2. Joint Rheumatology Program, National and Kapodistrian University of Athens, School of Medicine, Clinical Immunology-Rheumatology Unit, 2nd Department of Medicine and Laboratory, Athens, Greece
3. Joint Rheumatology Program, National and Kapodistrian University of Athens, School of Medicine-Clinical Immunology-Rheumatology Unit, 4th Department of Medicine, Athens, Greece
Aggelos Banos, Konstantinos Thomas, Anastasia Filia, Antigoni Pieta, Dimitrios T. Boumpas, Dimitrios Vassilopoulos