1. Department of Mother, Child and Neonate, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
2. Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
3. Department of Obstetrics and Gynecology, Sant'Anna Hospital-ASST Lariana, Como, Italy
4. Department of Woman, Mother and Neonate, Buzzi Children’s Hospital-ASST Fatebenefratelli-Sacco Milan, Milan, Italy
5. Department of Clinical and Biological Sciences, University of Milan, Milan, Italy
6. Obstetrics and Gynecology Unit, San Carlo Hospital-ASST Santi Paolo and Carlo, Milan, Italy
7. Department of Mother and Child, ASST Vimercate, Vimercate, Italy
8. School of Medicine and Surgery, University of Milano Bicocca, Monza, Italy
9. Department of Obstetrics and Gynecology, San Paolo Hospital- ASST Santi Paolo and Carlo, Milan, Italy
10. Department of Health Sciences, University of Milan, Milan, Italy
11. Department of Obstetrics and Gynecology, Niguarda Hospital, Milan, Italy
12. Department of Obstetrics and Gynecology, Lecco Hospital, Lecco, Italy
13. Obstetrics and Gynecology Unit, Desio Hospital-ASST San Gerardo, Monza, Italy
14. Department of Obstetrics and Gynecology, Spedali Civili di Brescia, Brescia, Italy
15. Department of Clinical and Experimental Science, University of Brescia, Italy
16. Department of Woman, Mother and Neonate, Sacco Hospital-ASST Fatebenefratelli-Sacco Milan, Milan, Italy
17. Department of Obstetrics and Gynecology, University of Pavia, Pavia, Italy
18. Department of Woman and Child Health, IRCCS Foundation Policlinico San Matteo, Pavia, Italy
19. Department of Maternal Fetal Medicine, Fondazione MBBM, San Gerardo Hospital, Monza, Italy
20. Obstetrics and Gynecology Unit, P.O. Macedonio Melloni-ASST Fatebenefratelli-Sacco, Milan, Italy
21. Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy