1. Academic Unit of Obstetrics and Gynaecology, IRCCS Ospedale Policlinico San Martino , Genova, Italy
2. Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (Dinogmi), University of Genova , Italy
3. Obstetrics and Gynecology Unit, Department of General Surgery and Medical Surgical Specialties, University of Catania , Catania, Italy
4. Unit of Obstetrics and Gynecology, Gaslini Institute , Genova, Italy
5. Department of Gynecologic Oncology, IRCCS National Cancer Institute , Milan, Italy