1. Department of Medical and Surgical Sciences of the Mother, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
2. Center for Reproductive Medicine, Casa di Cura Privata Villa Mafalda, Rome, Italy
3. Department of Obstetrician and Gynecology, Saint Camillus International University of Health and Medical Sciences (Unicamillus), Rome, Italy