1. Department of Obstetrics and Gynecology, “Filippo Del Ponte” Hospital, University of Insubria, Varese, Italy
2. Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (Dinogmi), University of Genova, Genova, Italy
3. Academic Unit of Obstetrics and Gynaecology, IRCCS Ospedale Policlinico San Martino, Genova, Italy
4. Department of Obstetrics and Gynecology, AOUI Verona, University of Verona, Verona, Italy