1 Pulmonology Department, University Hospital of Cattinara, University of Trieste, Trieste, Italy.
2 Division of Rheumatology, Department of Experimental and Clinical Medicine, University of Firenze, Florence, Italy.
3 Rheumatology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
4 Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
5 Azienda Ospedaliero Universitaria (AOU) City of Health and Science of Turin, Department of Science of Public Health and Pediatrics, University of Torino, Torino, Italy.
6 Department of Radiology, Department of Medicine, Surgery and Health Science, University of Trieste, Trieste, Italy.