1. Prenatal Diagnostic Service, Division of Obstetrics and Gynecology, Guastalla Civil Hospital, AUSL Reggio, Emilia, Italy.
2. Prenatal Diagnostic Service, Department of Obstetrics and Gynecology, Policlinic Hospital “Le Scotte,” University of Siena, Italy.
3. Department of Pediatric, Obstetric, and Reproductive Medicine, University of Siena, Italy.
4. Service of Human Pathology and Oncology, Pathologic Anatomy Unit, Policlinic Hospital “Le Scotte,” University of Siena, Italy.
5. Neonatal Intensive Care Unit, Policlinic Hospital “Le Scotte,” University of Siena, Italy.