1. Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples “Federico II”, Naples, Italy;
2. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Einstein Medical Center, Phila, PA, USA;
3. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College of Thomas Jefferson University, Phila, PA, USA