1. Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
2. Rheumatology Outpatient Department, Henry Dunant Hospital Centre, Athens, Greece
3. Rheumatology Unit, Sismanogleio General Hospital, Athens, Greece
4. Rheumatology Outpatient Unit, Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Laikon Hospital, Athens, Greece
Vasiliki Koulouri, Adrianos Nezos, Nikolaos Marketos, Kyriaki Boki