1. Department of Obstetrics & Gynecology, Guastalla Civil Hospital, AUSL Reggio Emilia; Italy
2. Department of Obstetrics & Gynecology "C. Poma" Hospital, Mantua; Italy
3. IRCCS Galliera Hospital, Laboratory of Human Genetics, Genoa; Italy
4. IRCCS “Santa Maria Nuova” Hospital, Diagnostic Imaging, Reggio Emilia; Italy
5. IRCCS “Santa Maria Nuova” Hospital, Human Pathology, Reggio Emilia; Italy
6. Policlinic Hospital "Santa Maria alle Scotte", University of Siena, Neonatal Intensive Care Unit Siena; Italy