1. Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine; Sidney Kimmel Medical College of Thomas Jefferson University; Philadelphia PA USA
2. Department of Obstetrics and Gynecology; Catholic University of Sacred Heart; Rome Italy
3. Department of Obstetrics and Gynecology; Lehigh Valley Health Network; Allentown PA USA
4. Kings College Hospital; London UK
5. Department of Obstetrics and Gynecology; Showa University Koto Toyosu Hospital; Tokyo Japan
6. Department of Obstetrics and Gynecology; Dr. Horacio E. Oduber Hospital; Oranjestad Aruba
7. Harris Birthright Research Centre for Fetal Medicine; Kings College Hospital; London UK
8. Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine; University of Naples Federico II; Naples Italy