department of Epidemiology Emory University Rollins School of Public Health Atlanta Georgia USA
2. Malformation Monitoring Centre Saxony‐Anhalt, Medical Faculty Otto‐von‐Guericke‐University Magdeburg Germany
3. Institute for Biometrics and Medical Informatics, Medical Faculty Otto‐von‐Guericke‐University Magdeburg Germany
4. Department of Genetics, University of Groningen, University Medical Center Groningen Eurocat Northern Netherlands Groningen The Netherlands
5. ECEMC (Spanish Collaborative Study of Congenital Malformations), UIAC (Unidad de Investigación sobre Anomalías Congénitas), Instituto de Investigación de Enfermedades Raras (IIER) Instituto de Salud Carlos III Madrid Spain
6. Birth Defects Epidemiology and Surveillance Branch Texas Department of State Health Services Austin Texas USA
7. Tabriz Health Services Management Research Center, School of Medicine Tabriz University of Medical Sciences Tabriz Iran
8. Division of Medical Genetics, Department of Pediatrics University of Utah School of Medicine Salt Lake City Utah USA
9. Malta Congenital Anomalies Registry Directorate for Health Information and Research Guardamangia Malta
10. National Network of Congenital Anomalies of Argentina (RENAC), National Center of Medical Genetics, National Administration of Laboratories and Health Institutes (ANLIS) National Ministry of Health Buenos Aires Argentina
11. Department of Basic Sciences of Health, School of Health Pontificia Universidad Javeriana Cali Cali Colombia
12. National Board of Health and Welfare Stockholm Sweden
13. Department of Neonatology Soroka Medical Center Beer‐Sheva Israel
14. Université de Paris, Inserm U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé) Center for Epidemiology and Statistics Sorbonne Paris Cité (CRESS) Paris France
15. ECLAMC Center for Medical Education and Clinical Research (CEMIC‐CONICET) Buenos Aires Argentina
16. Registro DAN (Registro de Defectos al Nacimiento), Departamento de Genética, Hospital Universitario Dr. José E. González Universidad Autónoma de Nuevo León Monterrey Mexico
17. International Center on Birth Defects International Clearinghouse for Birth Defects Surveillance and Research Rome Italy
18. CARIS, the Congenital Anomaly Register for Wales, Public Health Wales Singleton Hospital Swansea UK
19. RYVEMCE, Department of Genetics Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City Mexico
20. Utah Department of Health, Bureau of Children with Special Health Care Needs Utah Birth Defects Network Salt Lake City Utah USA
21. Arkansas Center for Birth Defects Research and Prevention and Arkansas Reproductive Health Monitoring System, Fay Boozman College of Public Health, Department of Epidemiology University of Arkansas for Medical Sciences Little Rock Arkansas USA
22. Institute of Clinical Physiology, National Research Council and Fondazione Toscana Gabriele Monasterio Tuscany Registry of Congenital Defects Pisa Italy
23. Department of Medical Genetics Thomayer Hospital Prague Czech Republic
24. Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Development Disabilities US Centers for Disease Control Atlanta Georgia USA
25. Slovak Teratologic Information Centre (FPH) Slovak Medical University Bratislava Slovak Republic
26. Cancer Registry Unit Fondazione IRCCS Istituto Nazionale dei Tumori Lombardy Italy
27. OMNI‐Net Ukraine Programs Rivne Ukraine
28. Human Genetics Institute, Pontificia Universidad Javeriana, Bogotá Colombia and Hospital Universitario San Ignacio Bogotá Colombia