1 Division of Rheumatology, Scleroderma Unit, Careggi University Hospital, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
2 Department of Experimental and Clinical Medicine, Division of Internal Medicine, University of Florence, Careggi University Hospital, Florence, Italy.
3 Unit of Rheumatology, Immunology Allergology and Rare Disease (UNIRAR) & Inflammation, fibrosis and ageing initiative (INFLAGE), IRCCS, San Raffaele Hospital, Milano, Italy.