1. Department of Medical Genetics, Medical School; National and Kapodistrian University of Athens; Athens Greece
2. Research Institute for the Study of Genetic and Malignant Diseases in Childhood; “Aghia Sophia” Children's Hospital; Athens Greece
3. 1st Department of Pediatrics, Medical School; National and Kapodistrian University of Athens; Athens Greece
4. Department of Genetics; “Alexandra” University Maternal Hospital; Athens Greece