1Rheumatology Unit, Az. Osp. San Camillo-Forlanini Hospital Rome, Italy
2Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
3Pulmonary Interstitial Diseases Unit, UOSD interstiziopatie polmonari, Az Osp. San Camillo-Forlanini Hospital, Rome, Italy,
4Clinical Pathology Unit, Az. Osp. San Camillo-Forlanini Hospital, Rome, Italy