1. Rheumatology Department, 417 Army Share Fund Hospital (NIMTS)
2. Rheumatology Unit, First Department of Propaedeutic Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
3. Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
4. 3rd Department of Internal Medicine, ‘Sotiria’ Regional Chest Diseases Hospital of Athens, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece