1. Department of Obstetrics and Gynaecology; Catholic University; Rome Italy
2. Department of Obstetrics and Gynaecology; Pia Fondazione “Cardinale G. Panico”; Tricase Italy
3. Department of Visceral and Gynaecologic Surgery; Diaconesses Hospital; Paris France
4. Unité de Recherche; Université Paris Descartes; Paris France
5. Department of Obstetrics and Gynecology; University of Eastern Piedmont “A. Avogadro”; Novara Italy