1. NICU, “Fondazione IRCCS Ca’ Granda—Ospedale Maggiore Policlinico,” University Department of Mother and Infant Sciences, Università degli Studi di Milano, Milan, Italy
2. Unit of Obstetrics and Gynecology, Department of Clinical Sciences, Ospedale Luigi Sacco, University of Milan, Milan, Italy
3. Center for Fetal Research Giorgio Pardi, University of Milan, Milan, Italy
4. Paediatric Radiology Department–Ospedale dei Bambini Vittore Buzzi ICP, Milan, Italy