1. Immunology and Allergology Laboratory Unit , S. Giovanni di Dio Hospital , Florence , Italy
2. Department of Health Science , University of Florence , Florence , Italy
3. Department of Experimental and Clinical Medicine , University of Florence , Florence , Italy
4. Rheumatology Unit , S. Giovanni di Dio Hospital , Florence , Italy
5. Clinical Pathology Laboratory Unit , S. Giovanni di Dio Hospital , Florence , Italy
6. Department of Technical Health Services, Preventive Medicine , S. Giovanni di Dio Hospital , Florence , Italy
7. SOC Clinical Assistance Governance, SOS Preventive Medicine Unit , S. Giovanni di Dio Hospital , Florence , Italy