1. Department of Obstetrics and Gynaecology, ASUFC; Ospedale di Sant'Antonio, San Daniele del Friuli, Italy
2. Obstetrics and Gynaecology, Department of Medical Area (DAME), University of Udine, Udine, Italy
3. Department of Obstetrics and Gynaecology, ASUFC; Ospedale Santa Maria della Misericordia, Udine, Italy