1. Third Department of Pediatrics, Endocrinology Unit, School of Medicine, “Attikon” University Hospital, National and Kapodistrian University of Athens, Athens, Greece;
2. First Department of Pediatrics, Childhood Obesity Clinic, School of Medicine, Aghia Sophia Children’s Hospital, National and Kapodistrian University of Athens, Athens, Greece;
3. Department of Clinical Biochemistry, “Aghia Sophia” Children’s Hospital, Athens, Greece;
4. Second Department of Obstetrics and Gynecology, Endocrine Unit, Aretaieion Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece;
5. Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel