1 Clinic of Obstetrics and Gynecology, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genova, Genova, Italy.
2 Clinic of Obstetrics and Gynecology, Department of Obstetrics and Gynecology, University of Pisa, Pisa, Italy.