University of Lisbon, University of Lisbon, Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), Albert Schweitzer Hospital, University of Oxford - Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), NOVA University Lisbon, Aristotle University of Thessaloniki - Fourth Department of Internal Medicine, Aristotle University of Thessaloniki, Aristotle University of Thessaloniki, Aristotle University of Thessaloniki and Khalifa University