1. Foetal Medicine Unit, Buzzi Children's Hospital, ASST Fatebenefratelli Sacco, University of Milan , Milan , Italy
2. Medical Genetics Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico , Milan , Italy
3. Surgical and Molecular Pathology Unit , San Paolo Hospital , Milan , Italy
4. Department of Pediatric Radiology and Neuroradiology , Buzzi Children's Hospital , ASST Fatebenefratelli Sacco , Milan , Italy