1. Department of Endocrinology and Diabetes and Department of Medical Research, 251 Hellenic Air Force & VA General Hospital, 11525, Athens,Greece
2. Center for Bone Quality, Department of Internal Medicine, section Endocrinology, Leiden University Medical Center, 9600 2300 RC, Leiden,The Netherlands
3. First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, 54124, Thessaloniki,Greece
4. Endocrinology Unit, 1st Department of Propaedeutic and Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, 10679, Athens,Greece
5. Department of Endocrinology, 424 General Military Hospital, 56429, Thessaloniki,Greece