1. Division of Endocrinology, Diabetes and Metabolism, Center for Rare Pediatric Endocrine Diseases, First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, “Agia Sophia” Children’s Hospital, Athens, Greece
2. Division of Endocrinology and Diabetes, Department of Pediatrics, Medical School, University of Patras, Patras, Greece
3. First Pediatric Department, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece