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 Behavioural 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 Public Health and Paediatric Sciences University of Turin Turin Italy
6. Unit of Clinical Governance Azienda USL – IRCCS di Reggio Emilia San Giovanni Rotondo Italy
7. Pianificazione, Programmazione e Controllo Direzionale Azienda Regionale di Coordinamento della Salute Udine Italy
8. Welfare General Directorate Milan Italy
9. Birth Registry, Coordinating Centre for Rare Diseases Veneto Region Padua Italy
10. Area rete ospedaliera Lazio Regional Authority Rome Italy
11. Department of Clinical and Evaluative Epidemiology Health Service of Trento Trento Italy
12. Department of Maternal and Child Health General Directorate for Health Campania Region Naples Italy
13. Institute for Biomedical Research and Innovation National Research Council Palermo Italy
14. Department of Health Activities and Epidemiological Observatory Regional Health Authority, Sicilian Region Palermo Italy