1. Center for Genetic Counseling and Reproductive Teratology; Maternal and Child Health Department; Garibaldi Nesima Hospital; Catania Italy
2. Congenital Anomalies and Perinatal Pathology; Maternal and Child Health Department; Garibaldi Nesima Hospital; Catania Italy
3. Human Genetic Laboratory; Galliera Hospital; Genova Italy
4. Gynecology and Obstetric Unit Maternal and Child Health Department; Garibaldi Nesima Hospital; Catania Italy