Vincenzo Berghella MDDirector, Maternal-Foetal Medicine Division and Fellowship Program, Professor, Department of Obstetrics and Gynaecology, Thomas Jefferson University, Philadelphia, USAGabriele Saccone MDResident, Unit of Obstetrics and Gynaecology, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, ItalyTullio Ghi MD PhDProfessor, Department of Medicine and Surgery, Unit of Obstetrics and Gynaecology, Ospedale Maggiore, University of Parma, ItalyAmanda Roman MDAssistant Professor, Maternal Foetal Medicine Division, Department of Obstetrics and Gynaecology, Thomas Jefferson University, Philadelphia, USA