1. Department of Endocrinology and Diabetes 251 Hellenic Air Force and VA General Hospital Athens Greece
2. LCH Adult Clinic, Department of Medical Research 251 Hellenic Air Force and VA General Hospital Athens Greece
3. Εndocrinology Unit, First Department of Propaedeutic and Internal Medicine National and Kapodistrian University of Athens, Medical School Athens Greece
4. Division of Nuclear Medicine Biomedical Research Foundation of the Academy of Athens Athens Greece
5. 2nd Department of Radiology, Nuclear Medicine Section Attikon University Hospital of Athens Chaidari Greece
6. Department of Endocrinology 424 General Military Hospital Thessaloniki Greece
7. Hellenic Society for the Study of Bone Metabolism Athens Greece