1SC Pneumologia, ASUGI, Trieste, Italy
2Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, San Martino Polyclinic Hospital, University of Genoa, Genoa, Italy
3Department of Internal Medicine Di.M.I, Osteoporosis, Bone and Joint Disease Research Center, CROPO, University of Genoa, Genoa, Italy
4Department of Integrated Surgical and Diagnostic Sciences, School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy
5Department of Radiology, Department of Medicine, Surgery and Health Science, University of Trieste, Trieste, Italy
6Cardinal Ferrari Centre, S. Stefano Rheabilitation, Fontanellato, Italy
7Division of Rheumatology, Department of Experimental and Clinical Medicine, University of Firenze, Florence, Italy