1. Department of Medicine-DIMED, Division of Rheumatology, University of Padova, 35128 Padova, Italy
2. Rheumatology Department, Centro Hospitalar e Universitário de Coimbra, 3000-075 Coimbra, Portugal
3. Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
4. Faculty of Health Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal