1. Department of Mother and Child Health Azienda USL Toscana Nord Ovest Pisa Italy
2. Unit of Epidemiology Regional Health Agency of Tuscany Florence Italy
3. Centre for Behavioral Sciences and Mental Health Istituto Superiore di Sanità Rome Italy
4. Department of Epidemiology and Care Intelligence Regional Agency for Health and Social Affair of Puglia Bari Italy
5. Department of Maternal and Child Health General Directorate for Health Naples Italy
6. Department of Public Health and Paediatric Sciences University of Turin Turin Italy
7. Area Rete Ospedaliera, Lazio Regional Authority Rome Italy
8. Pianificazione Programmazione e Controllo Direzionale, Azienda Regionale di Coordinamento della Salute Udine Italy
9. Welfare General Directorate Milan Italy
10. Unit of Primary Care Regional Health Authority of Emilia‐Romagna Bologna Italy
11. Department of Clinical and Evaluative Epidemiology Health Service of Trento Trento Italy
12. Institute for Biomedical Research and Innovation, National Research Council Palermo Italy
13. Department of Health Activities and Epidemiological Observatory Regional Health Authority Palermo Italy
14. Birth Registry, Coordinating Centre for Rare Diseases Padua Italy
15. National Centre for Disease Prevention and Health Promotion Istituto Superiore di Sanità Rome Italy
16. Department of Biomedicine and Prevention University of Rome Tor Vergata Rome Italy
17. Unit of Clinical Governance Azienda USL ‐ IRCCS di Reggio Emilia Reggio Emilia Italy
18. Department of Epidemiology ASL TO3 Piedmont Region Turin Italy