1. Department of Radiology; School of Medicine, National and Kapodistrian University of Athens, Aretaieion Hospital; Athens Greece
2. Department of Gynaecology and Obstetrics; IASO Maternity Hospital; Athens Greece
3. Department of Fetal and Maternal Medicine, First Department of Gynaecology and Obstetrics; National and Kapodistrian University of Athens, Alexandra Hospital; Athens Greece
4. Department of Health, Epidemiology and Medical Statistics, School of Medicine; National and Kapodistrian University of Athens; Athens Greece
5. First Department of Pathology, School of Medicine; National and Kapodistrian University of Athens; Athens Greece