1. Endocrine Unit, First Department of Pediatrics, Athens University School of Medicine, Athens, Greece.
2. Department of Endocrinology and Metabolism “Evgenidion” Hospital, Athens University School of Medicine, Athens, Greece.
3. First Department of Radiology, Athens University School of Medicine, Athens, Greece.
4. Department of Clinical Biochemistry, “Aghia Sophia” Children's Hospital Athens, Athens, Greece.