1. 4th Department of Internal Medicine, Joint Rheumatology Program, National and Kapodistrian University of Athens, Athens, Greece
2. Laboratory of Immune Regulation and Tolerance, Autoimmunity and Inflammation, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
3. Department of Rheumatology, “Asklepieion” General Hospital, Athens, Greece
4. Department of Rheumatology, Clinical Immunology, University of Crete Medical School and University Hospital of Heraklion, Heraklion, Greece
5. Laboratory of Rheumatology, Autoimmunity and Inflammation, Infections & Immunity Division, Institute of Molecular Biology and Biotechnology (FORTH), Heraklion, Greece