1. Hemophilia Center and Hemostasis and Thrombosis Unit Aghia Sophia Children's Hospital Athens Greece
2. Division of Infectious Diseases, First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital National and Kapodistrian University of Athens Athens Greece
3. First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital National and Kapodistrian University of Athens Athens Greece
4. Division of Endocrinology, Diabetes and Metabolism, First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital National and Kapodistrian University of Athens Athens Greece