1 Department of Precision Medicine, Section of Rheumatology, University della Campania L Vanvitelli, Naples, Italy.
2 Department of Rheumatology, Gaetano Pini Institute, Milan, Italy.
3 Department of Clinical and Experimental Medicine, Rheumatology Research Unit, University of Naples Federico II School of Medicine and Surgery, Napoli, Campania, Italy.
4 Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy.
5 Department of Precision Medicine, Section of Rheumatology, University della Campania L Vanvitelli, Naples, Italy francesco.ciccia@unicampania.it.