1. Department of Endocrinology, 424 General Military Hospital, Thessaloniki, Greece
2. First Department of Pharmacology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Endocrinology Unit, 1st Propaedeutic Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
4. Department of Endocrinology and Diabetes, 251 Hellenic Air Force & VA General Hospital, Athens, Greece