1. Obstetrics and Gynecology, University Federico II, Naples, Italy
2. Department of Obstetrics and Gynecology, University of Campania “Luigi Vanvitelli”, Naples, Italy
3. Obstetrics and Gynecology, Obstetrics and Gynecology Unit, University of Modena and Reggio Emilia, Modena, Italy
4. Laboratory of Hemostasis and Thrombosis, AOU Federico II, Naples, Italy