1. Joint Academic Rheumatology Program, First Department of Propaedeutic and Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece,
2. First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece,
3. Department of Rheumatology, KAT Hospital, Athens, Greece,
4. Department of Rheumatology, School of Health Sciences, Faculty of Medicine, University of Ioannina, Ioannina, Greece,
5. Joint Academic Rheumatology Program, 4th Department of Internal Medicine, Attikon University Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece,
6. 4th Department of Medicine, Aristotle University, Thessaloniki, Greece,
7. Department of Rheumatology and Clinical Immunology, University of Thessaly, Larissa, Greece,
8. Joint Academic Rheumatology Program, Clinical Immunology, Rheumatology Unit, 2nd Department of Medicine and Laboratory, National and Kapodistrian University of Athens Medical School, General Hospital of Athens “Hippokration”, Athens, Greece,
9. Rheumatology Clinic, Naval Hospital of Athens, Athens, Greece,
10. Rheumatology Unit, Sismanoglio Hospital, Athens, Greece,
11. Rheumatology Department, General Hospital Elefsinas Thriaseio, Athens, Greece,
12. Department of Rheumatology, “Asklepieion” General Hospital, Athens, Greece,
13. Department of Rheumatology, Evaggelismos Athens General Hospital, Athens, Greece,
14. Department of Rheumatology, Patras University Hospital, University of Patras Medical School, Patras, Greece,
15. Private practice, Athens, Greece