1. Department of Endocrinology, “Hippokration” General Hospital of Thessaloniki, Thessaloniki, Greece
2. Endocrinology and Metabolic Diseases Research Laboratory, School of Medicine, University of Thessaly, Biopolis, Larissa, Greece
3. Second Medical Clinic, Medical School, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece