1. Department of Woman and Child Health, University of Padua, Padua, Italy
2. Department of Obstetrics and Gynecology, University of Verona, Verona, Italy
3. Department of Obstetrics and Gynecology, University of Catanzaro, Catanzaro, Italy
4. Department of Neurosciences and Reproductive Science, University Federico II of Naples, Naples, Italy
5. Department of Laboratory Medicine, University of Padua, Padua, Italy