1. Department of Obstetrics and Gynecology, "Filippo Del Ponte" Hospital, University of Insubria, Varese, Italy
2. Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Kiel, Germany
3. Department of Obstetrics and Gynaecology, Ege University, Faculty of Medicine, İzmir, Turkey
4. Department of Stem Cell, Ege University, Institute of Health Sciences, İzmir, Turkey
5. Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Lübeck, Germany
6. Unit of Gynecology and Obstetrics, Department of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy
7. Department of Gynecology, Madre Fortunata Toniolo Clinic, Bologna, Italy