1. Department of Obstetrics and Gynecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), AUSL Reggio Emilia, 42100 Reggio Emilia, Italy
2. Preconceptional and Prenatal Pathophysiology, Department of Obstetrics and Gynecology, E.O. Ospedali Galliera, 16128 Genoa, Italy
3. Department of Obstetrics and Gynecology, Regional Prenatal Diagnostic 2 Level Center, ASUR Loreto Hospital, 60025 Loreto, Italy
4. Department of Obstetrics and Gynecology, Fondazione Policlinico Tor Vergata, University of Tor Vegata, 00133 Rome, Italy
5. Department of Pathology, Santa Maria Nuova Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), AUSL Reggio Emilia, 42100 Reggio Emilia, Italy
6. Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, FL 33136, USA