1. Department of Endocrinology; Athens Naval & VA Hospital; Athens Greece
2. Department of Endocrinology; Theagenio Cancer Hospital; Thessaloniki Greece
3. Department of Endocrinology and Metabolic Diseases; University of Thessaly; Larissa Greece
4. Department of Endocrinology; ‘Hippokration’ General Hospital of Thessaloniki; Thessaloniki Greece
5. Department of Endocrinology and Diabetes Center; Athens General Hospital ‘G. Gennimatas’; Athens Greece
6. Division of Endocrinology; Department of Internal Medicine; University Hospital of Patras; Rio Greece
7. Department of Endocrinology; University of Ioannina; Ioannina Greece
8. Endocrine Unit; 2nd Department of Internal Medicine - Propaedeutic; Research Institute and Diabetes Center; Attikon University Hospital; Medical School; National and Kapodistrian University of Athens; Athens Greece
9. Department of Endocrinology; Evangelismos Hospital; Athens Greece
10. Endocrine Unit; Department of Medical Therapeutics; Medical School; University of Athens; Athens Greece